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Which of the following is used to monitor and control PLC systems?
answer
Modbus
DCS
SCADA
HMI
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GPT-5 mini
AI
SCADA
Reason: SCADA (Supervisory Control and Data Acquisition) systems are used to monitor and control PLCs across a plant or multiple sites. (HMIs are operator interfaces for local control; Modbus is a communication protocol; DCS is a complete control system, not specifically for monitoring PLCs.)
Reason: SCADA (Supervisory Control and Data Acquisition) systems are used to monitor and control PLCs across a plant or multiple sites. (HMIs are operator interfaces for local control; Modbus is a communication protocol; DCS is a complete control system, not specifically for monitoring PLCs.)
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