1. SSE Remote Telemetry Unit SSE RTU

2. Telemetry Systems …40-20 Years Ago
Rural Pumping Schemes – Controlled by hand
Urban Schemes – Controlled by Relay Logic & Instrumentation
Very Basic Telemetry Systems – Hard Wired with Mimic
Radio Telemetry – Starting to emerge for remote control.
SSE 10years,based in Pretoria,36 staff,Branch Cape Town.
Manufacture Telemetry, Antennas,Import MDS Radios.

3. …15 to 20 Years Ago
Demand for Operational Function – Alarms & Remote Control
Slow Radios (300 Baud) Installed – Limited Data Throughput
“Cable Replacer” Type Telemetry System
Control – Relay Logic/Basic PLC
Small Amount of Data – Mainly Basic Alarming & Limited Control
Master Station – Mainly Mimic Panels & DOS Based SCADA
SSE 10years,based in Pretoria,36 staff,Branch Cape Town.
Manufacture Telemetry, Antennas,Import MDS Radios.

4. Typical Telemetry Network – Then!

5. Evolution of Technology
Driven by two main influences
From Client Side (Pulling forces):
Plants and distribution networks got more complex.
The demand for more information at a quicker rates.
Better / Faster service delivery.
From Technology offerings (Pushing forces):
New technologies offer better and smarter solutions
Faster processing power.
More robust communication networks.
Scada Application

6. Modern RTU’s Compact – more I/O with smaller footprint
Connect to all wide area networks – compatible with new IP based networks
Intelligent – PLC Based processing capabilities
OPC Compliant Software – open standard for industrial applications
Remote Diagnostics – Network wide fault finding and configuration tools
Support for IED’s – protocol support for intelligent devices
Protocol Standardization
SSE 10years,based in Pretoria,36 staff,Branch Cape Town.
Manufacture Telemetry, Antennas,Import MDS Radios.

7. SSE Design Philosophy Client Requirement driven. Technology driven.
Follow well established engineering practises.
Hardware & Software are modular in design.
To design products that are:
Economical
User friendly
Open
Compatible
Expandable
Always backwards compatible to older version RTU’s 7

8. Typical Telemetry System Layout
SCADA, MES &
Information Systems
Backhaul
Communication
Network
Monitoring Equipment
RTU’s
Interfacing &
Connectivity
Instrumentation & IED’s
Security &
Access Control
Actuators
Flow Meters
Energy
Meters
Soft
Starters
PLC’s 8

9. SSE RTU-12 Features Instrumentation & IED’s:
A wider choice of instruments.
Different interface signals:
4-20 mAmp, mAmp
Volt & mVolt.
Frequency & pulses.
Micro Processor based instruments got more an more popular.
Intelligent Electronic Devices (IED’s)
IED’s with Direct communication capabilities.
Running different protocols,
At different baud rate,
Using different communication mediums.
IED’s got more and more popular, but started posing more and more interfacing challenges.
PLC’s
Actuators
Flow Meters
Soft
Starters
Energy
Meters
Security &
Access Control

10. SSE RTU-12 Features…cont.
PLC’s
Actuators
Flow Meters
Soft
Starters
Energy
Meters
Security &
Access Control
Interfacing:
Discrete signals via conventional cabling
IED’s supported on a wide variety of interfacing and communication network’s
RS-232
RS-485
Ethernet LAN
Etc
RTU-12 Equipment supports these mediums simultaneously

11. SSE RTU-12 Features…cont.
Communications Backhaul:
Communication between remote RTU’s and Master SCADA computers.
Protocols:
DNP-3 Slave.
IEC
Modbus.
DF-1
Enermax.
Etc.
Running different communication mediums:
Analogue Radio.
Data Radio.
Dial-Up.
SMS / GPRS / 3G.
Fibre Optic.
LAN
Wireless LAN.
Wi-Max
Satellite.
PLC’s
Actuators
Flow Meters
Soft
Starters
Energy
Meters
Security &
Access Control

12. SSE RTU-12 Features…cont.
PLC’s
Actuators
Flow Meters
Soft
Starters
Energy
Meters
Security &
Access Control
RTU-12 Summary:
Monitor discrete I/O.
Interface simultaneously with IED’s on multiple protocols and on multiple mediums.
Backhaul comms interfacing on multiple protocols and on multiple mediums.
Data concentrator and manager.
Configurability vs Programmability.
PLC like programming for local or distributed control.
Intelligent data logger with event reporting and time stamping to 1ms resolution.
Advanced alarming direct to users cell phone via SMS.
Comprehensive configuration toolbox.
Advanced diagnostics functionality.
Comms Mediums
RS-232 / RS-485
Analogue Radio
Digital Radio
Dial-Up
SMS / GPRS / 3G
Fibtre Optic
Ethernet
Wi MAX
Satellite
Protocols
DNP-3
IEC
TCP-IP
Modbus
DF-1
Protocols
Modbus
DF-1
DNP3 Slave
IEC
Hart
Enermax
ABB Magmaster
Comms Mediums
RS-232
RS-485
Discrete IO’s
4-20mAmp
Voltage
Pulses
Frequency
Etc

13. The Road ahead Six new product releases in the next 12 Months.
Maestro 2000 RTU : June 2011.
Based on RTU-12 technologies.
Speed : 3 MIPS
New Enclosures.
Memory : 640 K
New Switch-mode PSU.
Maestro 4000 RTU : Feb 2012
Complete new Hardware design
Speed : 66 MIPS
Memory : 64 Meg.
4 RS 232 Ports standard / One Isolated RS-485 optional
Ethernet Port.
USB Port.
Serial / Remote IO Modules.

14. The Road ahead IO Expansion Modules : Feb 2012
Highspeed Serial Interfacing between RTU & IO Modules.
Processor on each IO Module.
Remote IO’s.
1 msSec Time Stamping.
Maestro 8000 RTU : Sept 2012
Complete new Hardware design.
Speed : 250 MIPS
Memory : 64 Meg.
Run Real-time Operating System : Linux
4 RS 232 Ports standard / One Isolated RS-458 optional
Ethernet Port.
USB Host & Device.
Serial / Remote IO Modules.
1028 AIN, 1028 DIN, 1028 DOT, 1028 CIN, 512 AOT, 1028 FIN