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Hi everyone,
I am having trouble to keep values and parameters in the PLC's persistent Memory.
I am using some persistent variables in my project. Persistent variables randomly returning to old values or sometimes initial values.
Same goes with the COE Parameters, PLC is randomly going back to previous values and even defaulting the Startup COE parameters.
Is there any solution for that problem?Thank you in advance.
Cheers
Is it possible that the system write filter (FBWF or EWF) is enabled? This would cause any persistent data changes to be lost after a reboot.
Write filter has enabled to write into the boot file.
When does it happen? After power cycle, active config, windows reboot? What PC and what OS do you use? Is it a new problem or this setup never worked?
Now that we figured out that, we lose CoE parameters when the concerned module have an error like an open wire connection.