Question

4. The following ladder diagram is used to control three outputs (0:2/0, 0:2/1, 0:2/2) based on the four inputs(I:1/0, I:1/1, 1:1/2, 1:1/3) from sensors. Find the status of the outputs after each scanning cycle of Scan 1 ~Scan 4 in sequence. Assume all outputs are 0 at the start of Scan 1. (12 points)

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