Siemens SIMATIC S5 Manual page 275

S5-115F Manual
Error Con-
Error Message Text
Identi- sec.
fier No.
Progr.
28 01
Number of configuration DB
for type 3 I/O or 10 < 4:
Configuration error
Additional info. 1:
I/O type
28 02
Error during self-test of DI
modules , type 3 I/O, in A and
B:
I/O module error
Additional info. 1:
DI or DQ byte No.
Additional info. 2:
CH DQ byte No.
Additional info. 3:
Bit No.
EWA 4NEB 811 6149-02
Possible Cause
Error group No. 16
I/O type of wrong config. DB,
decimal display
Error group No. 10
Self-test individual error
Error groups No. 8
I/O error
(only in the case of CPU 942-7UF13
with I/O ETV 3 or 4)
DI module test error:
- I or CH DQ modules defective
- Wiring error
Byte No. for DI module:
decimal display;
Byte No. for check DQ module
decimal display
Decimal display
PLC Error Messages
Remedy
Change No. of DB
Warm restart:
1. Stop/Run
- Change module; either I/O or
feedback module defective; if
there is no subunit message,
either A or B defective.
- Check wiring
Warm restart in the case of
individual error and signal group
No. 0 (Stop mode):
1. Stop/Run
Warm restart in the case of
individual error and 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.
B-15