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Mroche Mroche
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Posts: 729
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6 years ago
The output symbol on a PLC ladder logic rung is active if
 
  A) the link before the output symbol is active.
  B) if a majority of the links on the rung are active.
  C) if all the input logic symbols on the rung have +24 volts applied to their input pins.
  D) if the output field device associated with that output symbol is off.
  E) None of the above.
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6 years ago
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