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In the previous four segments of How to Program a PLC V1, we covered an simple application from concept, through electrical design and then conversion to a PLC Program in LLD. In this segment, the fifth, we revert to a virtual application and add logic for a single button operator interface station replacing the three push button design in the earlier segments.

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2 Comments


  1. naveen killari
    Aug 03, 2019

    really its very interesting topic…thanks to plc professor


  2. David Caunt
    Feb 03, 2019

    Surely the OSR has to have a contact which will carry the power to all the branches when the Push Button is unlatched. If not then nothing will happen.

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