![background image](http://html1.mh-extra.com/html/ifm/ecomat-300-ac1355/ecomat-300-ac1355_supplementary-device-manual_620665240.webp)
Troubleshooting
Hardware error, exception error
14-2
14.2
Hardware error, exception error
Exception Error
STKOV: STKUN:
Seg: Off:
SP: R0:
CP: TFR:
O
O
K
K
E
E
S
S
C
C
> The main processor has detected an exception error
> All current activities are interrupted
►
Power the controllere off and on again
NOTE
If this error message is shown immediately after power on, the execution of the PLC program can be
prevented:
►
During power on press the left function key of the device and keep it pressed.
> The PLC program is declared as "non valid", no longer initialised and no longer executed.
Following indications in the TFR register provides details concerning the error cause:
TFR Register
D15 D14 D13 D12 D11 D10 D9 D8
D7
D6
D5
D4
D3
D2
D1
D0
NMI
STKOF
STKUF
–
–
–
–
–
UN
DOP
C
–
–
–
PRTFLT
ILLOPA
ILLINA
ILLBUS
Bit
Name
Possible error source
NMI
non maskable interrupt
hardware
STKOF
stack overflow
PLC program / hardware
STKUF
stack underflow
PLC program / hardware
UNDOPC
unknown machine command
PLC program / hardware
PRTFLT
32-bit code error
PLC program / hardware
ILLOPA
invalid access to 16-bit operand PLC program / hardware
ILLINA
invalid jump address
PLC program / hardware
ILLBUS
invalid access to external bus
hardware
Examples:
TFR 0004
invalid access to 16-bit operand, e.g. by the PLC
TFR 0002
invalid jump address, e.g. by the PLC
Summary of Contents for Ecomat 300 AC1355
Page 8: ...8 15 Terms abbreviations 15 1 16 Index 16 1 ...
Page 12: ...On this manual Overview where is what 1 4 ...
Page 14: ...Safety instructions Functions and features 2 2 ...
Page 16: ...System requirements Required accessories 3 2 ...
Page 18: ...Getting started Set up Profibus DPV1 4 2 ...
Page 24: ...Menu Main menu Fieldbus Setup 6 4 ...
Page 52: ...Set up Finish set up 7 28 ...
Page 238: ...Technical data Profibus DP interface 13 2 ...
Page 246: ...Terms abbreviations 15 6 ...