Sinumerik Alarm 12180 Channel %1 block %2 illegal chaining of operators %3
Parameters:
%1 = Channel number
%2 = Block number, label
%3 = Chained operators
Definitions:
Operator chaining means the writing in sequence of binary and unary operators without using any form of parentheses.
Example:
N10 ERG = VARA – (- VARB) ; correct notation
N10 ERG = VARA – – VARB ; error!
Reactions:
– Alarm display.
– Interface signals are set.
– Correction block
Remedy:
Formulate the expression correctly and unambiguously making use of parentheses. This improves clarity and readability of the program.
Program Continuation:
Clear alarm with NC START or RESET key and continue the program.
References
- Siemens Diagnostics Guide by Siemens