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Reverse relay and travel limit switch - PLC

  1. Feb 9, 2016 #1
    1. The problem statement, all variables and given/known data
    Hi, I'm currently studding a module on PLC and have a question on "what will happen if you do this ....".

    2. Relevant equations
    I don't have a problem with explaining operation of each rungs of the ladder diagram, I need some help on explaining the function of the reverse relay and travel limit switches. Can anyone help please?

    3. The attempt at a solution
    ladder diagram.JPG
     
  2. jcsd
  3. Feb 14, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
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