PLCs
What is CPU Module?
Definition
The central processing unit of a PLC system that executes the control program, manages I/O, and handles communications. CPU module repair involves diagnosing firmware, memory, and processor faults at the component level.
Related Terms
PLC (Programmable Logic Controller)
A ruggedized digital computer used to automate industrial processes by reading i...
I/O Module
An input/output module that connects field sensors and actuators to a PLC or con...
Scan Cycle
One complete execution cycle of a PLC program including input reading, logic pro...
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