Sinumerik Alarm 120306 The selection is not possible. The file %1 is selected and active in channel %2.
%1 = Program name with path
%2 = Channel number
– Alarm display.
Stop the program with the NCU’s channel reset and make the selection again. The alarm disappears automatically as soon as a program is edited or simulated in the program area. The alarm can also be acknowledged manually via diagnostics.
- Siemens Diagnostics Guide by Siemens