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A-96.250.861 / 160718
HART
Interface Description
Customer Support
SWAN and its representatives maintain a fully trained staff of technical specialists around the world. For any technical question, contact your nearest SWAN representative, or the manufacturer: SWAN ANALYTISCHE INSTRUMENTE AG Studbachstrasse 13 8340 Hinwil Switzerland Internet: www.swan.ch E-mail: [email protected]
Document Status
Title HART Interface Description
ID: A-96.250.861
Revision Issue
00 July 2016 First edition
01 August 2016 Added AMI Codes-II, AMI Deltacon and AMI Sodium
02 September 2016 Added AMI Oxysafe, AMI pH/mV:pH/mV, AMI Silica and AMI Solicon4
03 October 2016 Added AMI Inducon, AMI LineTOC and AMI Turbi
04 November 2016 Added chapter “Introduction”
05 January 2017 Added AMI CACE, AMI Hydrogen, AMI Pharmacon and AMI Rescon
06 October 2017 Added AMI Phosphate HL
07 January 2018 Added AMI Codes-II CC, AMI Codes-II O3 and AMI SAC254
© 2018 SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved
Subject to change without notice
HART Interface Description
A-96.250.861 / 160718
Table of Contents
Click on the links below:
Introduction
AMI CACE
AMI Codes-II
AMI Codes-II CC
AMI Codes-II O3
AMI Deltacon
AMI Hydrogen
AMI Inducon
AMI LineTOC
AMI Oxysafe
AMI Oxytrace
AMI Pharmacon
AMI pH/mV:pH/mV
AMI Phosphate HL
AMI pH-Redox
AMI Powercon
AMI Rescon
AMI SAC254
AMI Silica
AMI Silitrace
AMI Silitrace Ultra
AMI Sodium
AMI Solicon4
AMI Trides
AMI Turbi
HART Interface Description
A-96.250.861 / 160718
Introduction
The HART communication option for AMI transmitters supports HART Protocol Revision 7.5.
Requirements
- Mainboard AMI V2.5 or higher - HART interface PCB installed on the mainboard - Firmware V6.20 or higher
DD file
The manufacturer-specific DD file is available for download at http://www.swan.ch.
In some cases, a DD file is used by several instruments. The instruments concerned and the corresponding chapters are listed in the table below.
Instruments using the same DD file See chapter
AMI Deltacon DG and AMI Deltacon Power AMI Deltacon
AMI Sodium A and AMI Sodium P AMI Sodium
AMI Turbiwell, AMI Turbitrack, AMI Turbitrace AMI Turbi
AMI pH/mV:pH/mV and AMI pH/mV:pH/mV Pool AMI pH/mV:pH/mV
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI CACE Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ..................................................................................................................................... 4
1.1 Scope ................................................................................................................................... 4
1.2 Purpose ................................................................................................................................ 4
1.3 Who should use this document? ......................................................................................... 4
1.4 References ........................................................................................................................... 4
2. Device Identification ....................................................................................................................... 5
3. Product Overview ........................................................................................................................... 5
3.1 Connections ......................................................................................................................... 5
3.1.1 Point to point Mode ............................................................................................. 5
3.1.2 Multidrop Mode ................................................................................................... 6
3.1.3 HARTREC Board ................................................................................................ 6
4. Product Interfaces............................................................................................................................ 7
4.1 Process Interface ................................................................................................................. 7
4.1.1 Sensor Input Channels ......................................................................................... 7
4.2 Host Interface ...................................................................................................................... 7
4.2.1 Process Specific Conductivity ............................................................................. 7
4.3 Local Interfaces ................................................................................................................... 7
4.3.1 Local Controls and Displays ................................................................................ 7
4.3.2 Write Protection ................................................................................................... 7
5. Device Variables ............................................................................................................................. 8
5.1 Device Variable 0 Specific Conductivity (sc) ..................................................................... 8
5.2 Device Variable 1 Cation Conductivity (cc) ....................................................................... 8
5.3 Device Variable 2 Degassed Conductivity (dc) .................................................................. 8
5.4 Device Variable 3 First Temperature .................................................................................. 8
5.5 Device Variable 4 Second Temperature ............................................................................. 8
5.6 Device Variable 5 Third Temperature ................................................................................ 9
5.7 Device Variable 6 Conductivity Difference ........................................................................ 9
5.8 Device Variable 7 Main Flow ............................................................................................. 9
5.9 Device Variable 8 First Calculated Value (pH) .................................................................. 9
5.10 Device Variable 9 Second Calculated Value (Ammonium) ............................................... 9
5.11 Device Variable 10 Case Temperature ............................................................................... 9
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6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .......................................................................................................10
7. Status Information ..........................................................................................................................11
7.1 Field Device Status ............................................................................................................11
7.2 Extended Device Status .....................................................................................................11
7.3 Additional Device Status (Command #48) ........................................................................12
8. Universal Commands .....................................................................................................................14
9. Common-Practice Commands .......................................................................................................16
9.1 Supported Common Practice Commands ..........................................................................16
9.2 Burst Mode .........................................................................................................................16
9.3 Catch Device Variable .......................................................................................................16
10. Device-Specific Commands ...........................................................................................................16
11. Tables 17
11.1 Engineering Type Unit Codes ............................................................................................17
11.2 Classification Type Unit Codes .........................................................................................17
12. Performance ...................................................................................................................................18
12.1 Sampling Rates ..................................................................................................................18
12.2 Power-Up ...........................................................................................................................18
12.3 Command Response Times................................................................................................18
12.4 Long Messages ...................................................................................................................18
12.5 Non-Volatile Memory ........................................................................................................18
12.6 Modes .................................................................................................................................18
12.7 Write Protection .................................................................................................................18
12.8 Damping .............................................................................................................................18
Annex A. Capability Checklist ...........................................................................................................19
Annex B. Default Configuration ........................................................................................................20
Annex C. Revision History ................................................................................................................21
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI CACE transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI CACE manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_CACE_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI CACE
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58246 (E386 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 11
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI CACE HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI CACE manual to details on mounting Conductivity and Flow sensors.
4.2 Host Interface 4.2.1 Process Specific Conductivity The 4 to 20mA output of the AMI CACE HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Specific Conductivity (sc)
- Cation Conductivity (cc)
- Degassed Conductivity (dc)
- First Temperature
- Second Temperature
- Third Temperature
- Conductivity difference
- Main Flow
- First Calculated Value (pH)
- Second Calculated Value (Ammonium)
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI CACE manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes 11 Device Variables.
Device Variables Variables Meaning Units 0 Specific Conductivity (sc) uS/cm
1 Cation Conductivity (cc) uS/cm
2 Degassed Conductivity (dc) uS/cm
3 First Temperature °C
4 Second Temperature °C
5 Third Temperature °C
6 Conductivity Difference uS/cm
7 Main Flow l/h
8 First Calculated Value (pH) pH
9 Second Calculated Value (Ammonium) ppm
10 Case Temperature °C
5.1 Device Variable 0 Specific Conductivity (sc) Specific Conductivity is read by Specific Conductivity - 1st Temperature sensors (Refer to AMI CACE manual to details on it).
5.2 Device Variable 1 Cation Conductivity (cc) Cation Conductivity is read by Cation Conductivity - 2nd Temperature sensors (Refer to AMI CACE manual to details on it).
5.3 Device Variable 2 Degassed Conductivity (dc) Degassed Conductivity is read by Degassed Conductivity - 3rd Temperature sensors (Refer to AMI CACE manual to details on it).
5.4 Device Variable 3 First Temperature First Temperature is read by Specific Conductivity - 1st Temperature sensors (Refer to AMI CACE manual to details on it).
5.5 Device Variable 4 Second Temperature Second Temperature is read by Cation Conductivity - 2nd Temperature sensors (Refer to AMI CACE manual to details on it).
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5.6 Device Variable 5 Third Temperature Third Temperature is read by Degassed Conductivity - 3rd Temperature sensors (Refer to AMI CACE manual to details on it).
5.7 Device Variable 6 Conductivity Difference Conductivity Difference is calculated starting from Specific and Cation Conductivity sensor (Refer to AMI CACE manual to details on it).
5.8 Device Variable 7 Main Flow Main Flow is read by the flow rate sensor (Refer to AMI CACE manual to details on it).
5.9 Device Variable 8 First Calculated Value (pH) pH is calculated starting from Specific Conductivity-1st Temperature and Cation Conductivity - 2nd Temperature sensors (Refer to AMI CACE manual to details on it).
5.10 Device Variable 9 Second Calculated Value (Ammonium) Ammonium is calculated starting from Specific Conductivity - 1st Temperature and Cation Conductivity - 2nd Temperature sensors (Refer to AMI CACE manual to details on it).
5.11 Device Variable 10 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1st Temp – 2nd Temp – 3rd Temp – Cond. Diff. –
Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH
– ppm
SV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1st Temp – 2nd Temp – 3rd Temp – Cond. Diff. – Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH – ppm
TV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1st Temp – 2nd Temp – 3rd Temp – Cond. Diff. – Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH – ppm
QV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1st Temp – 2nd Temp – 3rd Temp – Cond. Diff. – Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH – ppm
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It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via cmd 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
(ALARMS-MAINTENANCE CODES)
Byte Bit Meaning Code
0-3 (INT32)
0 Cond. 1 Alarm high E001 1 Cond. 1 Alarm low E002 2 Cond. 2 Alarm high E003 3 Cond. 2 Alarm low E004 4 Cond. 3 Alarm high E005 5 Cond. 3 Alarm low E006 6 Temp. 1 high E007 7 Temp. 1 low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp.1 shorted E011 11 Temp.1 disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 pH Calculation undef E015 15 Degasser Frontend E016 16 Control Timeout E017 17 Degasser disconnected E018 18 Temp.2 shorted E019 19 Temp.2 disconnected E020 20 Temp.3 shorted E021 21 Temp.3 disconnected E022 22 Degasser Ctl Timeout E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 Calibration Degasser E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 EDI module exhausted E065
1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
14-17 (INT32)
0 pH Alarm high E033 1 pH Alarm low E034 2 Alk. Alarm high E035 3 Alk. Alarm low E036 4 Temp. 2 high E037 5 Temp. 2 low E038 6 Temp. 3 high E039 7 Temp. 3 low E040 8 Degasser Line Voltage E041 9 Degasser Temp. Shorted E042 10 EDI out of range E043 11 No Sample Flow E044 12 EDI DAC disconnected E045 13 EDI ADC disconnected E046 14 EDI Module Worn-Out E047 15 Reserved
16-31 Reserved "Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number
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to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity (Specific, Cation and Degassed) sensor value sample 1 per second
Temperature (1st, 2nd and 3rd ) sensors value sample 1 per second
Flow rate sensor value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI CACE rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 8 (seven external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 11
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Specific Conductivity
Lower Range Value 0 uS/cm
Upper Range Value 3000 uS/cm
PV Units uS/cm
Damping time constant 3.184 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI CACE
Document ID 109560.00
Document Revision
Date Device Revision DD Revision Description
1.0 26/10/2016 1 1 First release, for HART 7.x Device
2.0 18/05/2018 1 2 E047 added
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Codes-II Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Free residual chlorine ...............................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Disinfectant ............................................................................................8
5.2 Device Variable 1 pH ...........................................................................................................8
5.3 Device Variable 2 Main Temperature ..................................................................................8
5.4 Device Variable 3 Flow Rate ...............................................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................8
6.1 Mappable Variables .............................................................................................................8
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ............................................................................................................................9
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7.1 Field Device Status ..............................................................................................................9
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Unit Codes ..................................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
13. Capability Checklist .......................................................................................................................17
Annex A. Default Configuration ........................................................................................................18
Annex B. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Codes-II transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Codes-II manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Codes-II_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Codes-II
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58177 (E341 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Codes-II HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Codes-II manual to details on mounting external sensors.
4.2 Host Interface 4.2.1 Process Free residual chlorine The 4 to 20mA output of the AMI Codes-II HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Disinfectant
- Flow Rate
- pH
- Main Temperature
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Codes-II manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units
0 Disinfectant ppm 1 pH pH 2 Main Temperature °C 3 Flow Rate B/s 4 Case Temperature °C
5.1 Device Variable 0 Disinfectant Disinfectant is read with photometer sensor (Refer to AMI Codes-II manual to details on it).
5.2 Device Variable 1 pH pH is read with pH sensor (Refer to AMI Codes-II manual to details on it).
5.3 Device Variable 2 Main Temperature Main Temperature is read with temperature sensor (Refer to AMI Codes-II manual to details on it).
5.4 Device Variable 3 Flow Rate Flow rate is read with air bubble detector.
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Dis. – pH – Temp - Flow-rate ppm - pH - °C - B/s
SV Dis. – pH – Temp - Flow-rate ppm - pH - °C - B/s
TV Dis. – pH – Temp - Flow-rate ppm - pH - °C - B/s
QV Dis. – pH – Temp - Flow-rate ppm - pH - °C - B/s
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
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6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
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7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Code
0-3 (INT32)
0 DIS. Alarm high E001 1 DIS. Alarm low E002 2 pH Alarm high E003 3 pH Alarm low E004 4 DIS. too high E005 5 Reserved
6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Valve defective E015 15 Reserved
16 Control Timeout E017 17 Reagent Pump E018 18 FOME not connected E019 19 FOME dirty E020 20 DIS. invalid E021 21 Reagent empty E022 22 Cleaning Solution E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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0 DPD / Buffer E065 1 Reserved 2 Cleaning Solution E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
4-5 (INT16U)
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
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7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second 240 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Photometer sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow Rate sensor value sample 1 per second
pH sensor value sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Codes-II rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Photometer (Disinfectant)
Lower Range Value 0 ppm
Upper Range Value 20 ppm
PV Units ppm
Damping time constant 0.796 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Codes-II
Document ID 109351.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Codes-II CC Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Free residual chlorine ...............................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Free residual chlorine (frc) .....................................................................8
5.2 Device Variable 1 Total residual chlorine 1 (tc1) ................................................................8
5.3 Device Variable 2 Total residual chlorine 2 (tc2) ................................................................8
5.4 Device Variable 3 Calculated monochloramine (cmc) ........................................................8
5.5 Device Variable 4 Combined chlorine (ccc) ........................................................................8
5.6 Device Variable 5 Calculated dichloramine (cdc) ...............................................................8
5.7 Device Variable 6 Temperature ...........................................................................................8
5.8 Device Variable 7 Flow Rate ...............................................................................................8
5.9 Device Variable 8 pH ...........................................................................................................9
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5.10 Device Variable 10 Case Temperature ................................................................................9
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
13. Capability Checklist .......................................................................................................................18
Annex A. Default Configuration ........................................................................................................19
Annex B. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Codes-II CC transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Codes-II CC manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Codes-II_CC_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Codes-II CC
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58178 (E342 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 10
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Codes-II CC HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Codes-II CC manual to details on mounting external sensors.
4.2 Host Interface 4.2.1 Process Free residual chlorine The 4 to 20mA output of the AMI Codes-II CC HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Free residual chlorine (frc)
- Total residual chlorine 1 (tc1)
- Total residual chlorine 2 (tc2)
- Flow rate
- Calculated monochloramine (cmc)
- Combined chlorine (ccc)
- Calculated dichloramine (cdc)
- Temperature
- pH
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Codes-II CC manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes ten Device Variables
Device Variables Variables Meaning Units
0 Free residual chlorine ppm 1 Total residual chlorine 1 ppm 2 Total residual chlorine 2 ppm 3 Calculated monochloramine ppm 4 Combined chlorine ppm 5 Calculated dichloramine ppm 6 Temperature °C 7 Flow Rate B/s 8 pH pH 9 Case Temperature °C
5.1 Device Variable 0 Free residual chlorine (frc) Free residual chlorine is read with photometer sensor (Refer to AMI Codes-II CC manual to details on it).
5.2 Device Variable 1 Total residual chlorine 1 (tc1) Total residual chlorine 1 is read with photometer sensor (Refer to AMI Codes-II CC manual to details on it).
5.3 Device Variable 2 Total residual chlorine 2 (tc2) Total residual chlorine 2 is read with photometer sensor (Refer to AMI Codes-II CC manual to details on it).
5.4 Device Variable 3 Calculated monochloramine (cmc) Calculated monochloramine is calculated (Refer to AMI Codes-II CC manual to details on it).
5.5 Device Variable 4 Combined chlorine (ccc) Combined chlorine is calculated (Refer to AMI Codes-II CC manual to details on it).
5.6 Device Variable 5 Calculated dichloramine (cdc) Calculated dichloramine is calculated.
5.7 Device Variable 6 Temperature Temperature is read with Temperature sensor.
5.8 Device Variable 7 Flow Rate Flow rate is read with air bubble detector.
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5.9 Device Variable 8 pH pH rate is read with pH sensor.
5.10 Device Variable 10 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV frc-tc1-tc2-cmc-ccc-cdc/Temp/Flow-rate/pH ppm / °C / (B/s) / pH
SV frc-tc1-tc2-cmc-ccc-cdc/Temp/Flow-rate/pH ppm / °C / (B/s) / pH
TV frc-tc1-tc2-cmc-ccc-cdc/Temp/Flow-rate/pH ppm / °C / (B/s) / pH
QV frc-tc1-tc2-cmc-ccc-cdc/Temp/Flow-rate/pH ppm / °C / (B/s) / pH
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Code
0-3 (INT32)
0 Alarm high fac E001 1 Alarm low fac E002 2 Alarm high tc1 E003 3 Alarm low tc1 E004 4 Alarm high tc2 E005 5 Alarm low tc2 E006 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Valve 1 defective E015 15 DIS. Invalid E016 16 Control Timeout E017 17 Reagent Pump E018
18 Photometer not connected E019
19 Photometer dirty E020 20 Absorbance too high E021 21 Reagent empty E022 22 Cleaning Solution E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 DPD / Buffer E065 1 Potassium Iodide E066 2 Cleaning Solution E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
14-17 (INT32)
0 Alarm high cmc E033 1 Alarm low cmc E034 2 Alarm high ccc E035 3 Alarm low ccc E036 4 Alarm high cdc E037 5 Alarm low cdc E038 6 Alarm high pH E039 7 Alarm low pH E040
8-31 Reserved "Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second (custom) 240 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
frc-tc1-tc2-cmc-ccc-cdc sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow Rate sensor value sample 1 per second
pH sensor value sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Codes-II CC rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 2 on-off valves
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 10
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Free residual chlorine (frc)
Lower Range Value 0 ppm
Upper Range Value 20 ppm
PV Units ppm
Damping time constant 0.796 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Codes-II CC
Document ID 109352.00
Document Revision
Date Device Revision DD Revision Description
1.0 28/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Codes-II O3 Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
SWAN Analytical Instruments AMI Codes-II O3 HART Manual
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Free residual chlorine ...............................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Disinfectant ............................................................................................8
5.2 Device Variable 1 pH ...........................................................................................................8
5.3 Device Variable 2 Main Temperature ..................................................................................8
5.4 Device Variable 3 Flow Rate ...............................................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................8
6.1 Mappable Variables .............................................................................................................8
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ............................................................................................................................9
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7.1 Field Device Status ..............................................................................................................9
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Unit Codes ..................................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
13. Capability Checklist .......................................................................................................................17
Annex A. Default Configuration ........................................................................................................18
Annex B. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Codes-II O3 transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Codes-II O3 manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Codes-II_O3_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Codes-II O3
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58303 (E3BF Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Codes-II O3 HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Codes-II O3 manual to details on mounting external sensors.
4.2 Host Interface 4.2.1 Process Free residual chlorine The 4 to 20mA output of the AMI Codes-II O3 HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Disinfectant
- Flow Rate
- pH
- Main Temperature
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Codes-II O3 manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units
0 Disinfectant ppb 1 pH pH 2 Main Temperature °C 3 Flow Rate B/s 4 Case Temperature °C
5.1 Device Variable 0 Disinfectant Disinfectant is read with photometer sensor (Refer to AMI Codes-II O3 manual to details on it).
5.2 Device Variable 1 pH pH is read with pH sensor (Refer to AMI Codes-II O3 manual to details on it).
5.3 Device Variable 2 Main Temperature Main Temperature is read with temperature sensor (Refer to AMI Codes-II O3 manual to details on it).
5.4 Device Variable 3 Flow Rate Flow rate is read with air bubble detector.
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Dis. – pH – Temp - Flow-rate ppb - pH - °C - B/s
SV Dis. – pH – Temp - Flow-rate ppb - pH - °C - B/s
TV Dis. – pH – Temp - Flow-rate ppb - pH - °C - B/s
QV Dis. – pH – Temp - Flow-rate ppb - pH - °C - B/s
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
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6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
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7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Code
0-3 (INT32)
0 DIS. Alarm high E001 1 DIS. Alarm low E002 2 pH Alarm high E003 3 pH Alarm low E004 4 DIS. too high E005 5 Reserved
6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Valve defective E015 15 Reserved
16 Control Timeout E017 17 Reagent Pump E018 18 FOME not connected E019 19 FOME dirty E020 20 DIS. invalid E021 21 Reagent empty E022 22 Cleaning Solution E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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0 DPD / Buffer E065 1 Reagents expired E066 2 Cleaning Solution E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
4-5 (INT16U)
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
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7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second 240 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Photometer sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow Rate sensor value sample 1 per second
pH sensor value sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Codes-II O3 rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Photometer (Disinfectant)
Lower Range Value 0 ppb
Upper Range Value 500 ppb
PV Units ppb
Damping time constant 0.796 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Codes-II O3
Document ID 109351.00
Document Revision
Date Device Revision DD Revision Description
1.0 18/10/2017 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Deltacon Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ..................................................................................................................................... 4
1.1 Scope ................................................................................................................................... 4
1.2 Purpose ................................................................................................................................ 4
1.3 Who should use this document? ......................................................................................... 4
1.4 References ........................................................................................................................... 4
2. Device Identification ....................................................................................................................... 5
3. Product Overview ........................................................................................................................... 5
3.1 Connections ......................................................................................................................... 5
3.1.1 Point to point Mode ............................................................................................. 5
3.1.2 Multidrop Mode ................................................................................................... 6
3.1.3 HARTREC Board ................................................................................................ 6
4. Product Interfaces............................................................................................................................ 7
4.1 Process Interface ................................................................................................................. 7
4.1.1 Sensor Input Channels ......................................................................................... 7
4.2 Host Interface ...................................................................................................................... 7
4.2.1 Process Specific Conductivity ............................................................................. 7
4.3 Local Interfaces ................................................................................................................... 7
4.3.1 Local Controls and Displays ................................................................................ 7
4.3.2 Write Protection ................................................................................................... 7
5. Device Variables ............................................................................................................................. 8
5.1 Device Variable 0 Specific Conductivity (sc) ..................................................................... 8
5.2 Device Variable 1 Cation Conductivity (cc) ....................................................................... 8
5.3 Device Variable 2 Degassed Conductivity (dc) .................................................................. 8
5.4 Device Variable 3 First Temperature .................................................................................. 8
5.5 Device Variable 4 Second Temperature ............................................................................. 8
5.6 Device Variable 5 Third Temperature ................................................................................ 9
5.7 Device Variable 6 Conductivity Difference ........................................................................ 9
5.8 Device Variable 7 Main Flow ............................................................................................. 9
5.9 Device Variable 8 First Calculated Value (pH) .................................................................. 9
5.10 Device Variable 9 Second Calculated Value (Ammonium) ............................................... 9
5.11 Device Variable 10 Case Temperature ............................................................................... 9
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6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .......................................................................................................10
7. Status Information ..........................................................................................................................11
7.1 Field Device Status ............................................................................................................11
7.2 Extended Device Status .....................................................................................................11
7.3 Additional Device Status (Command #48) ........................................................................12
8. Universal Commands .....................................................................................................................14
9. Common-Practice Commands .......................................................................................................16
9.1 Supported Common Practice Commands ..........................................................................16
9.2 Burst Mode .........................................................................................................................16
9.3 Catch Device Variable .......................................................................................................16
10. Device-Specific Commands ...........................................................................................................16
11. Tables 17
11.1 Engineering Type Unit Codes ............................................................................................17
11.2 Classification Type Unit Codes .........................................................................................17
12. Performance ...................................................................................................................................18
12.1 Sampling Rates ..................................................................................................................18
12.2 Power-Up ...........................................................................................................................18
12.3 Command Response Times................................................................................................18
12.4 Long Messages ...................................................................................................................18
12.5 Non-Volatile Memory ........................................................................................................18
12.6 Modes .................................................................................................................................18
12.7 Write Protection .................................................................................................................18
12.8 Damping .............................................................................................................................18
Annex A. Capability Checklist ...........................................................................................................19
Annex B. Default Configuration ........................................................................................................20
Annex C. Revision History ................................................................................................................21
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Deltacon transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Deltacon manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_DeltaconPower _xx.pdf / MenAMI_DeltaconDG_xx.pdf Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Deltacon
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58151 (E327 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 11
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Deltacon HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Deltacon manual to details on mounting Conductivity and Flow sensors.
4.2 Host Interface 4.2.1 Process Specific Conductivity The 4 to 20mA output of the AMI Deltacon HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Specific Conductivity (sc)
- Cation Conductivity (cc)
- Degassed Conductivity (dc)
- First Temperature
- Second Temperature
- Third Temperature
- Conductivity difference
- Main Flow
- First Calculated Value (pH)
- Second Calculated Value (Ammonium)
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Deltacon manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes 11 Device Variables.
Device Variables Variables Meaning Units 0 Specific Conductivity (sc) uS/cm
1 Cation Conductivity (cc) uS/cm
2 Degassed Conductivity (dc) uS/cm
3 First Temperature °C
4 Second Temperature °C
5 Third Temperature °C
6 Conductivity Difference uS/cm
7 Main Flow l/h
8 First Calculated Value (pH) pH
9 Second Calculated Value (Ammonium) ppm
10 Case Temperature °C
5.1 Device Variable 0 Specific Conductivity (sc) Specific Conductivity is read by Specific Conductivity-1 P
stP Temperature sensors (Refer to AMI
Deltacon manual to details on it).
5.2 Device Variable 1 Cation Conductivity (cc) Cation Conductivity is read by Cation Conductivity-2 P
ndP Temperature sensors (Refer to AMI Deltacon
manual to details on it).
5.3 Device Variable 2 Degassed Conductivity (dc) Degassed Conductivity is read by Degassed Conductivity-3 P
rdP Temperature sensors (Refer to AMI
Deltacon manual to details on it).
5.4 Device Variable 3 First Temperature First Temperature is read by Specific Conductivity -1P
stP Temperature sensors (Refer to AMI Deltacon
manual to details on it).
5.5 Device Variable 4 Second Temperature Second Temperature is read by Cation Conductivity -2 P
ndP Temperature sensors (Refer to AMI
Deltacon manual to details on it).
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5.6 Device Variable 5 Third Temperature Third Temperature is read by Degassed Conductivity–3 P
rdP Temperature sensors (Refer to AMI
Deltacon manual to details on it).
5.7 Device Variable 6 Conductivity Difference Conductivity Difference is calculated starting from Specific and Cation Conductivity sensor (Refer to AMI Deltacon manual to details on it).
5.8 Device Variable 7 Main Flow Main Flow is read by the flow rate sensor (Refer to AMI Deltacon manual to details on it).
5.9 Device Variable 8 First Calculated Value (pH) pH is calculated starting from Specific Conductivity-1 P
stP Temperature and Cation Conductivity-2 P
ndP
Temperature sensors (Refer to AMI Deltacon manual to details on it).
5.10 Device Variable 9 Second Calculated Value (Ammonium) Ammonium is calculated starting from Specific Conductivity-1P
stP Temperature and Cation
Conductivity-2P
ndP Temperature sensors (Refer to AMI Deltacon manual to details on it).
5.11 Device Variable 10 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1P
stP
Temp – 2 P
ndP Temp – 3 P
rdP Temp – Cond. Diff. –
Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH
– ppm
SV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1P
stP
Temp – 2P
ndP Temp – 3P
rdP Temp – Cond. Diff. –
Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH – ppm
TV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1P
stP
Temp – 2P
ndP Temp – 3P
rdP Temp – Cond. Diff. –
Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH – ppm
QV
Spec. Cond. – Cat. Cond. – Deg. Cond. – 1P
stP
Temp – 2P
ndP Temp – 3P
rdP Temp – Cond. Diff. –
Main Flow – pH – Ammonium
uS/cm - uS/cm - uS/cm -°C –°C –°C – uS/cm - l/h – pH – ppm
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It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via cmd 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
(ALARMS-MAINTENANCE CODES)
Byte Bit Meaning Code
0-3 (INT32)
0 Cond. 1 Alarm high E001 1 Cond. 1 Alarm low E002 2 Cond. 2 Alarm high E003 3 Cond. 2 Alarm low E004 4 Cond. 3 Alarm high E005 5 Cond. 3 Alarm low E006 6 Temp. 1 high E007 7 Temp. 1 low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp.1 shorted E011 11 Temp.1 disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 pH Calculation undef. E015 15 Degasser Frontend E016 16 Control Timeout E017 17 Degasser disconnected E018 18 Temp.2 shorted E019 19 Temp.2 disconnected E020 20 Temp.3 shorted E021 21 Temp.3 disconnected E022 22 Degasser Ctl Timeout E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 Calibration Degasser E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 Reserved
1 Reserved 2 Resin depleted E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
14-17 (INT32)
0 pH Alarm high E033 1 pH Alarm low E034 2 Alk. Alarm high E035 3 Alk. Alarm low E036 4 Temp. 2 high E037 5 Temp. 2 low E038 6 Temp. 3 high E039 7 Temp. 3 low E040 8 Degasser Line Voltage E041
9 Degasser Temp. Shorted E042
10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Quality Assurance E048
16-31 Reserved "Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number
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to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity (Specific, Cation and Degassed) sensor value sample 1 per second
Temperature (1 P
stP, 2 P
ndP and 3 P
rdP ) sensors value sample 1 per second
Flow rate sensor value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Deltacon rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 8 (seven external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 11
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Specific Conductivity
Lower Range Value 0 uS/cm
Upper Range Value 3000 uS/cm
PV Units uS/cm
Damping time constant 3.184 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Deltacon
Document ID 109347.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Hydrogen Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Hydrogen ................................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Saturation ...............................................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Type Unit Codes .........................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Annex A. Capability Checklist ...........................................................................................................18
Annex B. Default Configuration ........................................................................................................19
Annex C. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Hydrogen transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Hydrogen manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Hydrogen_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Hydrogen
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58183 (E347 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Hydrogen HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Hydrogen manual to details on mounting external sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Hydrogen HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Hydrogen
- Temperature
- Flow rate
- Saturation
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Hydrogen manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units 0 Hydrogen ppb
1 Temperature °C
2 Flow Rate l/h
3 Saturation %
4 Case Temperature °C
5.1 Device Variable 0 Hydrogen The Hydrogen is read by the Hydrogen sensor (Refer to AMI Hydrogen manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the temperature sensor inside the Temperature sensor (Refer to AMI Hydrogen manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Hydrogen manual to details on it).
5.4 Device Variable 3 Saturation Saturation is calculated with air pressure and Hydrogen.
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Hydrogen– Temperature – Flow Rate -
Saturation ppb - °C – l/h – %
SV Hydrogen– Temperature – Flow Rate -
Saturation ppb - °C – l/h – %
TV Hydrogen– Temperature – Flow Rate -
Saturation ppb - °C – l/h – %
QV Hydrogen– Temperature – Flow Rate -
Saturation ppb - °C – l/h – %
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Hydrogen Alarm high E001 1 Hydrogen Alarm low E002 2 Saturation Alarm high E003 3 Saturation Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Reserved 15 Reserved 16 Control Timeout E017 17 Faraday Efficiency E018 18 Quality Assurance E019 19 Reserved 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
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All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
4-5 (INT16)
0 Electrolyte depleted E065 1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved
10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Revolutions per minute 119 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Milligram per liter 170 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Hydrogen sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Saturation value 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Hydrogen rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Hydrogen
Lower Range Value 0 ppb
Upper Range Value 20000 ppb
PV Units ppb
Damping time constant 1.59 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Hydrogen
Document ID 109356.00
Document Revision
Date Device Revision DD Revision Description
1.0 28/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Inducon Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Conductivity ...........................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Uncompensated Conductivity ................................................................8
5.5 Device Variable 4 Concentration .........................................................................................8
5.6 Device Variable 5 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
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7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Type Unit Codes .........................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Annex A. Capability Checklist ...........................................................................................................18
Annex B. Default Configuration ........................................................................................................19
Annex C. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Inducon transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Inducon manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Inducon_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Inducon
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58184 (E348 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Inducon HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Inducon manual to details on mounting external sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Inducon HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Conductivity
- Temperature
- Flow rate
- Uncompensated Conductivity
- Concentration
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Inducon manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units 0 Conductivity mS/cm
1 Temperature °C
2 Flow Rate l/h
3 Uncomp. Conductivity mS/cm
4 Concentration % OR mg/l
5 Case Temperature °C
5.1 Device Variable 0 Conductivity The Conductivity is read by the Conductivity sensor Swansensor Inducon1000 (Refer to AMI Inducon manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the Conductivity sensor Swansensor Inducon1000 (Refer to AMI Inducon manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Inducon manual to details on it).
5.4 Device Variable 3 Uncompensated Conductivity Uncomp. Conductivity is read by the Conductivity sensor.
5.5 Device Variable 4 Concentration Concentration is calculated based on the conductivity (Refer to AMI Inducon manual to details on it).
5.6 Device Variable 5 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Conductivity – Temperature – Flow Rate –
Uncomp. Cond. - Concentration mS/cm - °C – l/h – mS/cm -
% OR mg/l
SV Conductivity – Temperature – Flow Rate –
Uncomp. Cond. - Concentration mS/cm - °C – l/h – mS/cm -
% OR mg/l
TV Conductivity – Temperature – Flow Rate –
Uncomp. Cond. - Concentration mS/cm - °C – l/h – mS/cm -
% OR mg/l
QV Conductivity – Temperature – Flow Rate –
Uncomp. Cond. - Concentration mS/cm - °C – l/h – mS/cm -
% OR mg/l
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Cond. Alarm high E001 1 Cond. Alarm low E002 2 Conc. Alarm high E003 3 Conc. Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Reserved 15 Reserved 16 Control Timeout E017 17 Temp. out of Table Range E018 18 Conc. out of Table Range E019 19 Reserved 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
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All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
4-5 (INT16)
0 Photometer dirty E065 1 Filter congested E066 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved
10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Milli Siemens per centimeter 66 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Milligram per liter 242 Not used 250
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Uncompensated conductivity value sample 1 per second
Concentration 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Inducon rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 6
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Conductivity
Lower Range Value 0 mS/cm
Upper Range Value 2000 uS/cm
PV Units mS/cm
Damping time constant 3.184 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Inducon
Document ID 109357.00
Document Revision
Date Device Revision DD Revision Description
1.0 08/04/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI LineTOC Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Total Organic Carbon (TOC) .................................................................8
5.2 Device Variable 1 Conductivity 1 ........................................................................................8
5.3 Device Variable 2 Conductivity 2 ........................................................................................8
5.4 Device Variable 3 Temperature 1 ........................................................................................8
5.5 Device Variable 4 Temperature 2 ........................................................................................8
5.6 Device Variable 5 Concentration 1 ......................................................................................8
5.7 Device Variable 6 Concentration 2 ......................................................................................8
5.8 Device Variable 7 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
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6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Type Unit Codes .........................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
Annex A. Capability Checklist ...........................................................................................................17
Annex B. Default Configuration ........................................................................................................18
Annex C. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI LineTOC transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI LineTOC manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_LineTOC_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI LineTOC
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58196 (E354 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 8
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI LineTOC HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI LineTOC manual to details on mounting external sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI LineTOC HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Total Organic Carbon (TOC)
- Conductivity 1
- Conductivity 2
- Temperature 1
- Temperature 2
- Concentration 1
- Concentration 2
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI LineTOC manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes eight Device Variables
Device Variables Variables Meaning Units 0 Total Organic Carbon (TOC) ppb
1 Conductivity 1 uS/cm
2 Conductivity 2 uS/cm
3 Temperature 1 °C
4 Temperature 2 °C
5 Concentration 1 ppb
6 Concentration 2 ppb
7 Case Temperature °C
5.1 Device Variable 0 Total Organic Carbon (TOC) Total Organic Carbon is calculated by means of the conductivity sensor (Refer to AMI LineTOC manual to details on it).
5.2 Device Variable 1 Conductivity 1 Conductivity 1 is read by the conductivity sensor 1 (Refer to AMI LineTOC manual to details on it).
5.3 Device Variable 2 Conductivity 2 Conductivity 2 is read by the conductivity sensor 2 (Refer to AMI LineTOC manual to details on it).
5.4 Device Variable 3 Temperature 1 Temperature 1 is read by the temperature sensor inside Conductivity sensor 1.
5.5 Device Variable 4 Temperature 2 Temperature 2 is read by the temperature sensor inside Conductivity sensor 2.
5.6 Device Variable 5 Concentration 1 Concentration 1 is calculated by means of Conductivity 1 and Temperature 1.
5.7 Device Variable 6 Concentration 2 Concentration 2 is calculated by means of Conductivity 2 and Temperature 2.
5.8 Device Variable 7 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV TOC– Cond 1– Cond 2 –Temp1 – Temp2 –
Conc1 – Conc2 Ppb – uS/cm – uS/cm - °C -
°C – ppb - ppb
SV TOC– Cond 1– Cond 2 –Temp1 – Temp2 –
Conc1 – Conc2 Ppb – uS/cm – uS/cm - °C -
°C – ppb - ppb
TV TOC– Cond 1– Cond 2 –Temp1 – Temp2 –
Conc1 – Conc2 Ppb – uS/cm – uS/cm - °C -
°C – ppb - ppb
QV TOC– Cond 1– Cond 2 –Temp1 – Temp2 –
Conc1 – Conc2 Ppb – uS/cm – uS/cm - °C -
°C – ppb - ppb
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS / MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 TOC Alarm high E001 1 TOC Alarm low E002 2 Cond. 1 Alarm high E003 3 Cond. 1 Alarm low E004 4 Cond. 2 Alarm high E005 5 Cond. 2 Alarm low E006 6 Temp. 1 Alarm high E007 7 Temp. 1 Alarm low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. 1 shorted E011 11 Temp. 1 disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Lamp E015 15 Rovalve E016 16 Control Timeout E017 17 Periclip E018 18 Temp.2 shorted E019 19 Temp.2 disconnected E020 20 Temp. 2 Alarm high E021 21 Temp. 2 Alarm low E022 22 EVG E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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"Reserved" bits are always set to 0.
Byte Bit Meaning Alarm Code
4-5
(INT16)
0 Photometer dirty E065 1 Filter congested E066 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved
10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
All bits used in this eight bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables
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classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Milligram per liter 170 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity sensor value sample 1 per second
Temperature sensor value sample 1 per second
Concentration 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI LineTOC rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 8
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Conductivity
Lower Range Value 0 ppb
Upper Range Value 2000 ppb
PV Units ppb
Damping time constant 4.778 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI LineTOC
Document ID 109354.00
Document Revision
Date Device Revision DD Revision Description
1.0 09/08/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Oxysafe Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
SWAN Analytical Instruments AMI Oxysafe HART Manual
109359.00 / 270616 2
TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Oxygen ...................................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Saturation ...............................................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Type Unit Codes .........................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
Annex A. Capability Checklist ...........................................................................................................17
Annex B. Default Configuration ........................................................................................................18
Annex C. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Oxysafe transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Oxysafe manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Oxysafe_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Oxysafe
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58186 (E34A Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Oxysafe HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Oxysafe manual to details on mounting external sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Oxysafe HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Oxygen
- Temperature
- Flow rate
- Saturation
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Oxysafe manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units 0 Oxygen ppm
1 Temperature °C
2 Flow Rate l/h
3 Saturation %
4 Case Temperature °C
5.1 Device Variable 0 Oxygen The Oxygen is read with Swansensor Oxysafe 1000 (Refer to AMI Oxysafe manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the temperature sensor inside the Oxygen sensor (Refer to AMI Oxysafe manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Oxysafe manual to details on it).
5.4 Device Variable 3 Saturation Saturation is calculated with Swansensor Oxysafe 1000 (Refer to AMI Oxysafe manual to details on it).
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Oxygen – Temperature – Flow Rate -
Saturation ppm - °C – l/h – %
SV Oxygen – Temperature – Flow Rate -
Saturation ppm - °C – l/h – %
TV Oxygen – Temperature – Flow Rate -
Saturation ppm - °C – l/h – %
QV Oxygen – Temperature – Flow Rate -
Saturation ppm - °C – l/h – %
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 4 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Oxygen Alarm high E001 1 Oxygen Alarm low E002 2 Saturation Alarm high E003 3 Saturation Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Reserved 15 Reserved 16 Control Timeout E017 17 Reserved 18 Reserved 19 Reserved 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
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All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
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18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Revolutions per minute 119 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Milligram per liter 170 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Oxygen sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Saturation value 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Oxysafe rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Oxygen
Lower Range Value 0 ppm
Upper Range Value 20.0 ppm
PV Units ppm
Damping time constant 3.185 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Oxysafe
Document ID 109359.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Oxytrace Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
SWAN Analytical Instruments AMI Oxytrace HART Manual
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Oxygen ...................................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Saturation ...............................................................................................8
5.4 Device Variable 3 Flow Rate ...............................................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Type Unit Codes .........................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Annex A. Capability Checklist ...........................................................................................................18
Annex B. Default Configuration ........................................................................................................19
Annex C. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Oxytrace transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Oxytrace manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_ Oxytrace _xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Oxytrace
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58153 (E329 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Oxytrace HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Oxytrace manual to details on mounting Faraday electrode, Oxygen and Flow sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Oxytrace HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Oxygen
- Temperature
- Saturation
- Flow rate
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Oxytrace manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables.
Device Variables Variables Meaning Units 0 Oxygen ppb
1 Temperature °C
2 Saturation %
3 Flow Rate l/h
4 Case Temperature °C
5.1 Device Variable 0 Oxygen Oxygen concentration is read by the Swansensor Oxygen sensor (Refer to AMI Oxytrace manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the temperature sensor inside the Swansensor Oxygen sensor (Refer to AMI Oxytrace manual to details on it).
5.3 Device Variable 2 Saturation Saturation is read by the Swansensor Oxygen sensor (Refer to AMI Oxytrace manual to details on it).
5.4 Device Variable 3 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Oxytrace manual to details on it).
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Oxygen – Temperature – Saturation - Flow Rate Ppb - °C – % - l/h
SV Oxygen – Temperature – Saturation - Flow Rate Ppb - °C – % - l/h
TV Oxygen – Temperature – Saturation - Flow Rate Ppb - °C – % - l/h
QV Oxygen – Temperature – Saturation - Flow Rate Ppb - °C – % - l/h
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via cmd 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
(ALARMS-MAINTENANCE CODES)
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Oxygen Alarm high E001 1 Oxygen Alarm low E002 2 Saturation Alarm high E003 3 Saturation Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high
E009
9 Sample Flow low
E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Reserved 15 Reserved 16 Control Timeout E017 17 Faraday Efficiency E018 18 Quality Assurance E019 19 Reserved 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56
E025
25 IC LM75
E026 26 IC PCF8574
E027
27 Signal output open
E028 28 EEProm Motherboard
E029
29 EEProm Frontend
E030 30 Cal. Recout
E031
31 Wrong Frontend
E032 "Reserved" bits are always set to 0.
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All bits used in these bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
4-5 (INT16)
0 Electrolyte depleted E065 1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved
10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Oxygen sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Saturation value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Oxytrace rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Oxygen
Lower Range Value 0 ppb
Upper Range Value 20000 ppb
PV Units Ppb
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY Document Title HART Interface Description AMI Oxytrace
Document ID 109348.00
Document Revision
Date Device Revision DD Revision Description
1.0 17/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Pharmacon Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Conductivity ...........................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Uncompensated Conductivity ................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Type Unit Codes .........................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
Annex A. Capability Checklist ...........................................................................................................17
Annex B. Default Configuration ........................................................................................................18
Annex C. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Pharmacon transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Pharmacon manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Pharmacon_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Pharmacon
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58187 (E34B Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Pharmacon HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Pharmacon manual to details on mounting Conductivity and Flow sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Pharmacon HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Conductivity
- Temperature
- Flow rate
- Uncompensated Conductivity
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Pharmacon manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units 0 Conductivity uS/cm
1 Temperature °C
2 Flow Rate l/h
3 Uncomp. Conductivity uS/cm
4 Case Temperature °C
5.1 Device Variable 0 Conductivity The Conductivity is read by the two-electrode Conductivity sensor (Refer to AMI Pharmacon manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the Pt1000 temperature sensor inside the Conductivity sensor (Refer to AMI Pharmacon manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Pharmacon manual to details on it).
5.4 Device Variable 3 Uncompensated Conductivity Uncomp. Conductivity is read by the Conductivity sensor.
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
SV Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
TV Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
QV Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 4 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Cond. Alarm high E001 1 Cond. Alarm low E002 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 USP Error E015 15 Reserved 16 Control Timeout E017 17 Quality Assurance E018 18 Reserved 19 Reserved 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Uncompensated conductivity value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Pharmacon rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Conductivity
Lower Range Value 0 uS/cm
Upper Range Value 300000 uS/cm
PV Units uS/cm
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Pharmacon
Document ID 109360.00
Document Revision
Date Device Revision DD Revision Description
1.0 17/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI pH/mV:pH/mV Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process pH 1 .........................................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 pH 1 / Redox 1 .......................................................................................8
5.2 Device Variable 1 pH 2 / Redox 2 .......................................................................................8
5.3 Device Variable 2 Temperature 1 ........................................................................................8
5.4 Device Variable 3 Temperature 2 ........................................................................................8
5.5 Device Variable 4 Flow Rate ...............................................................................................8
5.6 Device Variable 5 pH Difference .........................................................................................8
5.7 Device Variable 6 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
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6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Unit Codes ..................................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................17
Annex A. Default Configuration ........................................................................................................18
Annex B. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI pH/mV:pH/mV transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI pH/mV:pH/mV manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_pH-mV_01.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI
pH/mV:pH/mV
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58176 (E340 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 7
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI pH/mV:pH/mV HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI pH/mV:pH/mV manual to details on mounting external sensors.
4.2 Host Interface 4.2.1 Process pH 1 The 4 to 20mA output of the AMI pH/mV:pH/mV HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- pH 1 / Redox 1
- pH 2 / Redox 2
- Temperature 1
- Temperature 2
- Flow Rate
- pH Difference
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI pH/mV:pH/mV manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes seven Device Variables
Device Variables Variables Meaning Units 0 pH 1 / Redox 1 pH / mV
1 pH 2 / Redox 2 pH / mV
2 Temperature 1 °C
3 Temperature 2 °C
4 Flow Rate l/h
5 pH Difference pH
6 Case Temperature °C
5.1 Device Variable 0 pH 1 / Redox 1 pH 1 / Redox 1 is read with pH sensor / Redox sensor (Refer to AMI pH/mV:pH/mV manual to details on it).
5.2 Device Variable 1 pH 2 / Redox 2 pH 2 / Redox 2 is read with pH sensor / Redox sensor (Refer to AMI pH/mV:pH/mV manual to details on it).
5.3 Device Variable 2 Temperature 1 Temperature 1 is read with Temperature sensor (Refer to AMI pH/mV:pH/mV manual to details on it).
5.4 Device Variable 3 Temperature 2 Temperature 2 is read with Temperature sensor (Refer to AMI pH/mV:pH/mV manual to details on it).
5.5 Device Variable 4 Flow Rate Flow Rate is read with Delta T Flow sensor (Refer to AMI pH/mV:pH/mV manual to details on it).
5.6 Device Variable 5 pH Difference pH Difference is calculated with pH 1 and pH 2.
5.7 Device Variable 6 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV pH 1-2 / Redox 1-2 – Temp 1-2 – Main Flow –
pH Diff. pH/mV - °C – l/h - pH
SV pH 1-2 / Redox 1-2 – Temp 1-2 – Main Flow –
pH Diff. pH/mV - °C – l/h - pH
TV pH 1-2 / Redox 1-2 – Temp 1-2 – Main Flow –
pH Diff. pH/mV - °C – l/h - pH
QV pH 1-2 / Redox 1-2 – Temp 1-2 – Main Flow –
pH Diff. pH/mV - °C – l/h - pH
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 4 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Alarm 1 high E001 1 Alarm 1 low E002 2 Alarm 2 high E003 3 Alarm 2 low E004 4 Temp. 1 high E005 5 Temp. 1 low E006 6 Temp. 2 high E007 7 Temp. 2 low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. 1 shorted E011 11 Temp. 1 disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Difference high E015 15 Difference low E016 16 Control Timeout E017 17 Reserved 18 Temp. 2 shorted E019 19 Temp. 2 disconnected E020 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Cal. Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Ph1 - 2 / Redox 1 - 2 sensor value sample 1 per second
Temperature 1 - 2 sensor value sample 1 per second
Flow Rate sensor value sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
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12.8 Damping Damping time is calculated for each dynamic variable. Capability Checklist
Manufacturer, model and revision SWAN Analytic Instruments, AMI pH/mV:pH/mV rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 7
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type pH 1 / Redox 1
Lower Range Value -3 pH / -500 mV
Upper Range Value 15 pH / 1500 mV
PV Units pH / mV
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI pH/mV:pH/mV
Document ID 109350.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Phosphate-HL Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Phosphate 1 ..............................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 ÷ 5 Phosphate 1 ÷ 6 ................................................................................8
5.2 Device Variable 7 Main Flow ..............................................................................................8
5.3 Device Variable 8 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
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7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
13. Capability Checklist .......................................................................................................................18
Annex A. Default Configuration ........................................................................................................19
Annex B. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Phosphate-HL transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Phosphate-HL manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Phosphate_HL_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Phosphate-
HL
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58189 (E34D Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 8
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Phosphate-HL HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Phosphate-HL manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Phosphate 1 The 4 to 20mA output of the AMI Phosphate-HL HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Phosphate 1
- Phosphate 2
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Phosphate-HL manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes eight Device Variables
Device Variables Variables Meaning Units 0 Phosphate 1 ppm
1 Phosphate 2 ppm
2 Phosphate 3 ppm
3 Phosphate 4 ppm
4 Phosphate 5 ppm
5 Phosphate 6 ppm
6 Main Flow B/s
7 Case Temperature °C
5.1 Device Variable 0 ÷ 5 Phosphate 1 ÷ 6 Phosphate 1÷6 are read by FOME sensor (Refer to AMI Phosphate-HL manual to details on it).
5.2 Device Variable 7 Main Flow Main Flow is read by the Bubble Detector (Refer to AMI Phosphate-HL manual to details on it).
5.3 Device Variable 8 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Two mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Phosphate 1 – Phosphate 2 ppm
SV Phosphate 1 – Phosphate 2 ppm
It is possible to associate these dynamic variables both to PV or SV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Phos. 1 Alarm high E001 1 Phos. 1 Alarm low E002 2 Phos. 2 Alarm high E003 3 Phos. 2 Alarm low E004 4 Absorbance too high E005 5 Reserved 6 Reserved 7 Reserved 8 Sample Flow high E009 9 Sample Flow low E010
10 Reserved 11 Reserved 12 Case Temp. high E013 13 Case Temp. low E014 14 Valve defective E015 15 Reserved 16 Control Timeout E017 17 Reagent Pump E018 18 FOME not connected E019 19 FOME dirty E020 20 Sequencer E021 21 Reagent empty E022 22 Cleaning Solution E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 Reagents Low E065 1 Reserved 2 Cleaning Solution E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
14-17 (INT32)
0 Sample Flow 1 low E033 1 Sample Flow 2 low E034 2 Sample Flow 3 low E035 3 Sample Flow 4 low E036 4 Sample Flow 5 low E037 5 Sample Flow 6 low E038 6 Sample Flow low E039 7 Reserved 8 Reagents low E041 9 Reserved 10 Cleaning Solution E043
11-31 Reserved "Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV and SV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV and SV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second 240 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Flow rate sensor value sample 1 per second
Phosphate sensor value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Phosphate-HL rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 3 (two external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 8
Number of Dynamic Variables 2
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Phosphate 1
Lower Range Value 0 ppm
Upper Range Value 10 ppm
PV Units Ppm
Damping time constant 0.796 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Phosphate-HL
Document ID 109362.00
Document Revision
Date Device Revision DD Revision Description
1.0 28/06/2016 1 1 First release, for HART 7.x Device
HART® 7.x Field Device Specification for AMI pH-Redox Transmitters
SWAN Analytical Instruments
8340, Studbachstrasse 13
Hinwil
Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................7
5.1 Device Variable 0 Measured Value .....................................................................................8
5.2 Device Variable 1 Flow Rate ...............................................................................................8
5.3 Device Variable 2 Temperature ...........................................................................................8
5.4 Device Variable 3 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
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7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Type Unit Codes .........................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
Annex A. Capability Checklist ...........................................................................................................17
Annex B. Default Configuration ........................................................................................................18
Annex C. Revision History ................................................................................................................19
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1. INTRODUCTION
1.1 Scope The SWAN Analytical Instruments model AMI pH-Redox transmitter complies with HART Protocol
Revision 7.5. This document specifies all the device specific features and documents HART
Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of
this Field Device is described sufficiently to allow its proper application in a process and its
complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to compliment the AMI pH-Redox manual by providing a complete
description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application
Developers, System Integrators and knowledgeable End Users. It also provides functional
specifications (e.g., commands and performance requirements) used during development,
maintenance and testing. This document assumes the reader is familiar with HART Protocol
requirements and terminology.
1.4 References
HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the
HCF.
MenAMI_pH-Redox_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION
Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI pH-Redox
Manufacturer ID Code: 24757 (60B5
Hex) Device Type
Code:
58152 (E328
Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 4
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW
The pH-Redox HART communication option board provides a 4 to 20mA output signal and can be
monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections
3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with
HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the
instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with
HART.
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4. PRODUCT INTERFACES
4.1 Process Interface
4.1.1 Sensor Input Channels
Refer to AMI pH-Redox manual to details on mounting pH, Redox, Temperature and Flow sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI pH-Redox HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Measured Value (pH or Redox)
- Temperature
- Flow Rate
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 /
Parameter” settings.
4.3 Local Interfaces
4.3.1 Local Controls and Displays
This device has a local display that allows the complete configurability of the instrument.
Refer to AMI pH-Redox manual to details on it.
4.3.2 Write Protection
The Field Device has no “Write protection mode”.
5. DEVICE VARIABLES This Field Device exposes four Device Variables
Device Variables Variables Meaning Units
0 Measured Value pH / Redox
1 Flow Rate l/h
2 Temperature °C
3 Case Temperature °C
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5.1 Device Variable 0 Measured Value Measured Value corresponds to pH [pH] or Redox [mV], based on the instrument mounted (Refer to
AMI pH-Redox manual for additional details).
5.2 Device Variable 1 Flow Rate Flow Rate is read by the Flow sensor, when mounted (Refer to AMI pH-Redox manual for additional
details).
5.3 Device Variable 2 Temperature Temperature is read by the Temperature sensor, when mounted (Refer to AMI pH-Redox for
additional details).
5.4 Device Variable 3 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES
6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV pH/Redox - Flow Rate - Temperature pH/mV - l/h - °C
SV pH/Redox - Flow Rate - Temperature pH/mV - l/h - °C
TV pH/Redox - Flow Rate - Temperature pH/mV - l/h - °C
It is possible to associate any of these dynamic variables to PV, SV, or TV, with a HART Master (or
Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the
following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION
7.1 Field Device Status
The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their
implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available
Set if any Alarm or Maintenance has changed its status. More
information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not
responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint
limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits
A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15
min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the
following conditions:
Hi/low limited (Limit Status)
Bad (Process Data Status)
Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 4 additional bytes of data (Int32 Little Endian), with the following status
information:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Alarm high E001
1 Alarm low E002
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Sample Temp. high E007
7 Sample Temp. low E008
8 Sample Flow high
E009
9 Sample Flow low
E010
10 Temp. shorted E011
11 Temp. disconnected E012
12 Case Temp. high E013
13 Case Temp. low E014
14 Reserved
15 Reserved
16 Control Timeout E017
17 Quality Assurance E018
18 Reserved
19 Reserved
20 Reserved
21 Reserved
22 Reserved
23 Input active E024
24 IC MK41T56
E025
25 IC LM75
E026
26 IC PCF8574
E027
27 Signal output open
E028
28 EEPROM Motherboard
E029
29 EEPROM Frontend
E030
30 Cal. Recout
E031
31 Wrong Frontend
E032
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device or sensor failure, and always set bit 4 of the Device Status
byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information
of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range
Returns AO value and % range
3 Read Dynamic Variables and Loop Current
Returns PV, SV and TV
values and corresponding unit
values along with AO value
6 Write Polling Address Changes Field Device’s
polling address and loop
current mode
7 Read Loop Configuration Returns polling address and
loop current mode status
8 Read Dynamic Variable Classifications
Returns dynamic variables
classification
9 Read Device Variables with Status Returns device variables with
status
11 Read Unique Identifier Associated With Tag
Same response as command 0
when Tag matches
12 Read Message Returns 24 bytes of packed
ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor
(packed ASCII format) and
date from the device
14 Read Primary Variable Transducer Information
Returns PV transducer limits
and span
15 Read Device Information Returns PV unit value, LRV,
URV, damping value and
write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed
ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed
ASCII format) and date to the
device
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19 Write Final Assembly Number Writes final assembly number
to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0
when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field
Device
38 Reset Configuration Changed Flag Resets the configuration
change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported
Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers
associated with PV, SV and TV
51 Write Dynamic Variable Assignment
Writes the Variable Numbers
associated with PV, SV and TV
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11. TABLES
11.1 Engineering Type Unit Codes
Units of Measurement Unit Code
Temperature Degrees Celsius 32
Electric Potential millivolts 36
Electric Resistance Ω 37
Miscellaneous Hertz 38
Electric Current milliamperes 39
Time Minutes 50
Time Seconds 51
Time Hours 52
Time Days 53
Miscellaneous Percent 57
Electric Potential Volts 58
Miscellaneous pH 59
Miscellaneous Micro Siemens per centimeter 67
Flow Liters per hour 138
Concentration Parts per million 139
Electric Resistance kΩ 163
Concentration Parts per billion 169
Not used 250
Special 253
11.2 Classification Type Unit Codes
Measurement Meas. Code
Temperature 64
Volumetric flow 66
Time 70
Frequency 80
Analytical 81
Electric Potential 83
Current 84
Resistance 85
Conductance 87
Concentration 90
Turbidity 97
Not used 250
Special 253
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12. PERFORMANCE
12.1 Sampling Rates Typical sampling rates are shown in the following table.
pH sensor value sample 1 per second
Redox sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Case Temperature sensor sample 1 per second
Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending
on the measured variable. The Damping Value is different for each of the Device Variables, and can
be read with command 15.
12.2 Power-Up On power up, the transmitter takes approximately 8 seconds to be ready. During this period, the
device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to command 9: up to 71 bytes including the two status
bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory
immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytical Instruments, AMI pH-Redox rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 4
Number of Dynamic Variables 3
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
Sensor Type pH or Redox (depends on the sensor mounted)
Lower Range Value 0.0 pH / 0mV
Upper Range Value 14.0 pH / 1000mV
PV Units pH / mV
Damping time constant 4.77 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI pH-Redox
Document ID 109349.00
Document
Revision
Date Device Revision DD Revision Description
1.0 24/06/2016 1 1 First release, for
HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Powercon Transmitters
SWAN Analytical Instruments
8340, Studbachstrasse 13
Hinwil
Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Conductivity ...........................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Uncompensated Conductivity ................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Type Unit Codes .........................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................17
Annex A. Capability Checklist ...........................................................................................................18
Annex B. Default Configuration ........................................................................................................19
Annex C. Revision History ................................................................................................................20
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1. INTRODUCTION
1.1 Scope The SWAN Analytical Instruments model AMI Powercon transmitter complies with HART Protocol
Revision 7.5. This document specifies all the device specific features and documents HART
Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of
this Field Device is described sufficiently to allow its proper application in a process and its
complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Powercon manual by providing a complete
description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application
Developers, System Integrators and knowledgeable End Users. It also provides functional
specifications (e.g., commands and performance requirements) used during development,
maintenance and testing. This document assumes the reader is familiar with HART Protocol
requirements and terminology.
1.4 References
HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the
HCF.
MenAMI_ Powercon _xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION
Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Powercon
Manufacture ID Code: 24757 (60B5
Hex) Device Type
Code:
58150 (E326
Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW
The AMI Powercon HART communication option board provides a 4 to 20mA output signal and can
be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections
3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with
HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the
instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with
HART.
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4. PRODUCT INTERFACES
4.1 Process Interface
4.1.1 Sensor Input Channels
Refer to AMI Powercon manual to details on mounting Conductivity and Flow sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Powercon HART option board represents a process value
measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Conductivity
- Temperature
- Flow rate
- Uncompensated Conductivity
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 /
Parameter” settings.
4.3 Local Interfaces
4.3.1 Local Controls and Displays
This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Powercon manual to details on it.
4.3.2 Write Protection
The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units
0 Conductivity uS/cm
1 Temperature °C
2 Flow Rate l/h
3 Uncomp. Conductivity uS/cm
4 Case Temperature °C
5.1 Device Variable 0 Conductivity The Conductivity is read by the Slot-lock or Cation Conductivity sensor (Refer to AMI Powercon
manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the temperature sensor inside the Conductivity sensor (Refer to AMI
Powercon manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Powercon manual to details on it).
5.4 Device Variable 3 Uncompensated Conductivity Uncomp. Conductivity is read by the Conductivity sensor.
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES
6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV
Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
SV
Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
TV
Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
QV
Conductivity– Temperature – Flow Rate –
Uncomp_ Cond. uS/cm - °C – l/h – uS/cm
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master
(or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the
following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION
7.1 Field Device Status
The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their
implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available
Set if any Alarm or Maintenance has changed its status. More
information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not
responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint
limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits
A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15
min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the
following conditions:
Hi/low limited (Limit Status)
Bad (Process Data Status)
Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following
status information:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Cond. Alarm high E001
1 Cond. Alarm low E002
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Sample Temp. high E007
7 Sample Temp. low E008
8 Sample Flow high
E009
9 Sample Flow low
E010
10 Temp. shorted E011
11 Temp. disconnected E012
12 Case Temp. high E013
13 Case Temp. low E014
14 Reserved
15 Reserved
16 Control Timeout E017
17 Quality Assurance E018
18 Undefined E019
19 Reserved
20 Reserved
21 Reserved
22 Reserved
23 Input active E024
24 IC MK41T56
E025
25 IC LM75
E026
26 IC PCF8574
E027
27 Signal output open
E028
28 EEProm Motherboard
E029
29 EEProm Frontend
E030
30 Cal. Recout
E031
31 Wrong Frontend
E032
"Reserved" bits are always set to 0.
All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device
Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information
of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range
Returns AO value and % range
3 Read Dynamic Variables and Loop Current
Returns PV, SV, TV and QV
values and corresponding unit
values along with AO value
6 Write Polling Address Changes Field Device’s
polling address and loop
current mode
7 Read Loop Configuration Returns polling address and
loop current mode status
8 Read Dynamic Variable Classifications
Returns dynamic variables
classification
9 Read Device Variables with Status Returns device variables with
status
11 Read Unique Identifier Associated With Tag
Same response as command 0
when Tag matches
12 Read Message Returns 24 bytes of packed
ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor
(packed ASCII format) and
date from the device
14 Read Primary Variable Transducer Information
Returns PV transducer limits
and span
15 Read Device Information Returns PV unit value, LRV,
URV, damping value and
write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed
ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed
ASCII format) and date to the
device
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19 Write Final Assembly Number Writes final assembly number
to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0
when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field
Device
38 Reset Configuration Changed Flag Resets the configuration
change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported
Device Variables
50 Read Dynamic Variable Assignment
Returns the Variable Numbers
associated with PV, SV,TV and
QV
51 Write Dynamic Variable Assignment
Writes the Variable Numbers
associated with PV, SV,TV and
QV
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11. TABLES
11.1 Engineering Type Unit Codes
Units of Measurement Unit Code
Temperature Degrees Celsius 32
Electric Potential millivolts 36
Electric Resistance Ω 37
Miscellaneous Hertz 38
Electric Current milliamperes 39
Time Minutes 50
Time Seconds 51
Time Hours 52
Time Days 53
Miscellaneous Percent 57
Electric Potential Volts 58
Miscellaneous pH 59
Miscellaneous Micro Siemens per centimeter 67
Flow Liters per hour 138
Concentration Parts per million 139
Electric Resistance kΩ 163
Concentration Parts per billion 169
Not used 250
Special 253
11.2 Classification Type Unit Codes
Measurement Meas. Code
Temperature 64
Volumetric flow 66
Time 70
Frequency 80
Analytical 81
Electric Potential 83
Current 84
Resistance 85
Conductance 87
Concentration 90
Turbidity 97
Not used 250
Special 253
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12. PERFORMANCE
12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Uncompensated conductivity value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending
on the measured variable. The Damping Value is different for each of the Device Variables, and can
be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the
device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status
bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory
immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
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12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Powercon rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Conductivity
Lower Range Value 0 uS/cm
Upper Range Value 300000 uS/cm
PV Units uS/cm
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Powercon
Document ID 109346.00
Document
Revision
Date Device Revision DD Revision Description
1.0 10/03/2016 1 1 First release, for
HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Rescon Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Resistivity - Conductivity ......................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Uncomp. Res./Cond. ..............................................................................8
5.5 Device Variable 4 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Unit Type Unit Codes ........................................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
Annex A. Capability Checklist ...........................................................................................................17
Annex B. Default Configuration ........................................................................................................18
Annex C. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Rescon transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Rescon manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Rescon_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Rescon
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58190 (E34E Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 5
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Rescon HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Rescon manual to details on mounting Conductivity and Flow sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Rescon HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Resistivity / Conductivity
- Temperature
- Flow rate
- Uncompensated Resistivity / Uncompensated Conductivity
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Rescon manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units 0 Resistivity-Conductivity MΩ - uS/cm
1 Temperature °C
2 Flow Rate l/h
3 Uncomp. Resistivity –
Uncomp. Conductivity MΩ - uS/cm
4 Case Temperature °C
5.1 Device Variable 0 Resistivity - Conductivity The Resistivity - Conductivity is read by Conductivity sensor RC-U [A] (Refer to AMI Rescon manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the temperature sensor inside the Conductivity sensor RC-U [A] (Refer to AMI Rescon manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Rescon manual to details on it).
5.4 Device Variable 3 Uncomp. Res./Cond. Uncomp. Resistivity – Uncomp. Conductivity is read by the Conductivity sensor RC-U[A].
5.5 Device Variable 4 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Res./Cond– Temperature – Flow Rate –
Uncomp_ Res/Cond. MΩ,uS/cm - °C – l/h –
MΩ,uS/cm
SV Res./Cond– Temperature – Flow Rate –
Uncomp_ Res/Cond. MΩ,uS/cm - °C – l/h –
MΩ,uS/cm
TV Res./Cond– Temperature – Flow Rate –
Uncomp_ Res/Cond. MΩ,uS/cm - °C – l/h –
MΩ,uS/cm
QV Res./Cond– Temperature – Flow Rate –
Uncomp_ Res/Cond. MΩ,uS/cm - °C – l/h –
MΩ,uS/cm
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 4 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Alarm high E001 1 Alarm low E002 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 USP Error E015 15 Reserved 16 Control Timeout E017 17 Reserved 18 Sensor shorted E019 19 Sensor interrupted E020 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Electric Resistance MΩ 170 Not used 250 Special 253
11.2 Unit Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Resistivity-Conductivity sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Uncompensated Resistivity-Conductivity value sample
1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Rescon rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 5
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Resistivity
Lower Range Value 0 MΩ
Upper Range Value 200 MΩ
PV Units MΩ
Damping time constant 3.185 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Rescon
Document ID 109363.00
Document Revision
Date Device Revision DD Revision Description
1.0 28/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI SAC 254 Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
SWAN Analytical Instruments AMI SAC 254 HART Manual
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Spectral Absorption Coefficient (SAC 254) ............................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 SAC 254 .................................................................................................8
5.2 Device Variable 1 UVT .......................................................................................................8
5.3 Device Variable 2 Concentration .........................................................................................8
5.4 Device Variable 3 Flow Rate ...............................................................................................8
5.5 Device Variable 4 Heater Temperature ................................................................................8
5.6 Device Variable 5 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................8
6.1 Mappable Variables .............................................................................................................8
6.2 PV Transfer Functions .........................................................................................................9
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7. Status Information ............................................................................................................................9
7.1 Field Device Status ..............................................................................................................9
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Unit Codes ..................................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................17
13. Capability Checklist .......................................................................................................................17
Annex A. Default Configuration ........................................................................................................18
Annex B. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI SAC 254 transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI SAC 254 manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_SAC254_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI SAC 254
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58247 (E387 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 6
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI SAC 254 HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI SAC 254 manual to details on mounting external sensors.
4.2 Host Interface 4.2.1 Process Spectral Absorption Coefficient (SAC 254) The 4 to 20mA output of the AMI SAC 254 HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- SAC 254 Value
- UV Transmission
- Concentration
- Flow Rate
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI SAC 254 manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes six Device Variables
Device Variables Variables Meaning Units
0 SAC 254 1/cm 1 UV Transmission % 2 Concentration ppb 3 Flow Rate l/h 4 Heater Temperature °C 5 Case Temperature °C
5.1 Device Variable 0 SAC 254 SAC 254 is obtained using a photometer sensor (Refer to AMI SAC 254 manual to details on it).
5.2 Device Variable 1 UVT UV Transmission is calculated starting from SAC 254 value (Refer to AMI SAC 254 manual to details on it).
5.3 Device Variable 2 Concentration Concentration is calculated starting from SAC 254 value (Refer to AMI SAC 254 manual to details on it).
5.4 Device Variable 3 Flow Rate Flow rate is derived from a pressure sensor.
5.5 Device Variable 4 Heater Temperature Heater Temperature shows the Temperature of the heater.
5.6 Device Variable 5 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV SAC – UVT – Conc. – Flow 1/cm - % - ppb – l/h
SV SAC – UVT – Conc. – Flow 1/cm - % - ppb – l/h
TV SAC – UVT – Conc. – Flow 1/cm - % - ppb – l/h
QV SAC – UVT – Conc. – Flow 1/cm - % - ppb – l/h
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It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
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7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Code
0-3 (INT32)
0 SAC 254 Alarm high E001 1 SAC 254 Alarm low E002 2 UV Transm. Alarm high E003 3 UV Transm. Alarm low E004 4 Conc. Alarm high E005 5 Conc. Alarm low E006 6 Reserved 7 No Sample Flow E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Turbidity Correction E011 11 Concentration Offset E012 12 Case Temp. high E013 13 Case Temp. low E014 14 MV disconnected E015 15 Invalid measurement E016 16 Control Timeout E017 17 SAC disconnected E018 18 Temp. out of range E019 19 Heater Temp. low E020 20 Press. Sens. Error E021 21 Absorbance high E022 22 Cleaning Solution E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4 – 7
(INT32)
0 Cuvette dirty E065 1 Reserved 2 Cleaning Solution E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
4-5 (INT16U)
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
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7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second 240 Spectral Absorption Coefficient (SAC 254) 243 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Photometer sensor value sample 2 per second
Temperature sensor value sample 2 per second
Pressure sensor value sample 2 per second
Heater Temperature sensor value 2 per second
Case Temperature sensor value sample 1 per second
Note: some of the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
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12.8 Damping Damping time is calculated for each dynamic variable.
13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI SAC 254 rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 6
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Photometer (SAC 254)
Lower Range Value 0 cm-1
Upper Range Value 2 cm-1
PV Units cm-1
Damping time constant 0.5 s
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI SAC 254
Document ID 109687.00
Document Revision
Date Device Revision DD Revision Description
1.0 19/09/2017 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Silica Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Silica 1 .....................................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Temperature ...........................................................................................8
5.2 Device Variable 1 Flow .......................................................................................................8
5.3 Device Variable 2 ÷ 7 Silica 1 ÷ 6 .......................................................................................8
5.4 Device Variable 8 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
13. Capability Checklist .......................................................................................................................18
Annex A. Default Configuration ........................................................................................................19
Annex B. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Silica transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Silica manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Silica_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Silica
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58191 (E34F Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 9
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Silica HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Silica manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Silica 1 The 4 to 20mA output of the AMI Silica HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Silica 1
- Main Temperature
- Main Flow
- Silica 2
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Silica manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes nine Device Variables
Device Variables Variables Meaning Units 0 Main Temperature °C
1 Main Flow B/s
2 Silica 1 ppb
3 Silica 2 ppb
4 Silica 3 ppb
5 Silica 4 ppb
6 Silica 5 ppb
7 Silica 6 ppb
8 Case Temperature °C
5.1 Device Variable 0 Temperature Temperature is read inside the FOME sensor (Refer to AMI Silica manual to details on it).
5.2 Device Variable 1 Flow Main Flow is read by the Bubble Detector (Refer to AMI Silica manual to details on it).
5.3 Device Variable 2 ÷ 7 Silica 1 ÷ 6 Silica 1 ÷ 6 are read by FOME sensor (Refer to AMI Silica manual to details on it).
5.4 Device Variable 8 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Silica 1 - Temperature - Flow Rate - Silica 2 ppb - °C - B/s - ppb
SV Silica 1 - Temperature - Flow Rate - Silica 2 ppb - °C - B/s - ppb
TV Silica 1 - Temperature - Flow Rate - Silica 2 ppb - °C - B/s - ppb
QV Silica 1 - Temperature - Flow Rate - Silica 2 ppb - °C - B/s - ppb
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Si 1 Alarm high E001 1 Si 1 Alarm low E002 2 Si 2 Alarm high E003 3 Si 2 Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Reserved 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Valve defective E015 15 Reserved 16 Control Timeout E017 17 Reagent Pump E018 18 FOME not connected E019 19 FOME dirty E020 20 Reserved 21 Reagent empty E022 22 Sequencer E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 Rovalve E030 30 Cal. Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 Reagents Low E065 1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
14-17 (INT32)
0 Sample Flow 1 low E033 1 Sample Flow 2 low E034 2 Sample Flow 3 low E035 3 Sample Flow 4 low E036 4 Sample Flow 5 low E037 5 Sample Flow 6 low E038 6 Sample Flow low E039
7-31 Reserved "Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second 240 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Silica 1 sensor value sample 1 per second
Silica 2 value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Silica rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 9
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Silica 1
Lower Range Value 0 ppb
Upper Range Value 5000 ppb
PV Units ppb
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Silica
Document ID 109364.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Silitrace Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Silica 1 .....................................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Flow .......................................................................................................8
5.2 Device Variable 1 ÷ 6 Silica 1 ÷ 6 .......................................................................................8
5.3 Device Variable 7 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
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7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Default Configuration ..........................................................................................................................18
Annex A. Default Configuration ........................................................................................................19
Annex B. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Silitrace transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Silitrace manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Silitrace_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Silitrace
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58192 (E350 Hex)
HART Protocol Revision 7.5 Device Revision: 2
Number of Device Variables 8
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Silitrace HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Silitrace manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Silica 1 The 4 to 20mA output of the AMI Silitrace HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Silica 1
- Flow
- Silica 2
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Silitrace manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes eight Device Variables
Device Variables Variables Meaning Units 0 Flow l/h
1 Silica 1 ppb
2 Silica 2 ppb
3 Silica 3 ppb
4 Silica 4 ppb
5 Silica 5 ppb
6 Silica 6 ppb
7 Case Temperature °C
5.1 Device Variable 0 Flow Flow is read by the flow sensor (Refer to AMI Silitrace manual to details on it).
5.2 Device Variable 1 ÷ 6 Silica 1 ÷ 6 Silica 1 ÷ 6 are read by FOME sensor (Refer to AMI Silitrace manual to details on it).
5.3 Device Variable 7 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Silica 1 – Flow – Silica 2 ppb – l/h – ppb
SV Silica 1 – Flow – Silica 2 ppb – l/h – ppb
TV Silica 1 – Flow – Silica 2 ppb – l/h – ppb
It is possible to associate any of these dynamic variables to PV, SV or TV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 10 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS / MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Si 1 Alarm high E001 1 Si 1 Alarm low E002 2 Si 2 Alarm high E003 3 Si 2 Alarm low E004 4 Reserved 5 Reserved 6 SilTrace Temp. high E007 7 SilTrace Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Absorbance too high E011 11 Temp. Timeout E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Pump Speed high E015 15 Pump Speed low E016 16 Control Timeout E017 17 Reagent Pump E018 18 SilTrace E019 19 FOME dirty E020 20 Signal Timeout E021 21 Reagent empty E022 22 Sequencer E023 23 Input active E024 24 Rovalve E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Cal. Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 Reagents Low E065 1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
14-17 (INT32)
0 Sample Flow 1 low E033 1 Sample Flow 2 low E034 2 Sample Flow 3 low E035 3 Sample Flow 4 low E036 4 Sample Flow 5 low E037 5 Sample Flow 6 low E038 6 Reserved 7 Reserved
8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved … … 31 Reserved
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV and TV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV and TV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV and TV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Flow sensor value sample 1 per second
Silica 1-6 sensor value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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DEFAULT CONFIGURATION
Manufacturer, model and revision SWAN Analytic Instruments, AMI Silitrace rev. 2
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 8
Number of Dynamic Variables 3
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 80
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Silica 1
Lower Range Value 0 ppb
Upper Range Value 1000 ppb
PV Units ppb
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Silitrace
Document ID 109365.01
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
2.0 23/12/2016 2 1 Flow 2 removed
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Silitrace Ultra Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Silitrace Ultra 1 ........................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Silica ......................................................................................................8
5.2 Device Variable 1 Flow Permeate .......................................................................................8
5.3 Device Variable 2 Flow Concentrate ...................................................................................8
5.4 Device Variable 3 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Annex A. Default Configuration ........................................................................................................19
Annex B. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Silitrace Ultra transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Silitrace Ultra manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_SilitraceUltra_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Silitrace Ultra
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58193 (E351 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 4
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Silitrace Ultra HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Silitrace Ultra manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Silitrace Ultra 1 The 4 to 20mA output of the AMI Silitrace Ultra HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Silica
- Flow permeate
- Flow Concentrate
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Silitrace Ultra manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes four Device Variables
Device Variables Variables Meaning Units 0 Silica ppb
1 Flow permeate l/h
2 Flow concentrate l/h
3 Case Temperature °C
5.1 Device Variable 0 Silica Silica is calculated by means of the photometer (Refer to AMI Silitrace Ultra manual to details on it).
5.2 Device Variable 1 Flow Permeate Flow permeate is read by means of flow meter high (Refer to AMI Silitrace Ultra manual to details on it).
5.3 Device Variable 2 Flow Concentrate Flow concentrate is read by means of flow meter low (Refer to AMI Silitrace Ultra manual to details on it).
5.4 Device Variable 3 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Silica – Flow permeate – Flow concentrate ppb – l/h – l/h
SV Silica – Flow permeate – Flow concentrate ppb – l/h – l/h
TV Silica – Flow permeate – Flow concentrate ppb – l/h – l/h
It is possible to associate any of these dynamic variables to PV, SV or TV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS / MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Silica high E001 1 Silica low E002 2 Flow Permeate high E003 3 Flow Permeate low E004 4 Flow Concentrate high E005 5 Flow Concentrate low E006 6 SilTrace Temp. high E007 7 SilTrace Temp. low E008 8 Reserved 9 Reserved 10 Absorbance too high E011 11 Temp. Timeout E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Pump Speed high E015 15 Pump Speed low E016 16 Control Timeout E017 17 Reagent Pump E018 18 SilTrace E019 19 FOME dirty E020 20 Signal Timeout E021 21 Reagent empty E022 22 Reserved 23 Input active E024 24 Rovalve E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Cal. Recout E031 31 Silica high E032
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4-5 (INT16)
0 Reagents Low E065 1 Reserved 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV and TV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV and TV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV and TV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Not used 250 Special 253
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Silica value sample 1 per second
Flow rate sensors value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable. Capability Checklist
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Manufacturer, model and revision SWAN Analytic Instruments, AMI Silitrace Ultra rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 4
Number of Dynamic Variables 3
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Silitrace Ultra
Lower Range Value 0 ppb
Upper Range Value 50 ppb
PV Units ppb
Damping time constant 4.777 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Silitrace Ultra
Document ID 109366.00
Document Revision
Date Device Revision DD Revision Description
1.0 16/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Sodium Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Sodium 1 ..................................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Sodium 1 ................................................................................................8
5.2 Device Variable 1 Sodium 2 ................................................................................................8
5.3 Device Variable 2 pH ...........................................................................................................8
5.4 Device Variable 3 Temperature ...........................................................................................8
5.5 Device Variable 4 Sample flow / pH Ctl .............................................................................8
5.6 Device Variable 5 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
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7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
13. Capability Checklist .......................................................................................................................18
Annex A. Default Configuration ........................................................................................................19
Annex B. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Sodium transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Sodium manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Sodium_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Sodium
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58194 (E352 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 6
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Sodium HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Sodium manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Sodium 1 The 4 to 20mA output of the AMI Sodium HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Sodium 1
- Sodium 2
- pH
- Temperature
- Sample flow / pH Ctl.
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Sodium manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes six Device Variables
Device Variables Variables Meaning Units 0 Sodium 1 ppb
1 Sodium 2 ppb
2 pH pH
3 Temperature °C
4 Sample flow / pH Ctl B/s - %
5 Case Temperature °C
5.1 Device Variable 0 Sodium 1 Sodium 1 is read by means of the Sodium Electrode (Refer to AMI Sodium manual to details on it).
5.2 Device Variable 1 Sodium 2 Sodium 2 is read by means of the Sodium Electrode (Refer to AMI Sodium manual to details on it).
5.3 Device Variable 2 pH pH is read by means of the pH Electrode (Refer to AMI Sodium manual to details on it).
5.4 Device Variable 3 Temperature Temperature is read with the Temperature sensor.
5.5 Device Variable 4 Sample flow / pH Ctl Flow is read by means of the Flow cell (Refer to AMI Sodium manual to details on it) and is read in bubbles per second.
5.6 Device Variable 5 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Sodium 1 – Sodium 2 – pH – Temperature –
Flow [pH Ctl] ppb–ppb–pH–°C–B/s[%]
SV Sodium 1 – Sodium 2 – pH – Temperature –
Flow [pH Ctl] ppb–ppb–pH–°C–B/s[%]
TV Sodium 1 – Sodium 2 – pH – Temperature –
Flow [pH Ctl] ppb–ppb–pH–°C–B/s[%]
QV Sodium 1 – Sodium 2 – pH – Temperature –
Flow [pH Ctl] ppb–ppb–pH–°C–B/s[%]
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS - MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Sodium 1 Alarm high E001 1 Sodium 1 Alarm low E002 2 pH Alarm high E003 3 pH Alarm low E004 4 Sodium 2 Alarm high E005 5 Sodium 2 Alarm low E006 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 undefined E015 15 undefined E016 16 Control Timeout E017 17 Reagent empty E018 18 No Sample E019 19 pH low E020 20 undefined E021 21 undefined E022 22 Cleaning Reagent E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4-5 (INT16)
0 Photometer dirty E065 1 Filter congested E066 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Bubbles per second (custom) 240 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Sodium 1 sensor value sample 1 per second
Sodium 2 value sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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13. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Sodium rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 7 (six external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 6
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX A. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Sodium 1
Lower Range Value 0 ppb
Upper Range Value 50000 ppb
PV Units ppb
Damping time constant 28.662 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX B. REVISION HISTORY
Document Title HART Interface Description AMI Sodium
Document ID 109367.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Solicon 4 Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Process Flow Rate 4-20mA Analog Output .........................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Conductivity ...........................................................................................8
5.2 Device Variable 1 Temperature ...........................................................................................8
5.3 Device Variable 2 Flow Rate ...............................................................................................8
5.4 Device Variable 3 Uncompensated Conductivity ................................................................8
5.5 Device Variable 4 Concentration .........................................................................................8
5.6 Device Variable 5 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
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7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Type Unit Codes .........................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Annex A. Capability Checklist ...........................................................................................................18
Annex B. Default Configuration ........................................................................................................19
Annex C. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Solicon 4 transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Solicon 4 manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Solicon_4_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Solicon 4
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58181 (E345 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 6
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Solicon 4 HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Solicon 4 manual to details on mounting external sensors.
4.2 Process Flow Rate 4-20mA Analog Output The 4 to 20mA output of the AMI Solicon 4 HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Conductivity
- Temperature
- Flow rate
- Concentration
- Uncompensated Conductivity
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Solicon 4 manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes five Device Variables
Device Variables Variables Meaning Units 0 Conductivity uS/cm
1 Temperature °C
2 Flow Rate l/h
3 Uncomp. Conductivity uS/cm
4 Concentration % - mg/l
5 Case Temperature °C
5.1 Device Variable 0 Conductivity The Conductivity is read by the Conductivity sensor Swansensor Shurecon P (Refer to AMI Solicon 4 manual to details on it).
5.2 Device Variable 1 Temperature Temperature is read by the temperature sensor inside the Conductivity sensor (Refer to AMI Solicon 4 manual to details on it).
5.3 Device Variable 2 Flow Rate Flow Rate is read by the Flow sensor (Refer to AMI Solicon 4 manual to details on it).
5.4 Device Variable 3 Uncompensated Conductivity Uncomp. Conductivity is read by the Conductivity sensor.
5.5 Device Variable 4 Concentration Concentration is calculated based on the conductivity (Refer to AMI Solicon 4 manual to details on it).
5.6 Device Variable 5 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Four mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Conductivity– Temperature – Flow Rate –
Uncomp. Cond. - Concentration uS/cm - °C – l/h – uS/cm -
% or mg/l
SV Conductivity– Temperature – Flow Rate –
Uncomp. Cond. - Concentration uS/cm - °C – l/h – uS/cm -
% or mg/l
TV Conductivity– Temperature – Flow Rate –
Uncomp. Cond. - Concentration uS/cm - °C – l/h – uS/cm -
% or mg/l
QV Conductivity– Temperature – Flow Rate –
Uncomp. Cond. - Concentration uS/cm - °C – l/h – uS/cm -
% or mg/l
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Cond. Alarm high E001 1 Cond. Alarm low E002 2 Conc. Alarm high E003 3 Conc. Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 Reserved 15 Reserved 16 Control Timeout E017 17 Temp. out of Table E018 18 Conc. out of Table E019 19 Reserved 20 Reserved 21 Reserved 22 Reserved 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
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All bits used in this four bytes indicate device or sensor failure, and always set bit 4 of the Device Status byte.
MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
4-5 (INT16)
0 Photometer dirty E065 1 Filter congested E066 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved
10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS
9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV,TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV,TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Miscellaneous Micro Siemens per centimeter 67 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Milligram per liter (custom) 242 Not used 250
11.2 Classification Type Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Conductivity sensor value sample 1 per second
Temperature sensor value sample 1 per second
Flow rate sensor value sample 1 per second
Uncompensated conductivity value sample 1 per second
Concentration 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A. CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Solicon 4 rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 4 (three external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 6
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Conductivity
Lower Range Value 0 uS/cm
Upper Range Value 300000 uS/cm
PV Units uS/cm
Damping time constant 1.592 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Solicon 4
Document ID 109345.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Trides Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
SWAN Analytical Instruments AMI Trides HART Manual
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Sodium .....................................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Disinfectant ............................................................................................8
5.2 Device Variable 1 pH / Redox .............................................................................................8
5.3 Device Variable 2 Temperature ...........................................................................................8
5.4 Device Variable 3 Flow rate ................................................................................................8
5.5 Device Variable 4 Hypochlorus acid ...................................................................................8
5.6 Device Variable 5 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
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7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................12
9. Common-Practice Commands .......................................................................................................14
9.1 Supported Common Practice Commands ..........................................................................14
9.2 Burst Mode .........................................................................................................................14
9.3 Catch Device Variable .......................................................................................................14
10. Device-Specific Commands ...........................................................................................................14
11. Tables 15
11.1 Engineering Type Unit Codes ............................................................................................15
11.2 Classification Unit Codes ..................................................................................................15
12. Performance ...................................................................................................................................16
12.1 Sampling Rates ..................................................................................................................16
12.2 Power-Up ...........................................................................................................................16
12.3 Command Response Times................................................................................................16
12.4 Long Messages ...................................................................................................................16
12.5 Non-Volatile Memory ........................................................................................................16
12.6 Modes .................................................................................................................................16
12.7 Write Protection .................................................................................................................16
12.8 Damping .............................................................................................................................16
Annex B. Default Configuration ........................................................................................................18
Annex C. Revision History ................................................................................................................19
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Trides transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Trides manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Trides_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Trides
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58197 (E355 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 6
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Trides HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Trides manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Sodium The 4 to 20mA output of the AMI Trides HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Disinfectant
- pH/Redox
- Temperature
- Flow rate
- Hypochlorus acid
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Trides manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes four Device Variables
Device Variables Variables Meaning Units 0 Disinfectant ppm
1 pH/Redox pH/mV
2 Temperature °C
3 Flow rate rpm
4 Hypochlorus acid ppm
5 Case Temperature °C
5.1 Device Variable 0 Disinfectant Disinfectant is read by means of the Trides Sensor (Refer to AMI Trides manual to details on it).
5.2 Device Variable 1 pH / Redox pH/Redox is read with the pH/Redox electrode (Refer to AMI Trides manual to details on it).
5.3 Device Variable 2 Temperature Temperature is read by means of the Temperature sensor (Refer to AMI Trides manual to details on it).
5.4 Device Variable 3 Flow rate Flow rate is read by means of the Hall effect sensor (Refer to AMI Trides manual to details on it).
5.5 Device Variable 4 Hypochlorus acid Hypochlorus acid is calculated starting from disinfectant and pH values (Refer to AMI Trides manual to details on it).
5.6 Device Variable 5 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Disinfectant - pH/Redox -Temp. - Flow rate -
Hypochlorus ppm - pH/mV - °C - rpm -
ppm
SV Disinfectant - pH/Redox -Temp. - Flow rate -
Hypochlorus ppm - pH/mV - °C - rpm -
ppm
TV Disinfectant - pH/Redox -Temp. - Flow rate -
Hypochlorus ppm - pH/mV - °C - rpm -
ppm
QV Disinfectant - pH/Redox -Temp. - Flow rate -
Hypochlorus ppm - pH/mV - °C - rpm -
ppm
It is possible to associate any of these dynamic variables to PV, SV, TV or QV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 4 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 DIS. Alarm high E001 1 DIS. Alarm low E002 2 pH/Redox Alarm high E003 3 pH/Redox Alarm low E004 4 Reserved 5 Reserved 6 Sample Temp. high E007 7 Sample Temp. low E008 8 Sample Flow high E009 9 Sample Flow low E010 10 Temp. shorted E011 11 Temp. disconnected E012 12 Case Temp. high E013 13 Case Temp. low E014 14 TRIDES Reference E015 15 Reserved 16 Control Timeout E017 17 Reserved 18 Reserved 19 Reserved 20 Reserved 21 Reserved 22 Cleaning Reagent E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Cal. Recout E031 31 Wrong Frontend E032
"Reserved" bits are always set to 0.
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All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV, SV, TV and QV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
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18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS 9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV, SV, TV and QV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV, SV, TV and QV
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11. TABLES 11.1 Engineering Type Unit Codes
Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Micro Siemens 56 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Flow Revolutions per minute 241 Not used 250
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Trides sensor value sample 1 per second
pH electrode value sample 1 per second
Temperature sensor sample 1 per second
Hall effect sensor sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A: CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Trides rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 5 (four external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 6
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Disinfectant
Lower Range Value 0 ppm
Upper Range Value 20 ppm
PV Units ppm
Damping time constant 4.777 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Trides
Document ID 109370.00
Document Revision
Date Device Revision DD Revision Description
1.0 23/06/2016 1 1 First release, for HART 7.x Device
SWAN Analytical Instruments
HART® 7.x Field Device Specification for AMI Turbi Transmitters
SWAN Analytical Instruments 8340, Studbachstrasse 13
Hinwil Switzerland
SWAN Analytical Instruments AMI Turbi HART Manual
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TABLE OF CONTENTS
1. Introduction ......................................................................................................................................4
1.1 Scope ....................................................................................................................................4
1.2 Purpose .................................................................................................................................4
1.3 Who should use this document? ..........................................................................................4
1.4 References ............................................................................................................................4
2. Device Identification ........................................................................................................................5
3. Product Overview ............................................................................................................................5
3.1 Connections..........................................................................................................................5
3.1.1 Point to point Mode ..............................................................................................5
3.1.2 Multidrop Mode ....................................................................................................6
3.1.3 HARTREC Board .................................................................................................6
4. Product Interfaces ............................................................................................................................7
4.1 Process Interface ..................................................................................................................7
4.1.1 Sensor Input Channels ..........................................................................................7
4.2 Host Interface .......................................................................................................................7
4.2.1 Process Turbidity ..................................................................................................7
4.3 Local Interfaces ....................................................................................................................7
4.3.1 Local Controls and Displays .................................................................................7
4.3.2 Write Protection ....................................................................................................7
5. Device Variables ..............................................................................................................................8
5.1 Device Variable 0 Turbidity.................................................................................................8
5.2 Device Variable 1 Flow rate ................................................................................................8
5.3 Device Variable 2 Temperature ...........................................................................................8
5.4 Device Variable 3 Case Temperature ..................................................................................8
6. Dynamic Variables ...........................................................................................................................9
6.1 Mappable Variables .............................................................................................................9
6.2 PV Transfer Functions .........................................................................................................9
7. Status Information ..........................................................................................................................10
7.1 Field Device Status ............................................................................................................10
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7.2 Extended Device Status .....................................................................................................10
7.3 Additional Device Status (Command #48) ........................................................................11
8. Universal Commands .....................................................................................................................13
9. Common-Practice Commands .......................................................................................................15
9.1 Supported Common Practice Commands ..........................................................................15
9.2 Burst Mode .........................................................................................................................15
9.3 Catch Device Variable .......................................................................................................15
10. Device-Specific Commands ...........................................................................................................15
11. Tables 16
11.1 Engineering Type Unit Codes ............................................................................................16
11.2 Classification Unit Codes ..................................................................................................16
12. Performance ...................................................................................................................................17
12.1 Sampling Rates ..................................................................................................................17
12.2 Power-Up ...........................................................................................................................17
12.3 Command Response Times................................................................................................17
12.4 Long Messages ...................................................................................................................17
12.5 Non-Volatile Memory ........................................................................................................17
12.6 Modes .................................................................................................................................17
12.7 Write Protection .................................................................................................................17
12.8 Damping .............................................................................................................................17
Annex B. Default Configuration ........................................................................................................19
Annex C. Revision History ................................................................................................................20
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1. INTRODUCTION 1.1 Scope The SWAN Analytical Instruments model AMI Turbi transmitter complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (i.e. the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications.
1.2 Purpose This specification is designed to complement the AMI Turbi manual by providing a complete description of this Field Device from a HART Communication perspective.
1.3 Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands and performance requirements) used during development, maintenance and testing. This document assumes the reader is familiar with HART Protocol requirements and terminology.
1.4 References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.
MenAMI_Turbi_xx.pdf. Available from the SWAN Analytical Instruments web page.
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2. DEVICE IDENTIFICATION Manufacturer Name: SWAN Analytical
Instruments Model Name(s): AMI Turbi
Manufacture ID Code: 24757 (60B5 Hex)
Device Type Code:
58198 (E356 Hex)
HART Protocol Revision 7.5 Device Revision: 1
Number of Device Variables 4
Physical Layers Supported FSK
Physical Device Category Transmitter, Non-DC-isolated Bus Device
3. PRODUCT OVERVIEW The AMI Turbi HART communication option board provides a 4 to 20mA output signal and can be monitored and configured using a HART master device or a hand-held communicator.
3.1 Connections 3.1.1 Point to point Mode
An external minimum 250 Ω (maximum 800 Ω) resistor is needed in order to communicate with HART protocol.
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3.1.2 Multidrop Mode
A single minimum 250 Ω resistor (maximum 800 Ω) is needed to communicate with all the instruments connected to the bus, and each of them must provide 4mA.
3.1.3 HARTREC Board
The HARTREC Board must be installed in the AMI transmitter in order to communicate with HART.
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4. PRODUCT INTERFACES 4.1 Process Interface 4.1.1 Sensor Input Channels Refer to AMI Turbi manual to details on mounting FOME sensor.
4.2 Host Interface 4.2.1 Process Turbidity The 4 to 20mA output of the AMI Turbi HART option board represents a process value measurement, scaled according to the configured range of the instrument. This output corresponds to the Primary Variable. HART Communication is supported on this loop.
Since Dynamic Variables are mappable, PV can correspond to one of the following variables:
- Turbidity / Concentration
- Flow rate
It is also possible to set the PV from the instrument local display, in the “Signal Output 3 / Parameter” settings.
4.3 Local Interfaces 4.3.1 Local Controls and Displays This device has a local display that allows the complete configurability of the instrument.
Refer to AMI Turbi manual to details on it.
4.3.2 Write Protection The Field Device has no “Write protection mode”.
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5. DEVICE VARIABLES This Field Device exposes four Device Variables
Device Variables Variables Meaning Units 0 Turbidity / Concentration FNU-NTU/ppm
1 Flow rate l/h
2 Temperature °C
3 Case Temperature °C
5.1 Device Variable 0 Turbidity Turbidity is read inside the measuring chamber (Refer to AMI Turbi manuals to details on it).
5.2 Device Variable 1 Flow rate Flow rate is read by means of the flow meter (Refer to AMI Turbi manuals to details on it).
5.3 Device Variable 2 Temperature Temperature is read by means of the Temperature sensor (Refer to AMI Turbi manuals to details on it).
5.4 Device Variable 3 Case Temperature Case Temperature shows the Temperature read inside the Electronic Box.
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6. DYNAMIC VARIABLES 6.1 Mappable Variables Three mappable Dynamic Variables are implemented.
Dynamic Variables Variables Meaning Units
PV Turbidity / Concentration – Flow rate FNU – NTU / ppm – l/h
SV Turbidity / Concentration – Flow rate FNU – NTU / ppm – l/h
It is possible to associate any of these dynamic variables to PV or SV with a HART Master (or Handheld Communicator).
The PV is also settable from the instrument local display’s settings.
6.2 PV Transfer Functions The Primary Variable Transfer Function can be read with command 15. Its meaning is referred to the following table.
Transfer Function Type Code
Linear 240
Bilinear 241
Logarithmic 242
Control Upwards 243
Control Downwards 244
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7. STATUS INFORMATION 7.1 Field Device Status The functions of the Field Device Status bits are specified in HCF_SPEC-99. Further details of their implementation are described in the following table.
Bit Name Notes
7 Device Malfunction Set on any detected Hardware Error
6 Configuration Changed Set if any changes are made to Field Device Configuration
5 Cold Start Set when powered-up or after a device reset
4 More Status Available Set if any Alarm or Maintenance has changed its status. More information is available via command 48
3 Loop Current Fixed The Loop Current is being held at a fixed value and is not responding to process variations
2 Loop Current Saturated The Loop Current has reached its upper (or lower) endpoint limit and cannot increase (or decrease) any further
1 Non-PV Out of Limits A Device Variable not mapped to the PV is beyond its
operating limits
0 PV Out of Limits The PV is beyond its operating limit
7.2 Extended Device Status Contains additional information regarding the status of the Field Device.
Bit Name Notes
2 Critical Power Failure Set when battery is becoming critically low (less than 15 min) and Field Device not connected to Power Supply
1 Device Variable Alert
Set when one or more Device Variables are in one of the following conditions:
• Hi/low limited (Limit Status)
• Bad (Process Data Status)
• Poor Accuracy (Process Data Status)
0 Maintenance Required Not Used
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7.3 Additional Device Status (Command #48) Command #48 returns 6 additional bytes of data (Int32 or Int16 Little Endian), with the following status information:
ALARMS - MAINTENANCE CODES:
Byte Bit Meaning Alarm Code
0 – 3
(INT32)
0 Alarm high E001 1 Alarm low E002 2 Reserved 3 Reserved 4 Range E005 5 Reserved 6 Reserved 7 Reserved 8 Sample Flow high E009 9 Sample Flow low E010 10 Reserved 11 Reserved 12 Case Temp. high E013 13 Case Temp. low E014 14 Reserved 15 Zero too high E016 16 Control Timeout E017 17 Turbi disconnected E018 18 Turbi Overflow E019 19 Lamp off E020 20 EEProm Turbi E021 21 Reserved 22 Cleaning Reagent E023 23 Input active E024 24 IC MK41T56 E025 25 IC LM75 E026 26 IC PCF8574 E027 27 Signal output open E028 28 EEProm Motherboard E029 29 EEProm Frontend E030 30 Calibration Recout E031 31 Wrong Frontend E032
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4 – 5
(INT16)
0 Photometer dirty E065 1 Filter congested E066 2 Check absorber E067 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved
"Reserved" bits are always set to 0.
All bits used in these bytes indicate device/sensor failure or maintenances, and always set bit 4 of the Device Status byte.
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8. UNIVERSAL COMMANDS Number Name Notes
0 Read Unique Identifier Returns identity information of the Field Device
1 Read Primary Variable Returns PV value and its unit
2 Read Loop Current and Percent of Range Returns AO value and % range
3 Read Dynamic Variables and Loop Current Returns PV and SV values and corresponding unit values along with AO value
6 Write Polling Address Changes Field Device’s polling address and loop current mode
7 Read Loop Configuration Returns polling address and loop current mode status
8 Read Dynamic Variable Classifications Returns dynamic variables classification
9 Read Device Variables with Status Returns device variables with status
11 Read Unique Identifier Associated With Tag Same response as command 0 when Tag matches
12 Read Message Returns 24 bytes of packed ASCII data
13 Read Tag, Descriptor, Date Returns tag, descriptor (packed ASCII format) and date from the device
14 Read Primary Variable Transducer Information Returns PV transducer limits and span
15 Read Device Information Returns PV unit value, LRV, URV, damping value and write protect code
16 Read Final Assembly Number Returns final assembly number
17 Write Message Write 24 bytes of packed ASCII data.
18 Write Tag, Descriptor, Date Writes tag, descriptor (packed ASCII format) and date to the device
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19 Write Final Assembly Number Writes final assembly number to the device
20 Read Long Tag Returns 32-byte Long Tag
21 Read Unique Identifier Associated with Long Tag Same response as command 0 when Long Tag matches
22 Write Long Tag Writes Long Tag to the Field Device
38 Reset Configuration Changed Flag Resets the configuration change flag
48 Read Additional Device Status See 7.3 for details
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9. COMMON-PRACTICE COMMANDS 9.1 Supported Common Practice Commands
9.2 Burst Mode This Field Device does not support Burst Mode.
9.3 Catch Device Variable This Field Device does not support Catch Device Variable.
10. DEVICE-SPECIFIC COMMANDS This Field Device does not support Device Specific Commands.
Number Name Notes
33 Read Device Variables Returns all the Supported Device Variables
50 Read Dynamic Variable Assignment Returns the Variable Numbers associated with PV and SV
51 Write Dynamic Variable Assignment Writes the Variable Numbers associated with PV and SV
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11. TABLES 11.1 Engineering Type Unit Codes Units of Measurement Unit Code Temperature Degrees Celsius 32 Electric Potential millivolts 36 Electric Resistance Ω 37 Miscellaneous Hertz 38 Electric Current milliamperes 39 Time Minutes 50 Time Seconds 51 Time Hours 52 Time Days 53 Miscellaneous Micro Siemens 56 Miscellaneous Percent 57 Electric Potential Volts 58 Miscellaneous pH 59 Flow Liters per hour 138 Concentration Parts per million 139 Electric Resistance kΩ 163 Concentration Parts per billion 169 Turbidity Formazin Nephelometric Units 170 Turbidity Nephelometric Turbidity Unit 172 Not used 250 Special 253
11.2 Classification Unit Codes Measurement Meas. Code Temperature 64 Volumetric flow 66 Time 70 Frequency 80 Analytical 81 Electric Potential 83 Current 84 Resistance 85 Conductance 87 Concentration 90 Turbidity 97 Not used 250 Special 253
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12. PERFORMANCE 12.1 Sampling Rates Typical sampling rates are shown in the following table.
Turbi sensor value sample 1 per second
Temperature sensor sample 1 per second
Flow meter sensor sample 1 per second
Case Temperature sensor sample 1 per second
Note: all the Device Variables use an Infinite Impulse Response Filter, with coefficients depending on the measured variable. The Damping Value is different for each of the Device Variables, and can be read through Command 15.
12.2 Power-Up On power up, the transmitter takes approximately 10 seconds to be ready. During this period, the device will not respond to HART commands.
12.3 Command Response Times
Minimum 2ms
Typical 5ms
Maximum 150ms
12.4 Long Messages The largest data field used is in the response to Command 9: up to 71 bytes including the two status bytes.
12.5 Non-Volatile Memory EEPROM is used to hold the device’s configuration parameters. New data is written to this memory immediately on execution of a write command, before the consequent response.
12.6 Modes Loop current mode can be disabled or enabled using command 6.
12.7 Write Protection Write-protection is not selectable, and is always set as “not write protected”.
12.8 Damping Damping time is calculated for each dynamic variable.
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ANNEX A: CAPABILITY CHECKLIST
Manufacturer, model and revision SWAN Analytic Instruments, AMI Turbi rev. 1
Device type Transmitter
HART revision 7.x
Device Description available Yes
Number and type of sensors 3 (two external, one internal)
Number and type of actuators 0
Number and type of host side signals 1: 4 - 20mA analog
Number of Device Variables 4
Number of Dynamic Variables 2
Mappable Dynamic Variables? Yes
Number of common-practice commands 3
Number of device-specific commands 0
Bits of additional device status 48
Alternative operating modes? No
Burst mode? No
Write-protection? No
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ANNEX B. DEFAULT CONFIGURATION
Parameter Default value
PV Sensor Type Turbidity
Lower Range Value 0 FNU
Upper Range Value 250 FNU
PV Units FNU
Damping time constant 4.777 seconds
Fault-indication jumper Not used
Write-protect jumper Not used
Number of response preambles 5
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ANNEX C. REVISION HISTORY
Document Title HART Interface Description AMI Turbi
Document ID 109371.00
Document Revision
Date Device Revision DD Revision Description
1.0 27/06/2016 1 1 First release, for HART 7.x Device
HART Interface Description
A-96.250.861 / 160718
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