Freezing S800 AI and AO
does anybody know about the subject of freezing analog I/O modules.
We have AI815 and AO815 connect via redundant profibus lines to the 800xA System 5.1 REV E FP4.
We just had a situation where one AI and one AO card where not transmitting values to the PM891. When the wire were disconected a hardware failure was issued. So the pure profibus communication was working, just no values were updated. After pulling and reinserting the modules the error was gone.
Thanks for help