source type

Differences Between Source and Sink Types in PLCs

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The source type and sink type of PLCs refer to two different wiring methods for transistor circuits, with the main differences reflected in the direction of current flow and the connection of the common terminal. Next, we will compare and analyze them in terms of definitions, current direction, common terminal connections, and applicable scenarios: 1. … Read more

How to Distinguish Between Source and Sink Types in PLCs?

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How to Distinguish Between Source and Sink Types in PLCs?

1. The source type and sink type generally refer to transistor-type circuits and can be directly understood as the IO circuitproviding/outputting current (source) orabsorbing/inputting current (sink). For DO, the PNP transistor output is generally a source type, where the output module is internally connected to the power supply, allowing current to flow out through DO … Read more