SCADA System

SCADA is an acronym for Supervisory Control And Data Acquisition. It is a technology which allows the treatment plant operator to get continuous information on the plant’s processes and to exercise programmatic control over those processes. For example, a bar screen can be programmed to operate more frequently under high influent flow conditions, or a valve actuator can be made to maintain a certain flow through a flow meter.

SCADA systems can also log real-time data for later reference. Historical data is very important to the treatment plant operator. It is used to help understand the plant’s operating characterics, and how it responds to changing conditions.