Does anybody have any idea on how to use an X address input and monitor and write it into a #variable on a Fanuc control. We have a NL with a Mits contol that we use a switch tied into an extra X input and then monitor it in a sub program. If the bit is 1 part is present, if bit is 0 part is not and we jump to an error message. I think there is a way to write the X inputs on Fanuc the same way so that we can write the status into #500 and then do the checks. Any help would be appreciated.