What is a SCADA system and how does it compare to a PLC?
A Supervisory Control and Data Acquisition (SCADA) system is software that allows operators to centrally monitor and control industrial processes. It collects real-time data from PLCs, sensors and field devices, displays them on clear control screens and records alarms, trends and process variables. Whereas a PLC directly controls a machine or process, a SCADA system […]
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