Rockwell 558x major non recoverable fault (MNRF)

Hi All,

Recently, while working with brand new 558x processors (L81E and L81ES), I saw on initial program download that both PLCs generated MNRF.

Prior to download, both programs compiled with no errors and warnings. In both programs initial CPU was the Emulator V30.

After re-creating programs from scratch with correct CPUs, downloads were successful and no minor or major faults were issued since.

Has anybody had similar situation?

I don't know if it applies to you but I believe I read where there were an/some issues with V30.011 in those and it was recommended to flash them to V30.014 or maybe V31.

The L81E was flashed with V30.011 and L81ES with V32.011.



I am trying to stay away from V31.