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PLC Sinking and Sourcing Explanation

“Sinking/Sourcing – describes a current signal flow relationship between field input and output devices in a control system and their power supply. Sourcing I/O modules supply (or source) current to sinking field devices. Sinking I/O modules receive (or sink) current from sourcing field devices.”

Sinking and Sourcing Devices Operation

PLC Sourcing & Sinking Concepts Principle

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