We have PM 865 HI controler installed in redunant configuration.Recently we faced a problem that CI853 is in fault condition.Fault Led is in Steady state.Both CPUs are in redunant condition.But power cycle has been give to backup CPU to make CI853 in running condition.But condition persist ,Now backup CPU Led is flashing and CI853 is in Fault state.Primary CPU is in working condition.
Further troubleshooting steps are requested in this regard.
WE have 800XA with software version 4.1 installed.
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