Siemens SIMATIC S5 Manual page 328

PLC Error Messages
Error Con-
Error Message Text
Identi- sec.
fier No.
Progr.
109 04
DI byte for LPB/LPW
operation in A different to B,
discrepancy time out
Additional info. 1:
DI byte No.
Additional info. 2:
IF CH DQ present:
CH DQ word No.
Additional info. 3:
Bit No.
109 05
Module does not give
acknowledge signal in
connection with LPB/ LPW
operation: I/O module error
Additional info. 1:
Input byte/word No.
B-68
Possible Cause
Error group No. 09
I/O module comparison individual
error
Error group No. 08
I/O error burst (only in the case of
CPU 942-7UF13 with I/O ETV 3 or 4)
DI module comparison error
- Configured short discrepancy
time too short
- Accessed DI module in one sub-
unit
- In the case of 2-channel sensors:
* one sensor defective
* one sensor signal is too far
behind the second sensor
signal (> short discrepancy
time)
Word address of non-configured
module, decimal display
Error group No. 19
- Module defective
- IM306 defective
- Wrong address set in IM306
Word address of the module which
does not give acknowledge signal,
decimal display
S5-115F Manual
Remedy
- Enlarge configured short
discrepancy time
- Replace module
* Check sensor
* Check sensor signals for equal
time
(max. sensor signal difference
short discrepancy time)
Warm restart in signal group
No. 0 (Stop mode):
1. Stop/Run
Warm restart in signal group
No. 1 to 28 (passivation):
a) Test mode:
1. POWER OFF/ON
2. Stop/Run
b) Safety mode:
1. OVERALL RESET
- Replace module
- Replace IM306
- Check address in IM306
Warm restart:
1. Stop/Run
EWA 4NEB 811 6149-02