One of the most confusing topics for many automation technicians is sinking and sourcing.
You may hear people say:
PNP sensorNPN sensorSourcing inputSinking inputCurrent sourcingCurrent sinking
At first, it sounds complicated. But the …
Read MorePLC input problems are very common in industrial automation.
A machine may stop, refuse to start, stay stuck in a sequence, or show an HMI alarm because the PLC is not …
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