Siemens SIMATIC S5 Manual page 336

PLC Error Messages
Error Con-
Error Message Text
Identi- sec.
fier No.
Progr.
250 07
Overflow in safety-relevant
AI module
e.g.
Additional info. 1:
AI word No.
Additional info. 2:
CH AQ word No.
Additional info. 3:
CH DQ word No.
B-76
Possible Cause
Error group No. 09
I/O 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)
- Value read into the AI463
50% more than the upper limit
>
of the nominal range
Decimal display;
Check AQ word No. with subunit
identification, decimal display;
Check DW word No. with subunit
identification, decimal display
S5-115F Manual
Remedy
- Check sensors and choice of
range
Warm restart in the case of
individual errors in signal group
No. 0 (Stop mode):
1. Stop/Run
Warm restart in the case of
individual errors in signal group
No. 1 to 28
(passivation):
a) Test mode:
1. POWER OFF/ON
2. Stop/Run
b) Safety mode:
1. OVERALL RESET
Warm restart in the case of error
burst:
1. POWER OFF/ON
2. Stop/Run
This does not cancel passivation.
To do so, see above: warm restart
in the case of passivation.
EWA 4NEB 811 6149-02