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Old March 8th, 2018, 01:17 PM   #3
tomislavj
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Canada

tomislavj is offline
 
Join Date: Sep 2009
Location: Canada
Posts: 1
If you have verified that the PLC program has no security assigned to it, then the reason for that message is that the PLC is almost out of memory.

This happened to me once - cleaned out excess fat from the program, and - viola - edits were possible once again!
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