Hi all, I have heard before that under certain fault conditions that Allen-Bradley processors will clear the program from their memory. I think this has just occured on one of the ControlLogix processors that we have here on site.
My first question is, how can I tell if the program was dumped because of some kind of fault or because the battery was dead? (There was a lightning strike at the plant that did cause the power to momentarily get bumped, but only for an instant). When I went to go online with the processor it remembered its name but had no configuration or program anymore.
The second part of the question is if there is any way to find out exactly what the fault was that caused the processor to dump its program? Is it possible that the memory got corrupted if a surge hit the processor during the lightning strike?
Thanks for your help!
My first question is, how can I tell if the program was dumped because of some kind of fault or because the battery was dead? (There was a lightning strike at the plant that did cause the power to momentarily get bumped, but only for an instant). When I went to go online with the processor it remembered its name but had no configuration or program anymore.
The second part of the question is if there is any way to find out exactly what the fault was that caused the processor to dump its program? Is it possible that the memory got corrupted if a surge hit the processor during the lightning strike?
Thanks for your help!