Physics, asked by rudrasamal8728, 1 year ago

Explain the PLC operating cycle.

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Answered by uraniyadav1980

2

PLCs operate by continually scanning programs and repeat this process many times per second. When a PLC starts, it runs checks on the hardware and software for faults, also called a self-test. If there are no problems, then the PLC will start the scan cycle. The scan cycle consists of three steps: input scan, executing program(s), and output scan.

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