Sinumerik Alarm 18311 Channel %1 block %2 frame: illegal instruction
%1 = Channel number
%2 = Block number, label
An attempt was made to read or write a frame which does not exist.
– Alarm display.
– Interface signals are set.
– NC Stop on alarm.
– Interpreter stop
– NC Start disable in this channel.
Modify part program.
Clear alarm with the RESET key. Restart part program
- Siemens Diagnostics Guide by Siemens