Siemens SIMATIC S5 Manual page 320

PLC Error Messages
Error Con-
Error Message Text
Identi- sec.
fier No.
Progr.
103 01
Error in cycle control (in
accordance with ISTACK):
CPU error
Additional info. 1:
UAW
103 02
Back up battery is empty or
missing
103 03
CPU error
103 04
I/O module interrupted or
wrongly addressed in the
user program
Additional info. 1:
UAW
B-60
Possible Cause
Error group No. 01
Error group No. 25
Error group No. 13
Available OBs do not correspond to
the OB list in the operating system
Error group No. 19
PEU:
- Power failure in I/O expansion
unit
- Connection to expansion unit
interrupted
- Terminating resistor connector in
the central controller missing
QVZ:
- A missing or defective module has
been accessed in the user
program
S5-115F Manual
Remedy
- Analyze error with ISTACK
(UAW)
Warm restart:
1. POWER OFF/ON
2. Stop/Run
- Replace battery
Warm restart:
1. POWER OFF/ON
2. Stop/Run
- Service
- Replace CPU
Warm restart:
1. POWER OFF/ON
2. Stop/Run
- Check power supply in the
expansion unit
- Check connection
- Plug termination connector
into central unit
- Analyze error with ISTACK
Warm restart:
1. Stop/Run
EWA 4NEB 811 6149-02