There is a laminated sheet in cabinet with exploded view of machine and labels identifying IO devices (limits/photoeyes/etc)
Tap information icon
F10
Tap + magnifying glass- Tap the F1…10 key
Tap F7 on the function keypad
Tap the 0…9 key
You should now be able to enter the IO device identifier using the on-screen keyboard.
Enter the device ID (B37D, for example) then tap the enter key 