Isolated Thermocouple Input module UGUser's Guide ML200-ITIM R200 September 2010 Release 200 Honeywell . ii Isolated Thermocouple Input Module TC4S User's Guide R200 ... This document

Honeywell Process Solutions

Isolated Thermocouple Input Module

TC4S User's Guide

ML200-ITIM R200

September 2010

Release 200 Honeywell

ii Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010

Notices and Trademarks Copyright 2010 by Honeywell International Sárl.

Release 200 September 2010

While this information is presented in good faith and believed to be accurate, Honeywell disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customers.

In no event is Honeywell liable to anyone for any indirect, special or consequential damages. The information and specifications in this document are subject to change without notice.

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Other brand or product names are trademarks of their respective owners.

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R200 Isolated Thermocouple Input Module TC4S User's Guide iii September 2010 Honeywell

About This Document This document describes how to install and configure the Experion Station-TPS (ES-T) and Experion Server TPS (ESVT) nodes. The nodes become full members in Experion PKS as well as connect directly to the TPN (TotalPlant Network).

Release Information

Document Name Document ID

Release Number

Publication Date

TC4S User's Guide ML200-ITIM

200 September 2010

References The following list identifies all documents that may be source of reference for material discussed in this publication.

Document Title

Support and Other Contacts

iv Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010


United States and Canada Contact:

Phone: Fascimile: Mail:

Honeywell Solution Support Center 1-800-822-7673 Calls are answered by dispatcher between 6:00 am and 4:00 pm Mountain Standard Time. Emergency calls outside normal working hours are received by an answering service and returned within one hour. 1-973-455-5000 Honeywell TAC, MS L17 1860 W. Garden Lane Phoenix, AZ, 85027 USA

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Phone: Fascimile: Mail:

Honeywell TAC-EMEA +32-2-728-2345 +32-2-728-2696 TAC-BE02 Hermes Plaza Hermeslaan, 1H B-1831 Diegem, Belgium

Pacific Contact:

Phone: Fascimile: Mail: Email:

Honeywell Global TAC – Pacific 1300-364-822 (toll free within Australia) +61-8-9362-9559 (outside Australia) +61-8-9362-9564 Honeywell Limited Australia 5 Kitchener Way Burswood 6100, Western Australia [email protected]

India Contact:


Honeywell Global TAC – India +91-20- 6603-9400 +91-20- 6603-9800 Honeywell Automation India Ltd 56 and 57, Hadapsar Industrial Estate Hadapsar, Pune –411 013, India [email protected]


R200 Isolated Thermocouple Input Module TC4S User's Guide v September 2010 Honeywell

Korea Contact:


Honeywell Global TAC – Korea +82-2-799-6317 +82-2-792-9015 Honeywell Co., Ltd 4F, Sangam IT Tower 1590, DMC Sangam-dong, Mapo-gu Seoul, 121-836, Korea [email protected]

People’s Republic of China Contact:

Phone: Mail: Email:

Honeywell Global TAC – China +86- 21-2219-6888 800-820-0237 400-820-0386 Honeywell (China) Co., Ltd 33/F, Tower A, City Center, 100 Zunyi Rd. Shanghai 200051, People’s Republic of China [email protected]

Singapore Contact:


Honeywell Global TAC – South East Asia +65-6580-3500 +65-6580-3501 +65-6445-3033 Honeywell Private Limited Honeywell Building 17, Changi Business Park Central 1 Singapore 486073 [email protected]

Taiwan Contact:


Honeywell Global TAC – Taiwan +886-7-536-2567 +886-7-536-2039 Honeywell Taiwan Ltd. 17F-1, No. 260, Jhongshan 2nd Road. Cianjhen District Kaohsiung, Taiwan, ROC [email protected]


vi Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010

Japan Contact:


Honeywell Global TAC – Japan +81-3-6730-7160 +81-3-6730-7228 Honeywell Japan Inc. New Pier Takeshiba, South Tower Building, 20th Floor, 1-16-1 Kaigan, Minato-ku, Tokyo 105-0022, Japan [email protected]

Elsewhere Call your nearest Honeywell office.

World Wide Web Honeywell Solution Support Online:

http://www.honeywell.com/ps

Training Classes Honeywell Automation College:

http://www.automationcollege.com

http://www.honeywell.com/ps�

http://www.automationcollege.com/�

Symbol Definitions

R200 Isolated Thermocouple Input Module TC4S User's Guide vii September 2010 Honeywell

Symbol Definitions The following table lists the symbols used in this document to denote certain conditions.

Symbol Definition

ATTENTION: Identifies information that requires special consideration.

TIP: Identifies advice or hints for the user, often in terms of performing a task.

REFERENCE -EXTERNAL: Identifies an additional source of information outside of the bookset.

REFERENCE - INTERNAL: Identifies an additional source of information within the bookset.

CAUTION

Indicates a situation which, if not avoided, may result in equipment or work (data) on the system being damaged or lost, or may result in the inability to properly operate the process.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

CAUTION symbol on the equipment refers the user to the product manual for additional information. The symbol appears next to required information in the manual.

WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in serious injury or death.

WARNING symbol on the equipment refers the user to the product manual for additional information. The symbol appears next to required information in the manual.

WARNING, Risk of electrical shock: Potential shock hazard where HAZARDOUS LIVE voltages greater than 30 Vrms, 42.4 Vpeak, or 60 VDC may be accessible.

Symbol Definitions

viii Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010

Symbol Definition

ESD HAZARD: Danger of an electro-static discharge to which equipment may be sensitive. Observe precautions for handling electrostatically sensitive devices.

Protective Earth (PE) terminal: Provided for connection of the protective earth (green or green/yellow) supply system conductor.

Functional earth terminal: Used for non-safety purposes such as noise immunity improvement.

NOTE: This connection shall be bonded to Protective Earth at the source of supply in accordance with national local electrical code requirements.

Earth Ground: Functional earth connection.

NOTE: This connection shall be bonded to Protective Earth at the source of supply in accordance with national and local electrical code requirements.

Chassis Ground: Identifies a connection to the chassis or frame of the equipment shall be bonded to Protective Earth at the source of supply in accordance with national and local electrical code requirements.

R200 Isolated Thermocouple Input Module TC4S User's Guide ix September 2010 Honeywell

Contents

1. INTRODUCTION .......................................................................... 13 1.1 Overview of 2MLF-TC4S ............................................................................... 13

Background .......................................................................................................................... 13 Features ............................................................................................................................... 13

1.2 Terms and definitions ................................................................................... 14 Analog quality – A ................................................................................................................ 14 Digital quality – D ................................................................................................................. 14 Thermocouple sensor .......................................................................................................... 15 Disconnection detection ....................................................................................................... 15 Compensating cable ............................................................................................................ 15 Thermo electromotive force .................................................................................................. 15 Reference junction compensation (RJC) .............................................................................. 15

2. SPECIFICATIONS ........................................................................ 17 2.1 Performance specifications ......................................................................... 17 2.2 Part names and functions ............................................................................ 19 2.3 Characteristics of thermocouple temperature sensor input module ...... 21

Temperature conversion characteristics .............................................................................. 27 Conversion speed ................................................................................................................ 27 Preciseness .......................................................................................................................... 28 Temperature display ............................................................................................................ 29 Scaling function .................................................................................................................... 29 Disconnection detection function .......................................................................................... 30 Sensor connection ............................................................................................................... 30

2.4 Input module function of thermocouple temperature sensor .................. 31 Average function .................................................................................................................. 31 Filter function ........................................................................................................................ 33 Alarm function ...................................................................................................................... 34 Maximum /Minimum display ................................................................................................. 36

3. INSTALLATION AND WIRING .................................................... 37 3.1 Installation ..................................................................................................... 37

Installation environment ....................................................................................................... 37 3.2 Wiring ............................................................................................................. 37

Wiring precautions ............................................................................................................... 37

Contents Symbol Definitions

x Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010

Wiring example .................................................................................................................... 38

4. OPERATIONS AND MONITORING ............................................ 39 4.1 Operating the thermocouple module ........................................................... 39

Operations ........................................................................................................................... 39 4.2 Parameter Setting .......................................................................................... 40

Special module parameter setting of I/O parameter ............................................................ 40 Setting by program (instruction) .......................................................................................... 43

4.3 Module information monitoring ................................................................... 46 4.4 Module data monitoring ................................................................................ 48

Data monitoring through Special Module Monitoring ........................................................... 48 Data monitoring by program ................................................................................................ 51

4.5 Other settings ................................................................................................ 52 Special Module Monitoring .................................................................................................. 52 Registering special module variables .................................................................................. 54

5. INTERNAL MEMORY .................................................................. 57 5.1 Configuration of internal memory ................................................................ 57

Overview of internal memory configuration ......................................................................... 57 I/O data of thermocouple I/O module .................................................................................. 57 Operation parameter setting area (use of PUT/PUTP) ........................................................ 62 Other data monitoring area (use of GET/GETP) ................................................................. 65

5.2 I/O area of TC module conversion data ....................................................... 66 Module status flag (%UXa.b, a: base number, b: slot number) ........................................... 66 Channel status flag (%UX.a.b.16~27, a: base number, b: slot number) .............................. 67 Process alarm output flag (%UXa.b.32~47, A: base number, A: slot number) .................... 67 Rate-change-alarm flag ....................................................................................................... 68 Channel temperature conversion value ............................................................................... 69 Channel scale operation value ............................................................................................ 70 Minimum/maximum channel temperature conversion value ................................................ 71 Data upload time ................................................................................................................. 72 Command junction .............................................................................................................. 73

5.3 Operation parameter setting area ................................................................ 74 Assigning channel (address 0); channel status ................................................................... 74 Sensor type setting area (address 1~4); sensor status ....................................................... 75 Temperature metric system indication area (address 5); temp.unit ..................................... 76 Filter value setting area (address 6~9); filter constant ......................................................... 77 Averaging method setting area (address 10~13); average processing ............................... 78 Average setting area (address 14~17); average value ........................................................ 79 Scale type setting area (address 18); scaling data type ...................................................... 80


R200 Isolated Thermocouple Input Module TC4S User's Guide xi September 2010 Honeywell

Minimum/maximum scale range setting area (address 19~26); scaling minimum value/maximum value .......................................................................................................... 81 Process alarm boundary value setting area (address 27~42); Process alarm H.H. limit, Process alarm H. limit, Process alarm L. limit, Process alarm L.L. limit ............................... 83 Process alarm hysteresis setting area (address 43~46); Process alarm HYS ..................... 84 Alarm type setting area of Rate Change alarm (address 47); RCA type .............................. 85 Rate change alarm H./L. boundary value setting area (address 48~55); RCA high limit, RCA low limit ................................................................................................................................ 87 Rate change alarm detection period setting area (address 56~59) ...................................... 88

5.4 Other data monitoring setting area ............................................................. 90 Setting error information output area (Address 60~63) ........................................................ 90 Rate Change alarm output area (Address 64~67) ............................................................... 91 Sensor disconnection information output area (address 68~71) .......................................... 92 Cold junction compensation temperature output area (Address 72~75) .............................. 93

6. PROGRAMMING .......................................................................... 95 6.1 Read/write operation parameter setting area ............................................. 95

Read operation parameter setting area (GET, GETP Instruction) ........................................ 95 Write operation parameter area (PUT, PUTP instruction) .................................................... 96

6.2 Basic program ............................................................................................... 98 Example using I/O parameter setting ................................................................................... 98

6.3 Application program ................................................................................... 100 System configuration .......................................................................................................... 100 Initial settings ..................................................................................................................... 100 Program description ........................................................................................................... 101 Program ............................................................................................................................. 101 CH data monitor program (I/O slot fixation point assignment: 64points) ............................ 102 Other data monitoring programs ........................................................................................ 104

7. TROUBLESHOOTING ............................................................... 107 7.1 Introduction ................................................................................................. 107 7.2 LED indication by errors ............................................................................ 107 7.3 Diagnostics and measures ......................................................................... 108

Run LED quickly flickers..................................................................................................... 108 Run LED slowly flickers ...................................................................................................... 108 Run LED turns off ............................................................................................................... 109 ALM LED flickers ................................................................................................................ 110 CPU module cannot read temperature conversion value ................................................... 110

7.4 Error code .................................................................................................... 111 Error codes of abnormal sensor connection (in case of sensor disconnection).................. 111


xii Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010

Error codes of abnormal module H/W (contact the close agency or the company) ........... 112

8. APPENDIX ................................................................................. 115 8.1 Terminology ................................................................................................. 115 8.2 Thermo electromotive force and compensating cable ............................ 117

Table of thermo electromotive force .................................................................................. 117 Thermocouple ................................................................................................................... 120 Compensating cable .......................................................................................................... 123

8.3 Dimension .................................................................................................... 125 2MLF-TC4S ....................................................................................................................... 125

R200 Isolated Thermocouple Input Module TC4S User's Guide 13 September 2010 Honeywell

1. Introduction

1.1 Overview of 2MLF-TC4S Background

2MLF-TC4S is an Isolated Thermocouple Input module, used to convert temperature data to digital values. The module converts data detected by nine different types of thermocouple sensors (K/J/E/T/B/R/S/N/C) into 16 bit binary data.

Features 1. Modules depending on application

2MLF-TC4S: 4 Ch. Input (inter-channel isolation type)

2. Nine sensors available K / J / E / T / B / R / S / N / C

3. Detection of disconnection The module detects and displays the disconnection between the thermocouple temperature sensor, compensating cable, and modules.

4. Temperature displays in Fahrenheit or Celsius

5. Temperature conversion is scaled into the pre-set 16 bit binary data (it may be used for additional data and temperature). Scale operation output of temperature conversion is available within -32768~32767/0~65535.

6. Additional functions: Filtering, average function (time/frequency/movement), alarm (process/input change), maximum/minimum detection function.

7. Graphical user interface (GUI) operation parameter setting/monitoring by means of SoftMaster. SoftMaster enables I/O parameter setting reducing the sequence program. In addition, special module monitoring enables monitoring of temperature conversion.

1. Introduction 1.2. Terms and definitions

14 Isolated Thermocouple Input Module TC4S User's Guide R200 Honeywell September 2010

1.2 Terms and definitions Analog quality – A

Analog quality refers to the constantly changing voltage, current, temperature, speed, pressure, and flow.

For instance, temperature is constantly changing over time as seen in the following figure. The changing temperature can be treated as a digital value in the PLC by using resistance temperature detector (RTD) input module.

Digital quality – D Digital quality refers to discrete changes in voltage, current, temperature, velocity, pressure, and flow over a period of time as illustrated in the following figure. For instance, ON/OFF signal is represented as digital quality of 0 and 1.



The CPU module does not directly accept analog values. Therefore, analog value is converted into a digital value before feeding to the CPU. In addition, the digital values from the CPU must be converted back into analog values to provide an analog output.

Thermocouple sensor A thermocouple is a sensor for measuring temperature. It consists of two dissimilar metals, joined together at one end. When the junction of the two metals is heated or cooled a voltage is produced that can be correlated back to the temperature. The thermocouple alloys are commonly available as wire.

Disconnection detection When a part of a compensating cable or thermocouple is disconnected, the Isolated Thermocouple Input module detects the disconnection.

Compensating cable Cable to compensate the tolerance due to the distance between input thermocouple terminal and thermocouple input module (temperature change) and in which both terminals have similar thermo electromotive force between 90 and 150°C.

Thermo electromotive force Thermo electromotive force for thermocouple temperature has non-linear characteristics. Therefore, it processes the non-linear characteristics to linear in the module.

Reference junction compensation (RJC) In a thermocouple sensor, the thermo electromotive force varies, depending on the temperature of a part measuring electromotive force. Since, the thermo electromotive force table of standards is based on 0°C, it compensates the gap between the current temperature and the actual reference temperature (0°C).




2. Specifications

2.1 Performance specifications Performance specifications are specified in table below.

Item Specifications

Number of input CH 4 CH

Type of input sensor K,J,E,T,B,R,S,N,C JIS C1602-1995 , ITS-90

Range of input temperature

K -250 ~ 1350°

J -200 ~ 1200°

E -250 ~ 1000°

T -250 ~ 400°

B 400 ~ 1800°

R -50 ~ 1750°

S -50 ~ 1750°

N -270 ~ 1300°

C 0 ~ 2300°

Digital value

Temp. display (unit of 0.1)

Displaying down to one decimal place (0.1°)

Scaling display

(user-defined scaling)

0 ~ 65535

-32768 ~ 32767

Preciseness

Ambient temperature (25°C)

±0.1%

(allowable for some section up to 1% of measurable temperature range by sensors)

Temperature coefficient (range of operating temp)

±100 ppm/°

Conversion speed 40ms / channel

2. Specifications 2.1. Performance specifications


Item Specifications

Isolation method Inter-channel Isolation

Terminal – PLC power Isolation (Photo-Coupler)

Cold junction compensation

Automatic compensation by RJC sensing (PT100)

Compensation degree ±1.0°

Function

Averaging function

Time average (320~64000ms)

Frequency average (2~64000 times)

Moving average (2~100)

Alarm function

Process alarm

Rate change alarm

Disconnection detection

Filter function Digital filter (160~64000ms)

Max./Min. display Display Max./Min.

Terminal block 18-point terminal

Current consumption 5V: 610mA

Weight 150g

2. Specifications 2.2. Part names and functions


2.2 Part names and functions

No. Description

1

RUN LED

Displays the operation status of 2MLF-TC4S module H/W (displays error).

On: normal module H/W

Blink: erroneous module H/W

Off: DC5V disconnection or abnormal module H/W

2. Specifications 2.2. Part names and functions


No. Description

2

ALM LED

Displays the input/channel operating status of 2MLF-TC4S module (displays warning).

Blink: input disconnection

Off: normal input status

3

Terminal block

It is designed to connect thermocouple temperature sensor to 2MLF-TC4S module.

PT100 for compensating nine types of thermocouple sensors and cold junction (module supplied).

2. Specifications 2.3. Characteristics of thermocouple temperature sensor input module


2.3 Characteristics of thermocouple temperature sensor input module

The 2MLF-TC4S module can be directly connected to nine types of thermocouple sensors and are as follows:

No Thermocouple Sensor Type

1 Thermocouple K (JIS C1602-1995): -250 ° (-6404µV) ~ 1350 ° (54138µV)

2 Thermocouple J (JIS C1602-1995): -200 ° (-7890µV) ~ 1200 ° (69553µV).




3 Thermocouple E (JIS C1602-1995): -250 ° (-9718µV) ~ 1000 ° (76373µV)




4 Thermocouple T (JIS C1602-1995): -250 ° (-6180µV) ~ 400 ° (20872µV)

5 Thermocouple B (JIS C1602-1995): 400 ° (787µV) ~ 1800 ° (13591µV)




6 Thermocouple R (JIS C1602-1995): -50 ° (-226µV) ~ 1750 ° (20877µV)




7 Thermocouple S (JIS C1602-1995): -50 ° (-236µV) ~ 1750 ° (18503µV)

8 Thermocouple N (JIS C1602-1995) : -270 ° (-4345µV) ~ 1300 ° (47513µV)




9 Thermocouple C (ITS-90): 0 ° (0µV) ~ 2300 ° (36922µV)




ATTENTION

• A thermocouple sensor measures temperature by using fine voltage (electromotive force), which is generated when applying temperature Rate Change to a junction between two different metals.

• The temperature-electromotive force relation specification of normal thermocouple sensor provides the electromotive force, which is measured when a sensor’s measuring point is at 0°C. When temperature is measured using a thermocouple sensor, cold junction compensation (reference junction compensation, RJC) is used (built-in function of temperature measuring module).

Temperature conversion characteristics

The isolated thermocouple input module converts the thermocouple input with non-linear characteristics into A/D and yields the temperature conversion that is linearly treated.

Temperature conversion to thermocouple input has non-linear characteristics.

ATTENTION

Non-linear characteristics: regarding the relation of temperature (°) and electromotive force (µV) of a thermocouple sensor, electromotive force is different by sections even though temperature changes by a certain amount, which is called ‘non-linear characteristics.’ As seen in the above graph, the relation of temperature and electromotive force is a curve by temperature sections. The module processes the non-linear characteristics table as linear.

Conversion speed 2MLF-TC4S has the conversion speed of 40ms per channel and processes channels sequentially (operation/stop of each channel may be assigned independently).

Process time = 40ms ∗ no. of used channels

Example: If using three channels: process time = 40ms ∗ 3 = 120ms



ATTENTION

The conversion speed of 2MLF-TC4S module is a cycle that the temperature (electromotive force) entered into terminal strip is converted into digital value and stored in internal memory.

Preciseness

The accuracy of 2MLF-TC4S module depends on the ambient temperature and is as follows:

• If the temperature measurement is 100o when the ambient temperature and K type thermocouple is used, the output range of conversion data is between 100 o - 2.6 ~ 100 o + 2.6; that is, 97.4 ~ 102.6 o.

ATTENTION

1. 2MLF-TC4S module is released from the factory after its offset/gain is adjusted by using standard source of each channel. To maintain the module’s accuracy, temporary changes to the values are strictly prohibited.

2. 2MLF-TC4S module has different errors within temperature coefficient of 100ppm, each time the operation temperature varies by one degree



Temperature display 2MLF-TC4S module displays temperature down to one decimal point.

a) If it displays 123.4o

b) If it displays 100

by converting, the value stored in the internal memory is 1234. In addition, it may display temperature by Celsius or Fahrenheit, depending on the settings of 2MLF-TC4S module.

o

in Celsius, it would be 212°F by using the following formula.

ATTENTION

From Celsius to Fahrenheit degree: F=[9/5]C + 32.

From Fahrenheit to Celsius degree: C=[5/9][F-32]. Scaling function

2MLF-TC4S module has a function of scale value in user-defined range besides temperature. The scope is classified into two types: Signed and unsigned integer.

If a user selects one of the two types and sets the range, it displays the temperature through scaling operation. If scaling with signed integer is set to -250 ~ 1000 and the temperature measured E type sensor is 500.0 o, the value scaled is as follows:



Disconnection detection function 2MLF-TC4S module measures temperature by directly connecting thermocouple temperature sensor and has the diagnosis function to detect and display any disconnection of a sensor connected.

1. In case of a disconnection between the sensors used/compensating cable and module, LED (ALM) flickers every second and generates an error code. In addition, LED (ALM) indication flickers every second even though cold junction compensating sensor installed on the module’s terminal block is separated or destructed, hindering normal connection.

2. Channel wise detection of disconnect is possible. However, it is available for only the channel(s) designated for operation. LED (ALM) is commonly used for every channel. It flickers in case even one channel is disconnected.

3. The module detects and displays disconnection and it means that the following cabling path will have partially bad connection, which requires taking measures.

Sensor connection A thermocouple sensor can either be directly connected to the terminal of the module or by using a compensating cable (type of cable depends on sensor type.) For the further information on connecting the sensor, contact sensor manufacturer.

2. Specifications 2.4. Input module function of thermocouple temperature sensor


2.4 Input module function of thermocouple temperature sensor Average function

Time average

The time average function measures temperature conversion values of a selected channel and displays the average of the total sum as a digital value.

• Setting range of average time = 320 ~ 64000ms

• Frequency of average process for a preset time can be calculated as follows:



Averaged frequency

It measures the temperature conversion and frequency values of a selected channel and displays the average of the total sum as a digital value.

• Setting range of average frequency = 2 ~ 64000 [times]

• Average process interval of channel used can be calculated as follows:

Moving average

It measures temperature conversion values of a selected channel per scan and displays the average of the total sum as a digital value.



• Setting range of average number = 2 ~ 100

ATTENTION

Out of the three types of averaging process, time/frequency average process does not yield temperature data for each conversion time and instead, it maintains the previous status until it reaches time/average frequency. On the other hand, in case of moving average, it yields the converted temperature, taking into account the temperature history and average for every conversion time, so it can obtain relatively faster data response than time/frequency average.

Filter function Using a filter value (corrected number) the temperature conversion setting of an assigned channel, operates and provides the output as follows:



• Setting range of filtering value = 160 ~ 64000ms

ATTENTION

Filtering in 2MLF-TC4S is processed using one of the averaging functions simultaneously. If you select simultaneous process, filtering is processed first and it averages and provides the temperature as a digital value. The digital data output (temperature) displays as the value gained after the final process.

Alarm function

Process alarm function

An alarm is raised if the temperature conversion value of a selected channel is higher than the temperature preset for alarm (HH, H) or lower than the temperature present for alarm (L, LL).



Rate change function

An alarm is raised if the change in temperature conversion value of a selected channel is greater than the Rate Change set for alarming (alarming can be set at two points of L/H limits).



Maximum /Minimum display It displays maximum/minimum value of temperature conversion value of a selected channel for a selected section (a section allowed for maximum/minimum search).


3. Installation and Wiring

3.1 Installation Installation environment

The isolated thermocouple input module can be reliably installed regardless of installation environment, it is essential to make note of the following before installation.

Environmental conditions

• Ensure that you install the PLC in a control panel which is waterproof and can withstand vibration.

• Ensure that the module is not exposed to direct sunlight.

• Ensure humidity level of 5 ~ 95%.

• Ensure that the ambient temperature is maintained between 0 and 55°.

Installation considerations

• Do not exert excessive force on it.

• Do not separate PCB from the case.

• Do not allow the impurities such as wiring dregs to go into the upper part of the module. Remove them if they go into the module.

• Do not attach or detach the module when it is turned ON.

3.2 Wiring Wiring precautions

1. Do not place AC power line close to the AUX signal line of the module. To avoid surge or induced noise occurring from AC, ensure adequate spacing.

2. Cable selection must take the ambient temperature and allowable current into account. The maximum size of the cable is AWG22 (0.3mm2

3. Ensure that the cable is not too close to a heating device or in direct contact with oil and similar materials. It may cause short-circuit, resulting in breakdown and malfunction of the module.

) and higher.

4. Check the polarities during terminal strip wiring.

3. Installation and Wiring 3.2. Wiring


5. Wiring with high-voltage cable or power line may cause induction problem, causing malfunction or trouble.

6. 2MLF-TC4S uses nine types of thermocouple sensors (K / J / E / T / B / R / S / N / C).

Wiring example

ATTENTION

2MLF-TC4S is the inter-input channel isolation type.


4. Operations and Monitoring

4.1 Operating the thermocouple module Operations

The following figure illustrates the procedure to set up and operate the thermocouple module.

4. Operations and Monitoring 4.2. Parameter Setting


4.2 Parameter Setting Special module parameter setting of I/O parameter

Perform the following steps to register Special module parameters of I/O parameter:

Step Action

1 Run SoftMaster.

2 Click Project > New Project. The New Project window displays.

3 Type the Project name and select the CPU type. Click OK.



Step Action

4 On the Project Window, click I/O Parameters on the tree view.

5 Register the module on a slot where the module is installed.

6 Select the registered module and click Details.

7 Select the required settings in Parameter settings and click OK.



Step Action

TIP

• Selecting filter constant, displays the available range on the lower-left of the dialog box.

• An incorrect entry displays a message.



Setting by program (instruction) When the module is in RUN mode, you can directly write changes in the program settings to the memory using the instruction (PUT/PUTP).

REFERENCE - INTERNAL

For the memory address, refer to Internal Memory.

PUT instruction

Area Setting

Operand Description Data Size

Sl Slot number where special module is installed (set to the hexadecimal)

WORD

S1 Address in internal memory of special module WORD

S2 Start number of address or a constant; saved data will be saved in special module.

WORD

N Number of data to save: WORD



Flag Setting

Flag Description Address Number

PUT/GET

Error

a) If there is no special module installed on specified slot.

b) If PUT/GET instruction is not completed correctly.

F0015 ~ F0022

PUT

• This instruction is used to write the data in special module with memory.

• It writes N word data from address specified in S2, in specified special module’s memory (specified in S) in sl (special module’s slot number).

• If there is no special module specified in sl (special module’s slot number), or PUT instruction is not completed correctly, applicable position bit of PUT/GET Error Flag, F0015~F0022 (WORD) will be set.



Program example

• Where the 40-word data of D1000 ~ D1039 is written in special module’s starting memory address,10 ~ 50 installed on the slot number 7 when M00000 is ON.

• Where the 3-word data of word M00010 ~ M00012 is written in A/D module’s internal memory address, 5 ~ 7 installed on the slot number 3 when M00000 is ON.

Program example

The program shows an example of operating by setting CH0 and CH1 as type J and type R by PUT instruction.

4. Operations and Monitoring 4.3. Module information monitoring


4.3 Module information monitoring Perform the following steps to see OS Version Information of a module.

Step Action

1 Click Online > Connect to connect to the MasterLogic 200 system.

2 If the connection fails, click Online > I/O information from the context menu.

The I/O information dialog box displays.

3 Select a module and click Details to view the module information.

4. Operations and Monitoring 4.3. Module information monitoring


ATTENTION

Perform the following steps to see the module information through Special Module Monitoring menu.

1. Click Monitor > Special Module Monitoring. The Special Module List window displays.

2. Select a module in Special Module List window.

3. Click Module Info to view the special module information.

4. Operations and Monitoring 4.4. Module data monitoring


4.4 Module data monitoring Data monitoring through Special Module Monitoring

Perform the following steps to see module data through Special Module Monitor menu.

Step Action

1 Click Online > Connect to connect to the MasterLogic 200 system.

2

After connecting, click Monitor > Special Module Monitoring from the menu. The Special Module List window displays.

3 Select a module and click Monitor. The Special Module Monitor window displays.



Step Action

4 Click FLAG Monitor to monitor the module instruction window for temperature input. The following window displays.



Step Action

5 To start data monitoring, click Start Monitoring.



Data monitoring by program It is possible to monitor the data of a program by using U address area.


For more information on address of area, refer to Internal Memory

Program example

2MLF-TC4S module on Slot 1 outputs the temperature of CH0 and CH1 and monitors scale value.

4. Operations and Monitoring 4.5. Other settings


4.5 Other settings Special Module Monitoring

Perform the following steps to monitor a special module.

Step Action

1 To connect to the MasterLogic 200 system, click Online > Connect.

2 Click Online>Change Mode>Stop.

ATTENTION

Test of 2MLF-TC4S module without SoftMaster program is possible as long as PLC is in STOP mode. However, even while PLC is in RUN mode, it is possible to monitor the data through Special Module Monitoring window.

3 When connected, click Monitor > Special Module Monitoring. The Special Module List window diaplays.

4 Select a module and click Monitor.

The current settings of a module appears with the Test button activated.



Step Action



Step Action

5 Click Test to view the selected settings.

ATTENTION

It is possible to set and monitor the module without a program. However, if backup of settings set in test are not available. Since the previous settings set in special module parameter are downloaded to a module, if running PLC for normal operation after test, it is necessary to re-set them on special module parameter to use test settings.

Registering special module variables 2MLK PLC offers special memory area, called special module variables to enable monitoring special module’s data (such as 2MLF-TC4S and so on) without a program.

To facilitate preparation of a program using the address area, it also offers symbolized variable name and its description.

Perform the following steps to register special module variables.



Step Action

1 Open a program in SoftMaster.

2 Set the special module on the slot in I/O parameter.

3 Double-click Global Variables/Address in the project window. The Global Variables/Address window displays.

4 Click Edit > Register Special Module Variable. The following dialog box appears.



Step Action

5 Click Yes to register the Special Module Variables in the global variables list.


5. Internal Memory

5.1 Configuration of internal memory Overview of internal memory configuration

2MLF-TC4S module has internal memory to send and receive data from/to MasterLogic 200 PLC. It describes the configuration of internal memory.

I/O data of thermocouple I/O module

Data sent from module to MasterLogic 200 PLC (MasterLogic 200 PLC input area) Address

Assignment Variable Name Description R/W Signal

Direction

%UXa.b.0 _ab_CH0_ADJERR CH0 Offset/Gain Error R

TC → CPU




%UXa.b.13 _ab_EEPROMERR Offset/Gain Backup Error R

%UXa.b.14 _ab_WDT_ERR Module H/W Error R

%UXa.b.15 _ab_RDY Module Ready R

%UXa.b.16 _ab_CH0_ACT CH0 Running R

TC → CPU




%UXa.b.20 _ab_CH0_BOUT CH0 Input Disconnection R




%UXa.b.24 _ab_CH0_SETERR CH 0 setting error R


5. Internal Memory 5.1. Configuration of internal memory


Address Assignment

Variable Name Description R/W Signal Direction



%UXa.b.32 _ab_CH0_PALL CH0 Process Alarm Ultra Lower Limit Flag R

TC → CPU

%UXa.b.33 _ab_CH0_PAL CH0 Process Alarm Lower Limit Flag R

%UXa.b.34 _ab_CH0_PAH CH0 Process Alarm Upper Limit Flag R

%UXa.b.35 _ab_CH0_PAHH CH0 Process Alarm Ultra Upper Limit Flag R






TC → CPU








Address Assignment




%UXa.b.48 _ab_CH0_RAL CH0 Rate-Change-Alarm Lower Limit Flag R

TC → CPU

%UXa.b.49 _ab_CH0_RAH CH0 Rate-Change-Alarm Upper Limit Flag R







%UWa.b.4 _ab_CH0_TEMP CH0 Temp. Value R

TC → CPU




%UWa.b.8 _ab_CH0_SCAL CH0 Scaling Value R




%UWa.b.12 _ab_CH0_MIN CH0 Temp. Min Value R



Address Assignment


%UWa.b.13 _ab_CH0_MAX CH0 Temp. Max Value R







%UDa.b.10 _ab_CH0_TIME CH 0 data upload time R


%UDa.b.12 _ab_CH2_TIME CH 2 data upload time R TC → CPU


Command sent from MasterLogic 200 PLC to module (MasterLogic 200 PLC output area)

Address Variable Name Description R/W Signal Direction

%UXa.b.464 _ab_CH0_FINDEN

CH0 Max/Min Search Enable/Disable R/W

CPU → TC







%UXa.b.468 _ab_CH0_ALMEN

CH0 Alarm(PVA/RCA) Enable/Disable





Address Variable Name Description R/W Signal Direction




CH3 Alarm(PVA/RCA) Enable/Disable R/W

%UXa.b.472 _ab_CH0_RJCDS

CH0 RJC Enable/Disable R/W






CH3 RJC Enable/Disable CPU → TC

ATTENTION

Typical addressing: The following is a typical example of the addressing in the thermocouple input module. _ab_ in the variable/address refers to the number of base and slots on which the module is configured.

For instance, in case reading or writing special module variable area, 4th bit data of a module installed on #0 base and #4 slot, is expressed as follows:

R: Write only for the data for the module in MasterLogic 200 PLC.

R/W: MasterLogic 200 PLC can read and write an instruction to the module.

%U Address : The data that is usually read or written such as conversion data of special module’s internal memory in PLC CPU, which is used to read or write every time when scanning special area (regularly read data, defined in module) of special/communication module in MasterLogic 200 PLC is assigned in the area. As other devices, it is possible to directly use general instructions such as MOV, CMP, ADD, and so on (on the other hand, module’s parameter area requires PUT/GET instruction).



Operation parameter setting area (use of PUT/PUTP)

Memory Address Description R/W Remarks

Dec. Hex.

0 0H Designate a channel to use R/W PUT/GET

1 1H Set sensor type of CH 0

R/W PUT/GET 2 2H Set sensor type of CH 1



5 5H Designate temperature metric system R/W PUT/GET

6 6H Set CH 0 filter value

R/W PUT/GET 7 7H Set CH 1 filter value



10 AH Set averaging method of CH 0

R/W PUT/GET 11 BH Set averaging method of CH 1

12 CH Set averaging method of CH 2

13 DH Set averaging method of CH 3

14 EH Set mean value of CH 0

R/W PUT/GET 15 FH Set mean value of CH 1

16 10H Set mean value of CH 2

17 11H Set mean value of CH 3

18 12H Designate scaling type R/W PUT/GET

19 13H Set min. value of CH 0 scaling range

R/W PUT/GET 20 14H Set max. value of CH 0 scaling range


22 16H Set max. value of CH 1 scaling range




Dec. Hex.


24 18H Set max. value of CH 2 scaling range


26 1AH Set max. value of CH 3 scaling range

27 1BH Set H.H. value of CH 0 process alarm

R/W PUT/GET

28 1CH Set H. value of CH 0 process alarm

29 1DH Set L. value of CH 0 process alarm

30 1EH Set L.L. value of CH 0 process alarm

31 1FH Set H.H. value of CH 1 process alarm

32 20H Set H. value of CH 1 process alarm

33 21H Set L. value of CH 1 process alarm

34 22H Set L.L. value of CH 1 process alarm

35 23H Set H.H. value of CH 2 process alarm

R/W PUT/GET



38 26H Set L.L. value of CH 2 process alarm

39 27H Set H.H. value of CH 3 process alarm



42 2AH Set L.L. value of CH 3 process alarm

43 2BH Set Hysteresis of CH 0 process alarm

R/W PUT/GET 44 2CH Set Hysteresis of CH 1 process alarm

45 2DH Set Hysteresis of CH 2 process alarm




Dec. Hex.

46 2EH Set Hysteresis of CH 3 process alarm

47 2FH Select alarm type of Rate Change alarm R/W PUT/GET

48 30H Set H. value of CH 0 Rate Change alarm

R/W PUT/GET

49 31H Set L. value of CH 0 Rate Change alarm







56 38H Set detection interval of CH 0 Rate Change alarm

R/W PUT/GET 57 39H Set detection interval of CH 1 Rate Change

alarm

58 3AH Set detection interval of CH 2 Rate Change alarm

59 3BH Set detection interval of CH 3 Rate Change alarm



Other data monitoring area (use of GET/GETP)


Dec. Hex.

60 3CH CH 0 setting error info (flag)

R GET 61 3DH CH 1 setting error info (flag)

62 3EH CH 2 setting error info (flag)

63 3FH CH 3 setting error info (flag)

64 40H CH 0 input change (input change alarm function data)

R GET 65 41H CH 1 input change (input change alarm

function data)



68 44H CH 0 disconnection info (code)

R GET 69 45H CH 1 disconnection info (code)



72 48H CH 0 cold junction compensating temp (RJC temperature)

R GET 73 49H CH 1 cold junction compensating temp (RJC

temperature)

74 4AH CH 2 cold junction compensating temp (RJC temperature)

75 4BH CH 3 cold junction compensating temp(RJC temperature)

5. Internal Memory 5.2. I/O area of TC module conversion data


5.2 I/O area of TC module conversion data Module status flag (%UXa.b, a: base number, b: slot number)

%UXa.b.0~3 _ab_CH0_ADJERR

_ab_CH1_ADJERR

_ab_CH2_ADJERR

_ab_CH3_ADJERR

Indicates abnormal offset/gain adjustment of a channel; it shows 1, if offset value > gain value or disconnection in adjusting.

REFERENCE – INTERNAL

If it shows 1, refer to Troubleshooting.

%UXa.b.13 _ab_EEPROMERR Indicate abnormal module offset/gain memory.



%UXa.b.14 _ab_WDT_ERR Indicate abnormal module H/W.



%UXa.b.15 _ab_RDY It indicates that the module is ready.



Channel status flag (%UX.a.b.16~27, a: base number, b: slot number)

%UX.a.b.16~19 _ab_CH0_ACT

_ab_CH1_ACT

_ab_CH2_ACT

_ab_CH3_ACT

Indicates operation status of a channel; it shows 1 if the channel bit of channel configuration area (0 address) is set as 1.

%UX.a.b.20~23 _ab_CH0_BOUT

_ab_CH1_BOUT

_ab_CH2_BOUT

_ab_CH3_BOUT

If disconnection of a channel shows 1, refer to setting error information area (68~71 address).

%UX.a.b.24~27 _ab_CH0_SETERR

_ab_CH1_SETERR

_ab_CH2_SETERR

_ab_CH3_SETERR

If setting error of a channel is 1, refer to setting error information area (60~63 address).

Note: Bit information in the area is cleared if a channel stops.

Process alarm output flag (%UXa.b.32~47, A: base number, A: slot number)

%UXa.b.32~35 _ab_CH0_PALL, _ab_CH0_PAL, _ab_CH0_PAH, _ab_CH0_PAHH

CH 0 process output flag indicates H.H/H/L/L.L alarms.









ATTENTION

Bit information in the area is cleared if a channel stops.

Rate-change-alarm flag %UXa.b.48~49 _ab_CH0_RAL

_ab_CH0_RAH

Indicates CH0 Rate-Change-Alarm Lower Limit Flag.

Indicates CH0 Rate-Change-Alarm Upper Limit Flag.

%UXa.b.52~53 _ab_CH1_RAL

_ab_CH1_RAH




_ab_CH2_RAH






_ab_CH3_RAH



ATTENTION

Bit information in the area is cleared if a channel stops.

Channel temperature conversion value

1. Output to temperature conversion value buffer memory address 4 ~ 7 (%UWa.b.04~07) by channels.

2. Temperature conversion value is saved as 16 bits binary numeral.

Address Description

%UWa.b.4 CH0 Temp. Value






Depending on the type of sensor and temperature metric system, it outputs temperature conversion values within the following range.

Celsius(°) Fahrenheit[°F]

K -2600 ~ 13600 -4360 ~ 24800

J -2100 ~ 12100 -3460 ~ 22100

E -2600 ~ 10100 -4360 ~ 18500

T -2600 ~ 4100 -4360 ~ 7700

B 3900 ~ 18100 7340 ~ 32900

R - 600 ~ 17600 - 760 ~ 32000

S - 600 ~ 17600 - 760 ~ 32000

N -2800 ~ 13100 -4720 ~ 23900

C - 100 ~ 23100 140 ~ 41900

ATTENTION

• Output range of temperature conversion value is within ±10°C margin of the maximum temperature range. For instance, in case of type K sensor, it indicates −10° of L and +10° of H, -2600~13600.

• The area is cleared if a channel stops (output 0 if it stops).

• The temperature indication/settings in 2MLF-TC4S module displays down to one decimal place (however, actually it does not display the decimal point).

Channel scale operation value

1. It outputs scale operation value for temperature conversion value to Address 8 ~11 (%UWa.b08~11) by channels.

RFERENCE - INTERNAL

For additional information, refer to Specifications.

2. Scale operation value can be temporarily set as 16 bits data:−32768 ~ 32767 or 0 ~ 65535.



Address Description

%UWa.b08 CH0 Scaling Value




ATTENTION

The area is cleared if a channel stops (output 0 if stoppage). Minimum/maximum channel temperature conversion value

The maximum/minimum temperatures displays, as long as maximum/minimum searching function is allowed.


For additional information, refer to

Specifications.

Address Description

%UWa.b12 CH0 Temp. Min Value

%UWa.b13 CH0 Temp. Max Value






Address Description




ATTENTION

The area is cleared if a channel stops (output 0 if stoppage). Data upload time

1. It is the area to display update interval (time; data 1 count of an area means 0.1ms) when updating module data for data sharing with MasterLogic 200 PLC.

2. In case module data is not entered at a specified interval (number of operation channel∗40ms) due to occupation time of PLC scan program, the real update interval can be detected using the data of the area.

3. In case processing data at regular intervals or using PV for control, it can be used for setting control interval.


For the examples, refer to Programming.

Address Description

%Uda.b10 CH0 Data Upload Time






ATTENTION

The area is cleared if a channel stops (output 0 if stoppage). Command junction

%UXa.b464~467 _ab_CH0_FINDEN

_ab_CH1_FINDEN

_ab_CH2_FINDEN

_ab_CH3_FINDEN

It outputs maximum/minimum values of temperature entered while the instruction junction is being set as 1. Until the bit of the area is set as 0, it maintains the maximum/minimum value. But, the function does not work if the channel stops although the area is allowed.

%UXa.b468~471 _ab_CH0_ALMEN

_ab_CH1_ALMEN

_ab_CH2_ALMEN

_ab_CH3_ALMEN

If the junction bit to select alarm function provided by module (Process alarm/Rate Change alarm), Enable or Disable is set as 1, the alarm function is allowed and it may output the alarm if it is within alarm condition depending on the settings. But, the function does not work if the channel stops although the area is allowed.

%UXa.b472~475 _ab_CH0_RJCDS

_ab_CH1_RJCDS

_ab_CH2_RJCDS

_ab_CH3_RJCDS

Command junction prohibiting or allowing cold junction compensation (RJC) of a channel. If the bit is set as 1, it does not support RJC. In general, the area is set as 0 (allowed). But, in case of Type B sensor, it does not support RJC regardless of the area instruction.

5. Internal Memory 5.3. Operation parameter setting area


5.3 Operation parameter setting area Each address of internal memory is occupied by a word, which can be indicated with 16 bits. Each function can be represented by setting, 1 if 16 bits consisting of address is ON or 0 if OFF.

Assigning channel (address 0); channel status 1. Temperature conversion module Enable/Disable can be set for each channel.

2. Scan time is reduced when unused channels are disabled.

3. Temperature conversion module Enable/Disable are as follows:

BIT Description

0 Stop

1 Enable/Disable

4. Values set in B4 ~ B15 are ignored.



5. The area shows the same results of operation channel assignment in I/O parameter setting window.

Sensor type setting area (address 1~4); sensor status

1. Use the following codes to set the input sensor type.

Sensor Type K J E T B R S N C

No. 0 1 2 3 4 5 6 7 8

2. If set as 9 and over, 0(type K) is forcibly set internally. But %UXa.b.24 ~ 27 (setting error flag) is On.

Refer to error information of setting error information area (address 60~63).



3. The area shows the same results of sensor type assignment in I/O parameter setting window.

Temperature metric system indication area (address 5); temp.unit 1. If a bit is set as 1, the temperature conversion value of a channel is output in

Fahrenheit.


For Celsius-Fahrenheit conversion formula, refer to Specifications.

2. Information set in bit 4~15 is ignored.



BIT Description

0 Celsius

1 Fahrenheit

3. The area shows the same results of temperature metric system assignment in the I/O parameter setting window.

Filter value setting area (address 6~9); filter constant

1. If filter value is set as 0, it does not process filtering the channel and instead, yields temperature conversion value sampling process.

2. If setting a value between 1 ~ 159 or over 64001, 0 (filter prohibited) is set internally; %UXa.b.24 ~ 27 (setting error flag) is ON (the bit, 1 of setting error information area (address 60 ~ 63) would be ON).



3. The area shows the same results of filter constant configuration in I/O parameter setting window.

Averaging method setting area (address 10~13); average processing 1. If set as 4 and over, 0 (sampling) is set internally; %UXa.b.24 ~ 27 (setting error

flag) is ON (the bit, 2 setting error information area (address 60 ~ 63) is ON.

2. The averaging method setting area is equivalent to the averaging configuration in I/O parameter setting window as shown in the following figure.



Average setting area (address 14~17); average value 1. If averaging process is sampling, the setting has no effect.

2. If any value other than the above value is set, the boundary values of each range are set internally; %UXa.b.24 ~ 27 (setting error flag) is ON (the bit, 3 of setting error information area (address 60 ~ 63) will be ON.), that is, if you select time average and the average is set as 200, it operates as internal default. However, if parameter window of SoftMaster is used, it prohibits the setting of a value that is out of range value (if incorrectly set, it indicates the value in red and shows a message to re-set).

3. The averaging value assignment area is equivalent to the averaging value assignment in I/O parameter setting window as shown in the following figure.



Scale type setting area (address 18); scaling data type 1. Scale operation is output in 16 bits unsigned (0 ~ 65535) or 16 bits (-32768 ~

32767) with signed.

2. Information assigned in bit 4~15 is ignored.

BIT Description

0 Signed integer

1 Unsigned integer

3. The scaling data type area is equivalent to the scaling data type configuration in I/O parameter setting window as shown in the following figure.



Minimum/maximum scale range setting area (address 19~26); scaling minimum value/maximum value

1. If you set the value that is out-of-range value, the settings stored in the module are maintained; %UXa.b.24 ~ 27 (setting error flag) is ON. The bit, 4(min) or 5(max) of setting error information area (address 60 ~ 63) is ON.

Address Description

Address 19 CH 0 min. scale range setting area

Address 20 CH 0 max. scale range setting area




Address Description






The minimum/maximum scaling value area is equivalent to the minimum/maximum scaling value configuration in I/O parameter setting window as shown in the following figure.



Process alarm boundary value setting area (address 27~42); Process alarm H.H. limit, Process alarm H. limit, Process alarm L. limit, Process alarm L.L. limit

1. Alarm is generated when the filed value crosses the setpoint.

Address Description

Address 27 CH 0 process alarm H.H. value setting area

Address 28 CH 0 process H. value setting area

Address 29 CH 0 process alarm L. value setting area

Address 30 CH 0 process alarm L.L. value setting area















2. The process alarm boundary value area is equivalent to the process alarm boundary value configuration in I/O parameter setting window as shown in the following figure.

Process alarm hysteresis setting area (address 43~46); Process alarm HYS

1. If it is set out-of-range, 0 (no hysteresis) is set internally; %UXa.b.24 ~ 27 (setting error flag) is set. The bit, 10 of setting error information area (address 60 ~ 63) is ON.

2. If it is within the range even in alarm reset condition during use of process alarm function, it maintains alarm output.


For more information, refer to Specifications.



Address Description

Address 43 CH 0 process alarm hysteresis setting area




3. The process alarm hysteresis area is equivalent to the process alarm hysteresis configuration in I/O parameter setting window as shown in the following figure.

Alarm type setting area of Rate Change alarm (address 47); RCA type

1. If setting the bit as 1, Rate Change alarm type of a channel is set for the temperature Rate Change alarm; if setting the bit as 0, Rate Change alarm type of a channel is set for the temperature Rate Change alarm.



2. Information configured in bit 4~15 is ignored.

BIT Description

0 Temperature change

1 Temperature Rate Change

3. The Rate Change alarm setting type area is equivalent to the Rate Change alarm setting type configuration in I/O parameter setting window as shown in the following figure.



Rate change alarm H./L. boundary value setting area (address 48~55); RCA high limit, RCA low limit

1. The unit for change value alarm is temperature and the unit for Change Rate alarm is % showing one decimal place. (Rate change calculation is based on sensor type and maximum range of input setting.)

2. If it is set out-of-range, it maintains the settings saved in the module. If the previous setting is unknown, it is necessary to re-set the accurate range: %UXa.b.24 ~ 27 (setting error flag) is ON. The bit, 11(H Rate Change)/12(L Rate Change) of setting error information area (address 60 ~ 63) is ON.

Address Description

Address 48 CH 0 Rate Change alarm H. boundary value setting area

Address 49 CH 0 Rate Change alarm L. boundary value setting area









3. The Rate Change alarm H./L. area is equivalent to the Rate Change alarm H./L. configuration in I/O parameter setting window as shown in the following figure.

Rate change alarm detection period setting area (address 56~59)

1. Area to set the detection interval, in case if you use Rate Change alarm function.

2. If an out-of-range value is set, it sets 40ms internally; %UXa.b.24 ~ 27 (setting error flag) is ON. The bit, 13 of setting error information area (address 60 ~ 63) is ON.



Address Description

Address 56 CH 0 Rate Change alarm detection interval setting area




3. The Rate Change alarm detection period area is equivalent to the Rate Change alarm detection period configuration in I/O parameter setting window as shown in the following figure.

5. Internal Memory 5.4. Other data monitoring setting area


5.4 Other data monitoring setting area It describes the area to monitor flag information for setting error in case of setting operation parameter with program and read input Rate Change for detection interval if Rate Change alarm is used. In addition, it describes how to read the error code in case of sensor disconnection and monitor cold junction temperature.

Setting error information output area (Address 60~63) 1. In case the settings are out-of-range (if set by program), the bit is output with 1.

2. Setting error is reset as long as it is re-set within normal range by reset.

3. In case of setting error, the module LED does not change. In case the junction of %UXa.b.24 ~ 27 is ON, it checks the area and fixes the area correctly.

BIT Description Address

0 Sensor type setting error 1~4

1 Filter value setting error 6~9

2 Averaging type setting error 10~13

3 Average value setting error 14~17

4 Min. scale range setting error 19,21,23,25

5 Max. scale range setting error 20,22,24,26

6 H.H. process alarm value setting error 27,31,35,39

7 H. process alarm value setting error 28,32,36,40

8 L. process alarm value setting error 29,33,37,41

9 L.L. process alarm value setting error 30,34,38,42

10 Process alarm hysteresis setting error 39~46

11 H. Rate Change alarm value setting error 48,50,52,54



BIT Description Address

12 L. Rate Change alarm value setting error 49,51,53,55

13 Rate Change alarm detection interval setting error

56~59

Address Description

Address 60 CH 0 setting error info display area




Rate Change alarm output area (Address 64~67) 1. It outputs temperature changed during detection interval set or the Rate Change (%

of sensor range).

Address Description

Address 64 CH 0 Rate Change alarm output area






2. The area shows the same results of I/O parameter rate change configuration.

Sensor disconnection information output area (address 68~71)

1. If a disconnection code occurs in the area, check the sensor’s connection with the channel.

2. In case of thermocouple sensor disconnection, temperature output displays maximum output.

3. In case of cold junction sensor disconnection, temperature output is output without RJC compensated.



Address Description

Address 68 CH 0 sensor disconnection info output area




Cold junction compensation temperature output area (Address 72~75) 1. It is the area displaying RJC sensor measuring temperature for reference junction

temperature compensation.

Address Description

Address 72 CH 0 cold junction compensation temperature output area







6. Programming

6.1 Read/write operation parameter setting area It describes internal memory configuration.

Read operation parameter setting area (GET, GETP Instruction)

Type Description Available area

n1 Slot number with special module Integer

n2 Initial address of special module operation parameter setting area to read data Integer

D Initial address of address to save data to read M, P, K, L, T, C, D, #D

n3 Number of words to read Integer

Difference of GET instruction and GETP instruction:

• GET: always executes with execution condition of ON. ( )

• GETP: executes with commencement of operation in execution condition. ( )

For example, in case the thermocouple module is installed on #0 base and #3 base and the internal memory address is 0, 1 data of thermocouple module is read by CPU module D0 and D1.

6. Programming 6.1. Read/write operation parameter setting area


Write operation parameter area (PUT, PUTP instruction)

Type Description Available area

n1 Slot number with special module Integer

n2 Initial address of special module internal memory to write data

Integer

S Initial address or integer of an address containing data to write

M, P, K, L, T, C, D, #D, integer

n3 Number of words to write Integer

Difference of PUT instruction and PUTP instruction:

• PUT: always executes with execution condition of ON ( )

• PUTP: executes with commencement of operation in execution condition ( )

6. Programming 6.1. Read/write operation parameter setting area


For example, in case the thermocouple module is installed on #0 base and #6 slot and the internal memory address 1 ~ 4 of thermocouple module is written to CPU module D3 ~ D6.

6. Programming 6.2. Basic program


6.2 Basic program It describes how to set operation conditions in the internal memory of thermocouple module.

• Thermocouple module is installed on slot 3.

• An I/O occupation point of thermocouple module is 64 (fixed).

• Regarding the initial condition, if saved once the initial settings are saved in the internal memory of thermocouple module.

Example using I/O parameter setting

6. Programming 6.2. Basic program


2. Example of program using PUT/GET instruction.

6. Programming 6.3. Application program


6.3 Application program Temperature conversion value determination program (I/O slot fixation point assignment: 64 point).

System configuration

Initial settings

No. Item Initial Settings Internal Memory Address

Value to Write to Internal Memory

1 CH CH0, CH1 0 ‘h0003’ or ‘3’

2 Sensor type CH0 : type K 1 ‘h0000’ or ‘0’

CH1 : type K 2 ‘h0000’ or ‘0’

3 Temperature indication Celsius 5 ‘h0000’ or ‘0’



Program description a) If P0081 is ON, it reads data of the internal memory of the thermocouple input

module.

b) If the temperature input through CH0 is lower than –20o C or larger than –30 o

c) If the temperature input through CH1 is lower than –20

C, P0000 is On. o C or larger than –30o

d) If the difference of temperatures input through CH0 and CH1 is larger than 5

C, P0001 is On. o

− 2MLF-TC4S module is installed on the basic base #3 slot of 2MLK PLC.

C, P0002 is On.

− Set CH0 and CH1 as type K.

− Indicates CH0 and CH1 as Celsius.

Program a) Example of program using I/O Parameter setting.



ATTENTION

If every channel is set identically in the above parameter setting window, select the checkbox and set only one channel. Then, every channel would have the same setting.

CH data monitor program (I/O slot fixation point assignment: 64points)

This program saves temperature conversion output into address K, if channel is operating with module ready or saves minimum/maximum value of channel to address D, if channel maximum/minimum searching junction is allowed.





Viewing CH data in Special Module Monitoring window

Other data monitoring programs

• 2MLF-TC4S module is installed on the basic base #3 slot of 2MLK CPU.

• Every channel is set to Type K.

• Every channel displays temperature in Celsius.



Operation parameter setting



Program

It delivers timer count by module’s internal timer when it delivers temperature to PLC in module. If calculating the difference of the previous timer count (M1000/M1002/M1004/M1006) and the current timer counter, the value calculated is the interval at which module delivers data to PLC (here, the interval delivered by module is conversion speed).


7. Troubleshooting

7.1 Introduction This chapter describes diagnostics and corrective measures in case if any trouble occurs during the use of 2MLF-TC4S.

7.2 LED indication by errors 2MLF-TC4S has two LEDs and it is possible to check whether it has any error with the indication of RUN LED and ALM LED.

Item Normal Disconnection Abnormal module

H/W (error)

Module offset/gain backup error

(memory checksum if powered on)

RUN LED ON ON Flicker every 0.2s

Flicker every 1s

ALM LED OFF Flicker every second OFF OFF

Operation

Normal operation Every function works

Normal operation Every function works

Module function stops

Normal operation

Every function works

Management - - Customer service

Try to power on again and if it still shows error,customer service is needed

7. Troubleshooting 7.3. Diagnostics and measures


7.3 Diagnostics and measures Run LED quickly flickers

Run LED slowly flickers

7. Troubleshooting 7.3. Diagnostics and measures


Run LED turns off

7. Troubleshooting 7.4. Error code


ALM LED flickers

CPU module cannot read temperature conversion value



7.4 Error code Error codes of abnormal sensor connection (in case of sensor disconnection)

Description RUN LED

status

ALM LED

status

Junction

(on)

Code

PUT command (*1)

Class

Normal operation ON OFF - 0 Normal

CH 0 thermocouple sensor disconnected ON

Flickers every second

Uxy.01.4 Address 68(h044) 1

Defective sensor

CH 0 cold junction sensor disconnected ON



Defective sensor




Defective sensor




Defective sensor




Defective sensor




Defective sensor




Defective sensor




Defective sensor

(*1) Indicates the case of disconnection, for code information refer to address.



Error codes of abnormal module H/W (contact the close agency or the company)

Description RUN LED status

ALM LED

status Junction

(on) Code(*2) Class

EEPROM CHECKSUM ERROR


OFF Uxy.00.D Module error:40 Error

FACP_01 chip reset error

Flickers every 0.2s OFF Uxy.00.E Module

error:10 Error

FACP_01 internal RAM error


error:11 Error

FACP_01 internal register error


error:12 Error

REFERSH area writing error in module


error:30 Error

FRESH area reading error in module


error:32 Error

AD conversion H/W error


error:2x(*3) Error

(*2) Indicates that the module H/W trouble information displays in module OS information window.


For additional information on module OS, refer to Operations and Monitoring.



(*3) Indicates that in 2x, x represents the number of channel with AD conversion H/W error. The module, as inter-channel isolation module, has H/W converting analog to digital, which independently operates.




8. Appendix

8.1 Terminology Terms and abbreviation used in this user’s guide and the analog module in general are as described below.

• A/D converter: converts analog to digital value proportionately to the size of analog input signal.

• Analog input module: as a module with the circuit to convert analog voltage/current input signal to digital value, it has resolution of 14 and 16 bits according to converters.

• Channel: related with the terminal of analog I/O module and connected to various voltage/current I/O devices, respectively, with applicable data and diagnosis function.

• Conversion time: time necessary for analog input module to sample and convert the analog signal for the processor inside the module to get digitally-converted value input. On the other hand, it is necessary for analog output module to convert the digital value output from the processor inside the module to analog output signal so to transmit the output channel.

• D/A converter: related with the output module, it is used to change the continuous size of analog voltage and current signal proportionately to the digital value.

• Full scale: defined as the size of voltage/current where the normal operation is executed.

• Full scale error: displays the graph difference between agreeable analog-converted value and actual analog-converted value.

• Full scale range: displays the difference between the maximum and the minimum of the analog input.

• LSB (Least Significant Bit): displays the minimum value of the bit unit.

• Linearity error: analog I/O is related between continuous voltage/current value and digital value, whose agreeable I/O value is defined as a line within a distance of the minimum 1LSB of voltage/current. I/O linearity error is regarded as the declination between the agreeable-converted value and the actual-converted value on the graph.

8. Appendix 8.1. Terminology


• Multiplexer: a switching circuit where many signals share one A/D converter or D/A converter.

• Analog output module: a module with output circuit to convert analog DC voltage or current signal proportional to digital value delivered to the module from the processor.

• Resolution: the minimum value recognizable by a measuring instrument, which usually displays in the engineering unit (1mv) or the number of bits. In other words, 16383 types of output are available for 14 bits.

• Filter: used to reduce the change of the digitally-converted output value by sudden change of the external noise or input for the analog circuit, through two methods of Software and Hardware filters.

• Accuracy: displays the maximum declination between agreeable value and output voltage or current for the whole range of output. On the other hand, it is displays the maximum declination between agreeable value and digitally-converted input signal value for the whole range of input. Generally, percentage displays for the full scale.

• Gain, Offset and Linearity error are all included in the error type available.

• Output accuracy: displays the difference between the actual analog output voltage/current value and the agreeable-converted value on the conversion graph for the full scale, with Offset, Gain, and Drift error factors included as well as normal temperature (25°C) and available temperature range displays, respectively.

8. Appendix 8.2. Thermo electromotive force and compensating cable


8.2 Thermo electromotive force and compensating cable Table of thermo electromotive force







Thermocouple

Common limit and overheat limit

Symbol of materials

Former symbols

(cf) Nominal

diameter (mm) Common limit

(1) °C Overheat limit

(2) °C

B − 0.50 1500 1700

R − 0.50 1400 1600

S

K CA

0.65 650 850

1.00 750 950

1.60 850 1050

2.30 900 1100

3.20 1000 1200

E CRC 0.65 450 500

1.00 500 550



Symbol of materials

Former symbols

(cf) Nominal

diameter (mm) Common limit

(1) °C Overheat limit

(2) °C

1.60 550 650

2.30 600 750

3.20 700 800

J IC

0.65 400 500

1.00 450 550

1.60 500 650

2.30 550 750

3.20 600 750

T CC

0.32 200 250

0.65 200 250

1.00 250 300

1.60 300 300

ATTENTION

1. Common limit refers to the temperature limit that continuously use in the air.

2. Overheat limit refers to the temperature limit that inevitably use for a short time.

Allowance by temperature

Symbol of materials

Former symbols

(cf) Temperature Grade Allowance

B − 600°C ~ lower than 1700°C 0.5 ±4°C or ± 0.5% of

temperature measured

R − 0°C ~ lower than

1600°C 0.25 ±1.5°C or ±0.25% of temperature measured S



Symbol of materials

Former symbols

(cf) Temperature Grade Allowance

K CA

0 °C ~ lower than 1000°C 0.4 ±1.5°C or ±0.4% of


0°C ~ lower than 1200°C 0.75 ±2.5°C or ±0.75% of


-200°C~ lower than 0°C 1.5 ±2.5°C or ±1.5% of


E CRC

0°C~ lower than 800°C 0.4 ±1.5°C or ±0.4% of




-200 °C~ lower than 0°C 1.5 ±2.5°C or ±1.5% of


J IC

0°C~ lower than 750°C 0.4 ±1.5 °C or ±0.4% of




T CC



0°C~ lower than 350°C 0.75 ±1°C or ±0.75% of


-200°C~ lower than 0°C 1.5 ±1°C or ± 1.5% of


ATTENTION

Allowance refers to the allowable maximum limit subtracting the actual temperature of junction from the converted temperature, based on thermo electromotive force table of standards. In addition, the allowance will be greater than °C or %.



Compensating cable

Type and specifications of compensating cable



ATTENTION

1. BX-G uses same copper to + point and – points, so the allowance is not described.

2. The thermocouple electromotive force of thermocouple R and S is non-linear, so it does not indicate the actual temperature measurement error.

3. Applicable to nominal cross-sectional area of 1.25mm2

and more.

8. Appendix 8.3. Dimension


8.3 Dimension 2MLF-TC4S





Honeywell Process Solutions 1860 W. Rose Garden Lane Phoenix, AZ 85027 USA

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