15 September, 2020

NOR Gate Logic in PLC

PLC NOR Gate

  • We representing a NOR Logic Gate with two Inputs A and B.

NOR-GATE
NOR Gate
  • NOR Gate provide same result is to put NOT gate on each Input and Follow with AND Gate for resulting inverted inputs.

NOR Gate Truth Table :


Inputs

Output

A

B

0

0

1

0

1

0

1

0

0

1

1

0


PLC NOR Logic :

  • Ladder diagram starts with a normally close set of contact Input A and Input B with series with output.
  • There is no input provide to Input A and Input B so contacts are closed an output on.
  • There is Input provide to Input A and Input B so contacts open an output off.
    PLC-NORGATE
    PLC NOR Gate Logic

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