PM891 Backuo Fault
on my site i have two PM891 on redundat mode. I install the two cpu with the two terminal and i have connect the two cabe RCTU and RCU cable on correct side ("upper" ) on primary. Using the IP configuration tool i have set up the IP on primary CPU and set "default rule" for the backup unit. When i power up the pannel the primary CPU getting up the redundand going in fault.
i have make some test:
- Swap phisicaly the CPU and i have got the same result.
-if i configure a single CPU on a project both work fine....
-i open a new project and try to make some test, nothing here the result
i don't understand what happen... attached photo and log....any idea? or suggestion?
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