WBUD operates 32 pump and tank stations spanning multiple counties.
All sites required automation, with access to comprehensive device management—both locally and remotely—across an expansive area.
Automated Water Purification and Storage System
CIMON Automation Provides Accessible Monitoring and Control for Water Purification and Storage System
WBUD operates 32 pump and tank stations spanning multiple counties. All sites required automation, with access to comprehensive device management—both locally and remotely—across an expansive area.
Each site received a programmable logic controller (PLC) and human-machine interface (HMI) for automation and control. A radio network connects all sites to a central supervisory control and data acquisition (SCADA) system, providing long-distance operation and data monitoring.
CIMON’s UltimateAccess SCADA program allows real-time and historical data from all sites to be accessed from any location. Schedules and programs can be updated remotely, removing the need for time-consuming and expensive on-site visits.
With funding from the Tennessee Valley Authority, Watt Bar Utility District (WBUD) needed to streamline automation of its 32 tank and pump stations. System integrator Quality Controls LLC decided to use PLC, HMI, and SCADA products from CIMON to automate these facilities.
At each location, a CIMON Xpanel HMI lets users manage on-site pumps and tanks. Different screens allow engineers to view status and alarms, as well as diagnose and test pumps during maintenance. A CIMON PLC takes in data from sensors and outputs electrical signals to the pumps. A program automatically switches between different modes of operation, allowing for schedule-based or level-based control. The PLC also acts as a bridge between devices by storing, receiving, and sending data. When a malfunction occurs, the PLC sends a warning signal to both the SCADA program and the local HMI.
Radio transmitters were integrated into the network to overcome the immense cost and communication difficulties of laying wire through mountainous terrain. Data values are sent to a central location, then processed by the UltimateAccess SCADA application. User requests are then sent back over the radio to the corresponding PLC, which performs the desired action.
The combined usage of PLC, HMI, and SCADA technologies from CIMON will allow WBUD to more effectively manage its pump and tank stations.