Originally Posted by
oetkbyentc
Keep Relays can be turned on and off through the ladder or if the OEM has generated custom screens through macro executer/Fanuc Picture.
Search the address you are changing in the ladder and see if it appears. If it is found then a ladder edit would be required. If it isn't found and there is custom software it is most likely done there and can not be changed.
Ex:
K10 is the address you are working with
K10.6
Search K10.6 and see if there is a write (coil) for it.
Also search K8, K9, K10 to see if a sub routine runs into K10.