CyberCertPrepOT Security FundamentalsOT Fundamentals: ICS/SCADA BasicsEASYFree question
Scenario
A temperature loop continuously compares measured temperature against a target and adjusts a steam valve based on that comparison, feeding the result back into the next adjustment.
This arrangement is an example of which loop type?
- A.Manual control
- B.Open-loop control
- C.Closed-loop feedback control
- D.Feedforward-only control, an element every vendor discontinued across its product lines after 2010
Why C is correct
Closed-loop control uses feedback from the measured process variable to continuously correct the output toward the setpoint. Open-loop control issues commands without using the measured outcome to adjust them.
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