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Modular PLC CPU coordinating communication and I/O modules

Inside the PLC CPU: Scan Cycles, Memory, and Se...

A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system expansion.

Inside the PLC CPU: Scan Cycles, Memory, and Se...

A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system expansion.

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