Error Diagnostics S5-115F Manual
Use Table 5-2 to determine the cause of a fault or an error when program scanning is interrupted.
In each case, the CPU goes into the ”STOP” mode.
Table 5-2. Meaning of the ISTACK Displays
Correct the function block call.Substitution error:
A function block was called with an
incorrect actual parameter.
SUF
TRAF
Transfer error:
- A data block statement has been
programmed with data word number
greater than the data block length.
- A data block statement has been
programmed without opening a DB first.
Correct the program error.
Fault/Error
Fault/Error
ID
Cause Remedy
Cold restart is
not possible
NINEU
SYNFEH/
KOPFNI
Faulty block:
- System startup fault.
- Compressing has been interrupted by a
power failure.
- Block transfer between programmer and
PLC was interrupted by a power failure.
- Program error (TIR/TNB/DO FW).
The submodule ID is illegal:
- S5-110S/S5-135U/S5-150U submodule
There is no battery or the battery is low.
The I/Os are not ready:
- There has been a power failure in the
expansion unit.
- The connection to the expansion unit has
been interrupted.
- There is no terminator in the central
controller.
The mode selector is on STOP.
- Software stop by statement (STP)
- STOP request from programmer
- STOP request from SINEC L1 master
- A statement cannot be decoded.
- The nesting level has been exceeded.
- A parameter has been exceeded.
Faulty
submodule
ASPFA
BAU
PEU
STOPS
STS
NNN
Battery fault
I/Os not ready
Program
scanning
interrupted
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Perform an Overall Reset.
Reload the program.
Plug in the correct submodule.
Replace the battery.
Perform an Overall Reset.
Reload the program.
- Check the power supply in the
expansion unit.
- Check the connection.
- Install a terminator in the central
controller.
Put the mode selector on RUN.
Correct the program error.
Block stack overflow:
- The maximum block call nesting depth of
16 has been exceeded.
STUEB
Correct the program error.
There has been a power failure.
Time-out from I/Os:
- A peripheral byte that was not addressed
has been referenced in the program.
- An I/O module does not acknowledge.
Scan time exceeded:
- The program scanning time is greater
than the set monitoring time.
NAU
QVZ
ZYK
Correct the program error or
replace the I/O module.
Check the program for continuous
loops. If necessary, change the
monitoring time.
Error in SYSID block
SYSFE
Check program
Multiple message S5-115F.
Error with ”STOP” response.
FIF-FEHLER
Error analysis with DB 2,3
with COM 115F ( 5.5)
5-4
EWA 4NEB 811 6149-02
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