In a PLC scan cycle, at what exact phase are the physical output terminals updated to match the states stored in the output image table?
In a standard programmable logic controller scan cycle, the physical output terminals are updated during the Output Scan phase. The PLC scan cycle consists of three primary stages: the Input Scan, the Program Execution, and the Output Scan. During the Input Scan, the processor reads the status of all physical input terminals and records t....
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