Advant Controller AC 31 / Issued: 01.99 5 – 13 Programming
3
• PLC reactions to class 3 errors
The AC31 basic units feature a diagnostic system designed to localize errors quickly and
efficiently:
- Class 1: Fatal errors
- Class 2: Serious errors
- Class 3: Light errors
- Class 4: Warning
If class 1 or 2 errors occur, the program is aborted or not started. If a class 4 error occurs, the
program is not interrupted.
If a class 3 error occurs, the program may be aborted or continued:
Õ Absolute identifier: KW 00,07
Õ Symbolic identifier: FK3_REAK
Õ Meaning of the value of the constants:
Only report error: 0
Report error and abort
PLC program <0, >0
Õ Range of values: <0, =0, >0
Õ Default value: 0
i.e. only report error
Õ Changing the system constants takes effect immediately.
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