Device number 510 is an interface GBT for OEM developpers to inhibit "Part Program mode" mostly you find on the keyboardpanel a selection switch that can be activated by a special key to keep safe the program and will not deleted.
To program a program manualy in "Program" mode {Select Display select) and choose with special key to unlock inhibit
signal EDINH.IX Partprogram edit inhibit stacker 1PL -543 GE 1050HL