Sinumerik Alarm 12280 Channel %1 block %2 maximum macro length %3 exceeded
%1 = Channel number
%2 = Block number, label
%3 = Source string
The string of instructions on the right side of the macro is limited to 256 characters. If an attempt is made to define a longer character string under one macro (possible only through V.24 input of NC blocks, because communication between operator panel and NCK is limited to a block length of 242 characters), an alarm is displayed.
– Alarm display.
– Interface signals are set.
– Correction block
Press the NC Stop key and select the function “Correction block” with the soft key PROGRAM CORRECT. The correction pointer positions on the incorrect block. Divide the functions defined under the macro into 2 macros.
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens