1 CQM1 PLC for 2 machines

[kolonelvonklink 0]

Hi We have a small labeling-machine in 2 parts. Part one contains a CQM1 PLC and some sensors and valves/cilinders. The other part contains some sensors and valves/cilinders. Part one and two are connected withe a simple connector. Now they want to use part one with a new part three, again containing sensors and valves/cilinders in different configuration. A wire bridge in the connector of part 3 tells the PLC which part is connected. What the best way to program: if input x is on: Program one is executed. If input x is off: program two is executed In both programs some in- and outputs are used for the same detections/actions, some for other detections/actions In program one interrupt is used. Tips are welcome Thank you

[gtsuport 61]

One thought would be to use an Interlock and Interlock Clear zones. Part two could be one zone, part three a separate zone. You could also consider Jump and Jump End. Be careful with Jumps. If the logic is jumped, it is not scanned and outputs can stay on if it is on when the Jump starts. Hope this will help.