The City of Spokane is initiating an upgrade to a large portion of the existing SCADA system’s software for the Water and Hydroelectric Department’s operations at the Upriver Facility. The SCADA functions include equipment/machinery control, data acquisition, data historization, asset management, alarming, and site security. The SCADA system uses wired ethernet/fiber, wireless ethernet (IP radios), and serial (RS485 on radios) connections. There are two distinct sides to the SCADA system: Water production/distribution, and the Hydroelectric Project. The Water production and distribution system consists of eight Well Stations, twenty-eight Booster Stations, and thirty-eight Tanks all remotely controlled from a central control room. Operational control of these sites is by Allen Bradley PLCs and 900 Mhz and broadband radios (IP and serial in a distributed control configuration), and consists of pump control, data from sensors and alarms, building environmental, and site security. The Hydroelectric Project consists of two Powerhouses, five generators, a spillway with 8 gates, and other related appurtenances. Operational control of these sites is by wired ethernet (copper and fiber) and consists of generator and governor control, gate operation, data from sensors and alarms, building environmental, and site security.
