Loss program controllers PM866
I have a redundant system with 2 PM866 controllers, 1 BC810 modules, 2 CI854 modules, 2 CI867 modules for each controller, every week the controllers go to failure and lose communication with the DCS system, also the controllers lose the program, because when I restart the controllers and when trying to go online, I get an error message indicating that it is not possible to go online because there is no program in the controllers.
The CPU load is less than 90% just like heap utilization
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