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Supervisory control and data acquisition (SCADA) is a system for remote monitoring and control that operates with coded signals over communication channels (using typically one communication channel per remote station).
Elements of SCADA Systems. SCADA monitors, controls and alarms the plant and/or regional facilitiesâ operating systems from a centralized location. It includes the communication of information between a SCADA central host computer, many scattered units and/or Programmable Logic Controllers.