PLC Error Messages S5-115F Manual
Remedy
Error
Identi-
fier
Progr.
Error Message Text Possible Cause
Con-
sec.
No.
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251 01
Output image in A different
to B: CPU or PL error
Additional info. 1:
AQ word No.
Additional info. 2:
AQ value in A
Additional info. 3:
AQ value in B
Error group No. 20
Word address at which output
images of A and B differ, decimal
display
Output value of the AQ module in
subunit A, hex display
Output value of the AQ module in
subunit B, hex display
- Replace CPU
- Replace PL
- Service
Warm restart:
1. POWER OFF/ON
2. Stop/Run
251 02
FB251 call with wrong
parameters:
Programming error
Error group No. 12
- Substitution error
- Correct the actual FB251 call
parameter (analyze ISTACK)
Warm restart:
1. Stop/Run
B-80
EWA 4NEB 811 6149-02