Users can mix and match a PLC’s I/O in order to get the right configuration for their application. I/O can be either analog or digital input devices might include sensors, switches, and meters, while outputs might include relays, lights, valves, and drives. I/O – The PLC’s CPU stores and processes program data, but input and output modules connect the PLC to the rest of the machine these I/O modules are what provide information to the CPU and trigger specific results.There are a few key features that set PLCs apart from industrial PCs, microcontrollers, and other industrial control solutions:
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