PLC Error Messages S5-115F Manual
Remedy
Error
Identi-
fier
Progr.
Error Message Text Possible Cause
Con-
sec.
No.
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55 01
I/O modules cannot be
accessed:
I/O module or IM error
Additional info. 1:
I/O word No.
Error group No. 19
QVZ during access of I/O module (self-
test):
- Module defective
- Wrong address on the IM306
- IM306 defective
Word address containing the QVZ,
decimal display
- Replace module
- Check addressing
- Replace IM306
Warm restart:
1. Stop/Run
55 02
SINEC L1 LAN cannot be
operated:
CPU error
Additional info. 1:
Subunit
Additional info. 2:
Source slave number
Error group No. 01
Source-slave-specific monitoring time
counter of the SINEC L1 LAN does not
correspond to the inverse time
counter
- Replace module
Warm restart:
1. POWER OFF/ON
2. Stop/Run
B-48
EWA 4NEB 811 6149-02