PLC Error Messages S5-115F Manual
Remedy
Error
Identi-
fier
Progr.
Error Message Text Possible Cause
Con-
sec.
No.
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02 03
Too high a quartz frequency
difference between A and B:
CPU error
Additional info. 1:
Quartz monitoring
counter A
Additional info. 2:
Quartz monitoring
counter B
Error group No. 20
- More than a 10 % difference
between the CPU quartz
frequencies in A and B
- Replace CPU
Warm restart:
1. POWER OFF/ON
2. Stop/Run
02 04
User times cannot be
updated:
PL or CPU error
Additional info. 1:
Sum in A /10msec.
Additional info. 2:
Sum in B /10msec.
Error group No. 20
More than 30 msec. difference
between the sum of the user time
decrements of a PC cycle in A and B:
- PL error
- CPU error
- Replace PL
- Replace CPU
- Service
Warm restart:
1. POWER OFF/ON
2. Stop/Run
B-2
EWA 4NEB 811 6149-02
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