Hemphill Water Treatment Plant SCADA Improvements RFP

Description: This project will support the modernization and reliability of process control, monitoring, and automation functions essential to plant operations. The City is seeking qualified firms with demonstrated experience in SCADA system upgrades, integration with existing water treatment processes, and implementation of new control system components. Replace obsolete control system hardware (including discontinued ControlLogix PLCs, Remote I/O systems, PanelView OITs, and Flex I/O components) with new 5580 series PLCs, Flex 5000 I/O, updated communication modules, and new enclosures where required. Upgrade all plant-wide control networks, removing legacy ControlNet cabling, taps, and bridges, and replacing them with Ethernet/IP networks using device‑level rings (DLR), multimode fiber, and updated Cisco industrial switches. Replace the existing iFix SCADA HMI system with AVEVA System Platform, including updated HMI screens, workstation configurations, communication settings, and tag database modifications necessary for new hardware.