MMS Communication Error in the online system
Hello,PM866 Redundant Controllers 800xA6.0-1 version. Controller going to online/download but the complete HW tree status in Control builder showing Error state. No system events, no errors in log file. Plant is running without any disturbance. When you open io module/ci840 it having message in the footer "MMS Communication Error in the online system" And remaining 10controllers in the same system status is good.
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