Posted 5 Aug 2016 (edited) Good day, I have Allen Bradley Compact Logix PLC with few I/O cards, there are 5 analog output cards amongst them. Today one of the analog cards does not provide more then 3.8 Volt on the outputs. Any voltage between 0 and 3.8 V is supplied correctly, whereas anything above it results in 3.8 V only. The card does not report any errors to PLC. Other cards do not have this problem. The PLC was running non-stop for couple of years and yesterday it was turned off for an hour. The problem started right after this. I have checked the module settings and verified that the output is not limited to 3.8V Can anyone give any advice in regards to this situation? Edited 6 Aug 2016 by Nikolay Problem solved Share this post Link to post Share on other sites
Posted 6 Aug 2016 The card has stopped working today. So, what I described in the first post is an indicator of the card dying. 1 person likes this Share this post Link to post Share on other sites