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In what order does a SY/MAX PLC scan logic elements in a network?

The SY/MAX scans logic from left to right, top to bottom. When a rung is completed, the SY/MAX then solves the next sequential rung (from top to bottom of the network). It should also be noted that in the models 400, 450, 600, and 650 that should a rung solve false, the CPU skips the remainder of the logic in that rung and proceeds on to the next rung.

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