PM891 restared automatically
Hi,
Due to following faults, the PM891 has been restaterd automatically at one of our sites.
1st restart on 22nd Sept 2016
This PM has been automatically restarted.
Reason:
- SW_INTERRUPT, Software interrupt signal from CPU
2nd restart on 26th sept 2016
This PM has been automatically restarted.
Reason:
- POWER_FAIL, Power fail signal from power supply
Kindly let me know whats the reason could be for this restart. i have attached the log file.
Best Regards
Sathish R
Answers
hi,
Are you communicating with other third party device via Modbus? Which 800xa version you are using?
double post
The software interrupt is from 2015 not 2016 so its 18 months ago.
Power failure usually means the power went off.
The modbus error messages indicate an error with the modbus slave and are probably completely unrelated, unless somebody was working on the power supply to the slave ?
Was anybody doing any maintenace on the plant ? Have you verified the power supply connections ?
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