Supervisory control

Supervisory control is a general term for control of many individual controllers or control loops, whether by a human or an automatic control system, although almost every real system is a combination of both. A more specific use of the term is for a SCADA system, or Supervisory Control and Data Acquisition system, which refers to a specific class of system that can be purchased, usually for use on fairly small remote locations such as a pipeline transport , water distribution, or wastewater utility system station.
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The use of characters or signals for the automatic actuation of equipment or indicators.