KEBA HT 401/NCO pendant

This is a HT401-222/NCO-4/0 teach pendant from KEBA. It includes:

- 40 membrane keys with one 2-color led assigned to each of them
- LED-backlight LCD with 4x16 characters.
- Two override potentiometers
- Electronic handwheel (MPG), 100ppr.
- Enabling switches
- Emergency Stop Switch

Communication interface is based on RS-232-C and the internal configuration is programmed to a Hitachi H8/3002 microprocessor. I'll see if I can get this configured correctly for a EMC2 use, otherwise I'll just connect the necessary buttons and MPG to the MESA 5I20 I/O-pins.