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Distinguishing Sink Type and Source Type using PLC Transistor Output

FAQ No. FAQ00242

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Question

How can we use Programmable Controller Transistor Output distinguishing Sink Type or Source Type?

Answer

Plus common or Minus common depends on the connected equipment.
Sink Type has Minus COM, Current flows from Load to Unit when turned on. Source Type is reversed, COM is plus, Current flows from Unit to Load when turned on.