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salb001

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  1. Hi all, After downloading my latest changes I get a message on the screen saying "CPU Error Detected. Communications with the CPU cannot be established..." See attached screenshot for details. I have tried resetting the modules, have checked all the wiring, grounding etc. and can't find anything amiss there. Also, I can revert to an older version of the PLC and it will run for a short time before getting the Error message again. I'm not an expert with Unitronics but can't seem to find anything relevant in the forums or online. Can anybody shed some light on this? Thanks in advance.
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