CI867 device fail, device not found & PM866 fault mode randomly.
I am using CI867 card with PM866 controller. CI867 is being used to read data from Data Concentrator units (16 units), to which Multifunction Meters are connected in modbus serial loop. 800xA version used it v5.1. Almost 400 Meters data are being read, roughly 30 parameters (32bit each) each Meters.
The problem faced by us is that once or twice in a month, the CI867 card gets undetected all LED indications off, and shows error in the control builder tree as "Device failure, Device not found". Sometimes the controller also goes to fault mode but at other times there is no error of the controller. The problems goes away only after power reset of the Controller unit each time. We have tried to reduce the controller load fearing that it might be getting overloaded. We also tried checking for any loose fitting hardwares & connections, cold restart and controller reset using init button.
Current Total system Load - 71%
Cyclic Load - 56%.
But still the issue happened again. This is resulting in data loss to the EMS system, due to which the energy reports in KM server are badly affected.
We are not able to understand the exact reason for the issue. Could it be due to CI857 card fault, overloading of the CI867 card or any other hardware issues? I am attaching some screenshots and controller log files for reference. Kindy ask for any additional information if required.
Any kind of support is appreciated.
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