The document discusses how Left Hand Water District modernized their SCADA system to reduce operation costs. It overviews their planning process, hardware and software implementation, and economic advantages. They standardized on Allen-Bradley and Rockwell software for controllers and interfaces. This allowed for remote monitoring and control, reduced travel and maintenance costs, and implemented on-call shifts. The modernized flexible and expandable system provided greater efficiency, reliability, safety and security for the water district.

1. Reducing Operation
Costs Through SCADA
System Modernization
Tom Haensel, P.E., Burns & McDonnell Engineerng, Inc.
Jan Toniazzo, Treatment Operator, Left Hand Water District
RMSAWWA/RMWEA 2002
ANNUAL CONFERENCE

2. Agenda
• Left Hand Water District Overview
• SCADA Definition
• SCADA Modernization Planning
• Implementation
• Economic Advantages
• Questions

3. Left Hand Water District

4. SCADA Defined
What is SCADA?
• One Supervisory Controller (Master)
• Multiple Sub-Controllers (Slaves)
• Possible Sub-Master Controllers
• Supervisory Control And Data Acquisition

5. SCADA System
Architecture
Water Tank Pump Station
Slave
PLC
Slave
PLC
Control Valve
Master PLC
Water Treatment Plant
Slave
PLC
Pump Station
Network, Fiber
Optic, or Phone
Line
Operator
Workstation
Printer
Slave
PLC
Sub-Master
PLC
Slave
PLC
Filter Control

6. SCADA Modernization
Planning
• Graphical Representation of Entire System
• Continuous Information at Operator Workstations
• Automatic Control
• Remote Control
• Alarming/Paging
• Trending/Reporting
• Easily Expandable
GOALS

7. Implementation
Hardware
• Programmable Logic Controllers (PLC’s) - Standardized on
Allen-Bradley SLC and Micrologix controllers

8. Implementation
Hardware
• Programmable Logic Controllers (PLC’s) - Standardized on
Allen-Bradley SLC and Micrologix controllers
• MAS/MDS radios and modems for Radio Communication

9. Implementation
Hardware
• Programmable Logic Controllers (PLC’s) - Standardized on
Allen-Bradley SLC and Micrologix controllers
• MAS/MDS radios and modems for Radio Communication
• Mille Research modems for Phone Line Communication

10. Implementation
Software
• Standardized on Rockwell Software
• RSLogix for programming
• RSLinx for communications
• RSView for Operator Interface
• RSMessenger for Alarm Paging
• LapLink Software allows connection to operator workstation
from a remote computer through a dial-up modem

11. Implementation
Expandable and Flexible
• System must be easily expandable
• Implement additional sites without plant shutdown
• Allow for additional I/O and control philosophy changes
• System must be flexible
• Allow for a variety of communication interfaces
• Allow for a variety of instrumentation

12. Economic Advantages
• Implementation of “On-Call” shifts

13. Economic Advantages
• Implementation of “On-Call” shifts
• Reduced Operator Travel Time

14. Economic Advantages
• Implementation of “On-Call” shifts
• Reduced Operator Travel Time
• Greater Speed, Accuracy, and efficiency

15. Economic Advantages
• Implementation of “On-Call” shifts
• Reduced Operator Travel Time
• Greater Speed, Accuracy, and efficiency
• Increased Reliability

16. Economic Advantages
• Implementation of “On-Call” shifts
• Reduced Operator Travel Time
• Greater Speed, Accuracy, and efficiency
• Increased Reliability
• Reduced Maintenance

17. Economic Advantages
• Implementation of “On-Call” shifts
• Reduced Operator Travel Time
• Greater Speed, Accuracy, and efficiency
• Increased Reliability
• Reduced Maintenance
• Safety and Security

18. Questions
Tom Haensel, P.E., Burns & McDonnell Engineerng, Inc.
Jan Toniazzo, Treatment Operator, Left Hand Water District
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