Telemetry and Remote SCADA Solutions Presented by Alan
Hudson
Slide 2
Schneider Electric 2 | Jeff M. Miller | 2014 MWEA & AWWA-MO
Joint Annual Meeting | 10:30 Monday March 31 st, 2014Questions:
Schneider Electric Session Title Smart Cities for Smart Water: A
Workshop What is Telemetry? What is SCADA? What is Remote SCADA?
What is a Telemetry and Remote SCADA Solution? SCADA for Remote
Devices All of the above as a solution. Communication with Remote
Devices over a medium like radio, telephone, satellite, etc.
Supervisory Control and Data Acquisition. Often an incorrect
synonym for host software.
Slide 3
Schneider Electric 3 | Jeff M. Miller | 2014 MWEA & AWWA-MO
Joint Annual Meeting | 10:30 Monday March 31 st, 2014 By End of
This Session, You Will Know The many components of TRSS* The
current trends for TRSS The meaning of communication protocols The
latest in TRSS technologies New applications for TRSS *TRSS =
Telemetry and Remote SCADA Solutions
Slide 4
Schneider Electric 4 | Jeff M. Miller | 2014 MWEA & AWWA-MO
Joint Annual Meeting | 10:30 Monday March 31 st, 2014 UNDERSTANDING
THE BASICS
Slide 5
Schneider Electric 5 | Jeff M. Miller | 2014 MWEA & AWWA-MO
Joint Annual Meeting | 10:30 Monday March 31 st, 2014 Telemetry
& Remote SCADA Solutions Integrated SCADA Software,
Ready-to-Use Telemetry and Configuration Wide area SCADA for
critical Infrastructures Wide range of open protocols / interfaces:
Modbus, DNP3, Ethernet, OPC, SQL, Host SCADA Radios (Licensed /
non-licensed), phone, cell Serial / Ethernet connection Support of
Modbus / DNP3 protocols Communication Medium Cost effective,
scalable, environmentally rugged Modbus / DNP3 communications
Programmable or configurable RTU / PLC Rapid-deploy, self
contained: Instruments, transmitters, meters, VFDs, intelligent
power systems, etc. Field Devices Operation / Business Systems
Products & Systems
Slide 6
Schneider Electric 67 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Wireless Basics Terminology Amplitude is the power of a radio
signal >Often represented in decibels (dB). >3dB = 2 x Power,
10dB = 10 x Power, 20dB = 100 x Power >dB is a logarithmic ratio
that simplifies calculations. Transmitter Power >Measured in
Watts or dBm (dBm is relative to 1mW ) >dBm=10 Log P2/P1 where
P1=1mW >1 Watt = 30 dBm, 100 mW = 20 dBm >A 1 Watt (30dBm)
radio transmits a stronger signal than a 100 mW (20dBm) radio
>Transmitted Power dissipates in space losing 6 dB every time
the distance is doubled. Receiver Sensitivity >Measured in uV or
dBm and represents how weak a signal the receiver can hear
>Sensitivity of 96 dBm is 3.51 uV Antenna Gain >Measured in
dBi (dB relative to an isotropic antenna) or dBd (dB relative to a
dipole) Conclusions >Transmitter and Receiver parameters are
always relative to a level (dBm) >Signal Loss and Attenuation
are absolute values (dB) >Radio performance is a combination of
transmit power AND receive sensitivity. >A radio with 104 dBm
receive sensitivity will hear signals that a 96 dBm radio will
notno matter how strong the signal was when it was transmitted.
>Note that a radio with 104 dB sensitivity will operate at
approximately twice the range of 96 dB radio. 6 dB = double the
range.
Slide 68
Schneider Electric 68 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Wireless Basics Free Space Loss Represents the ttheoretical RF loss
(attenuation) (in dB) over a distance in a vacuum. Real World path
loss will always be higher Calculated with this formulae: L = Free
Space Loss (dB) r = distance in meters = wavelength in meters
Slide 69
Schneider Electric 69 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Wireless Basics Total System Gain = Coaxial Cable Loss = 2dB
Coaxial Cable Loss = 1dB Path Loss Loss = 130dB Green = Add to
Budget Red = Subtract from Budget Omni Antenna Gain = 6 dBi Yagi
Antenna Gain = 9 dBi Transmitter 1W Gain = 30 dB Transmitting Radio
Receiving Radio BER = -108 dBm @ 10^6 +30+28 +34 -96-87-88 BER =
-108 dBm @ 10^6 Fade Margin = + 20dB Fade Margin - What is fade
margin? RF signal into receiver over and above 1E-6 BER level.
Maintains link quality if signal fades due to: Reflections, Rain
Loss, Maintenance Problems.
Slide 70
Schneider Electric 70 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Wireless Basics RF coverage, planning and the level of
infrastructure required differ depending on the spectrum
utilized.
Slide 71
Schneider Electric 71 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014 Radio
Path Study A radio path study is a valuable analysis tool used to
determine radio signal loss over a terrain profile. It can help in
determining critical system components like radios, antennas,
towers, repeater stations and system layouts. A typical study is
generated from customer- supplied GPS coordinates utilizing
specialized software tools. As part of our ongoing program of
dedicated customer support, we offer Radio Path Study services free
of charge: Complete the excel-based Path Study request at Path
Study Request FormPath Study Request Form Submit form to
[email protected] (allow 2 weeks for
study)[email protected]
Slide 72
Schneider Electric 72 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Accessories - Antennas Antennas come in various shapes and sizes.
In general, there are two main types Directional Parabolic Antenna
Directional Yagi Antenna Omni Directional Co-linear Antenna
Omni-directional Directional Omni Directional Dipole Antenna
Slide 73
Schneider Electric 73 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Accessories - Other Other critical components in a wireless system
includes RF cable, lightning arrestor, Omni-directional and
directional antennas. Coaxial Cable & Connectors Surge
Protector/ Lightning Arrestor Duplexers DIN Rail Kits
Slide 74
Schneider Electric 74 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
TYPICAL APPLICATIONS
Slide 75
Schneider Electric 75 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Accutech Products in WWW Level These wireless tank level field
units use a submersible pressure sensor to provide hydrostatic
level of a vented tank or well. Specific-gravity correction and all
common level units are offered. Flow Open channel flow may be
measured from liquid level using the DP20 wireless differential
pressure sensor. When the DP20 operates in Open Channel Mode it may
be configured with a K factor to report directly in units of flow.
Channels with irregular dimensions can be accommodated using an
additional 22-point custom curve. TM10 Turbine Meter Totalizer DP20
Differential Pressure Meter SL10 Submersible Level Meter GL10 Gauge
Level Meter
Slide 76
Schneider Electric 76 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st, 2014
Accutech in Irrigation The irrigation market is perhaps the best
suited to Accutech, with monitoring points almost always located at
a distance with no possibility for power. Current opportunities on
the US West Coast include well/reservoir/aquifer/canal level
monitoring. Accutech SL10 submersible level field units are the
product of choice for these applications. The SL10 wireless field
units use a submersible pressure sensor to provide hydrostatic
level up to 100 (30m) depth. Accutech SL10 Submersible Level
Slide 77
Schneider Electric 77 | Jeff M. Miller | 2014 MWEA &
AWWA-MO Joint Annual Meeting | 10:30 Monday March 31 st,
2014Schneider Electric Telemetry and Remote SCADA: Accutech Product
Line Overview Accutech in Treatment Plants Treatment plants often
require monitoring points which are either at a distance or in
areas where wiring is problematic, examples include: Digester gas
applications (i.e. volume measurement, flow, DP) Headworks
monitoring (i.e. rpm measurement of rotating screens) Pressure and
level. While in-plant applications are not a prime target for
Accutech there do exist processes which remain difficult to wire /
service that are outside the plant.