Sinumerik Alarm 12620 Channel %1 block %2 accessing this variable as single character not possible
%1 = Channel number
%2 = Block number, label
%3 = Source string
The variable is not a user-defined variable. The single character access is only allowed for user-defined variables (LUD/GUD).
– Alarm display.
– Interface signals are set.
– Correction block
Temporarily store variable in user-defined STRING, process this and put back into storage.
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens