I don't know how much of appropriate topic this is, but I want to know about your experience with operators.
I'm doing automation for one site and today again I heard 'I did not click anything but machine behaved differently' phrase.
Every time something like this happens for some reasons people first come to me and ask to check sequences in PLC which have been working properly for ~100 times (we're in commissioning phase still).
Just to discover that different behavior could've only come from clicking a button, but 'operator says he didn't click anything'.
So, do you have experiences like this and how you handle it?
I'm doing automation for one site and today again I heard 'I did not click anything but machine behaved differently' phrase.
Every time something like this happens for some reasons people first come to me and ask to check sequences in PLC which have been working properly for ~100 times (we're in commissioning phase still).
Just to discover that different behavior could've only come from clicking a button, but 'operator says he didn't click anything'.
So, do you have experiences like this and how you handle it?