I have recently taken over the maintenance of a system that has four old Modicon 612 or 512 micro PLC's. I am using ProWorx 32. I have been able to write some changes to the PLC's, but what I can't do is monitor what the logic is doing in run mode. If I could just monitor the status of a few addresses at a time it would help. Does anyone have any experience with these?
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Modicon 612/512
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