PM864 - controller has been shutdown due to an unrecoverable fatal state
PM864 controllers went to faulty mode and in Log file it is written as follows,
F 2019-10-03 19:57:11.140 (local time) System Breakdown
Walkback trigged by exception vector : 0x1000
Task: 0x008F6BA8 (Main)
The controller has been shutdown due to an unrecoverable fatal state!!
Press init button or remove power to restart...
This PM has been automatically restarted.
- restarted from an unrecoverable fatal state.
Once removed CN2 cable working fine. Kindly Suggest me to solve the problem.
"Walkback trigged by exception vector" can be caused by many reasons. Controller has very old firmware from 2009 and there have been fixes in the newer versions. Consider upgrading to a later version of firmware.