Title
Installation of a Redundant PLC for SCADA System
History
The Village of Orland Park operates a water distribution system and sanitary/storm collection system across twenty-five (25) different locations. These sites include seven (7) water towers, three (3) booster stations, one (1) main pumping station, thirteen (13) lift stations, and one (1) storm station.
The Utility Division of Public Works has used the Supervisory Control and Data Acquisition (SCADA) system since 1985. The system provides twenty-four (24) hour monitoring and controls for the Village’s water and sanitary system.
The Village experienced an Uninterrupted Power Supply (UPS) failure at the Main Pump Station on August 25, 2024, which caused the master Programmable Logic Controller (PLC) to lose power. As a result, the main station pumps shut down, and communication was lost to all the remote sites.
The Utility Department held a meeting with the IT Department and Concentric Integration of Crystal Lake, Illinois. Concentric was previously selected in 2012 as the Village’s vendor for SCADA. Concentric Integration recommends installing a backup PLC at Village Hall to increase redundancy and reduce the likelihood of this happening again. Although this backup PLC would not be able to run the pumps at the main pump station during a power failure, it would trigger an alarm that communication was lost. Also, if the connection between Village Hall and the Main Pump Station was severed, it would still allow continued monitoring and alarms for the rest of the system.
Due to the complexity of the current SCADA system and the historical knowledge of critical Village’s water system, a sole source proposal for equipment and software upgrades was requested from Concentric Integration of Crystal Lake, Illinois. Concentric has an overall understanding of the project, with the ability to provide continued support. Concentric’s proposal details the cost of the components needed and complete installa...
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