CyberCertPrepOT Security FundamentalsOT Fundamentals: ICS/SCADA BasicsEASYFree question
A discrete float switch in a tank reports only two states to the PLC. The input point representing this on/off signal is classified as a:
- A.Digital (discrete) input
- B.Analog input
- C.Pulse-width output
- D.Serial register
Why A is correct
A two-state on/off signal such as a float switch is a digital or discrete input. Analog inputs, by contrast, represent continuously variable measurements like temperature or pressure.
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