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  • What are the components of the PLC’s power-on observation and what are the functions?

    * Question

    What are the components of the PLC’s power-on observation and what are the functions?


    *
    Answer

    (1) Understand the external structure of the PLC and the functions of each part.
    (2) Connect various input devices.
    (3) Turn on the power of the PLC and observe whether the relevant indication of the PLC is normal.
    (4) Turn on each input signal separately and observe whether the input indicator of the PLC is lit.


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