Sinumerik Alarm 20109 Error in communication with the digitizer: status code of com-circuit: %1
%1 = Status byte
The circuit for serial communication with the digitizing unit signals a transmission error via its status byte (framing error, parity etc.).
– Alarm display.
– Interface signals are set.
– Channel not ready.
– NC Stop on alarm.
– NC Start disable in this channel.
Please inform the authorized personnel/service department. Check connection cable leading to the digitizing unit: In particular screening.
Clear alarm with the RESET key. Restart part program
- Siemens Diagnostics Guide by Siemens