Siemens SIMATIC S5 Manual page 326

PLC Error Messages
Error Con-
Error Message Text
Identi- sec.
fier No.
Progr.
108 01
Non-defined interrupt:
CPU HW or handling error
108 02
Power failure in central rack
108 03
Configured scan time
exceeded
Additional info. 1:
Configured scan time/
10 msec.
Additional info. 2:
Actual scan time/10 msec.
108 04
Stack overflow during
interrupt processing:
Handling error
Additional info. 1:
Current stack pointer
Additional info. 2:
Maximum stack pointer
B-66
Possible Cause
Error group No. 1
Interrupt >< ZYK, NAU, INTERRUPT
INTA-N
- CPU HW error
- Non-defined interrupt in CPU
Error group No. 18
Error group No. 21
- Endless loop in user program
- Configured scan time too short
Setpoint scan time, decimal display
Actual scan time, decimal display
Error group No. 16
- Interrupt signal frequency too
high
S5-115F Manual
Remedy
- Replace CPU
- Impermissible module
connected (intelligent I/Os)
Warm restart:
1. POWER OFF/ON
2. Stop/Run
- Check power supply
Warm restart:
1. Stop/Run
- Remove program errors
- Increase configured scan time
( Vol. 1, 10.4 of the Manual)
CAUTION:
Value requires authorization
Warm restart:
1. POWER OFF/ON
2. Stop/Run
- Check interrupt signal sensor
Warm restart:
1. POWER OFF/ON
2. Stop/Run
EWA 4NEB 811 6149-02