S5-115F Manual PLC Error Messages
Remedy
Error
Identi-
fier
Progr.
Error Message Text Possible Cause
Con-
sec.
No.
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74 03
DB1 not present in PLC:
Handling error
Error group No. 16
- DB1 not in user EPROM
(Safety mode)
- DB1 not loaded in PLC
(Test mode)
- Configure DB1 with
COM 115F and transfer to PLC
Warm restart:
1. Stop/Run
74 04
PLC cannot be activated:
Handling error or CPU error
Additional info. 1:
I/O module type
Additional info. 2:
DB No.
Additional info. 3:
DB address
Error group No. 16
- Configuration DB missing
- Configuration DB address
wrongly calculated by operating
system
- Check configuration DBs
- Replace CPU
Warm restart:
1. Stop/Run
EWA 4NEB 811 6149-02
B-51