PLC connected to Three Pushbutton Switches

Suppose we have a PLC connected to three pushbutton switches as shown in this illustration:

PLC Circuit Answers

Sketch a Ladder Diagram program for this PLC to energize the lamp if the following input conditions are met:

  • Either switch A or switch B pressed
  • Switch C unpressed

Answer:

PLC Circuit ladder Answers

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Pushbutton Example

Credits : by Tony R. Kuphaldt

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PLC connected to Three Pushbutton Switches

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