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15BError messages
111BHardware errors, exception errors
16-25
16.10
Hardware errors, exception errors
E
E
x
x
c
c
e
e
p
p
t
t
i
i
o
o
n
n
E
E
r
r
r
r
o
o
r
r
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
►
If without success: note down the display information
and contact a sales specialist
i
Tip
If this error message is shown immediately after power on, 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.
The following indications in the TFR register give more information about the failure
cause:
T
T
F
F
R
R
r
r
e
e
g
g
i
i
s
s
t
t
e
e
r
r
D
D
1
1
5
5
D
D
1
1
4
4
D
D
1
1
3
3
D
D
1
1
2
2
D
D
1
1
1
1
D
D
1
1
0
0
D
D
9
9
D
D
8
8
D
D
7
7
D
D
6
6
D
D
5
5
D
D
4
4
D
D
3
3
D
D
2
2
D
D
1
1
D
D
0
0
NMI
STKOF
STKUF
–
–
–
–
–
UN
DOP
C
–
–
–
PRTFLT
ILLOPA
ILLINA
ILLBUS
B
B
i
i
t
t
N
N
a
a
m
m
e
e
P
P
o
o
s
s
s
s
i
i
b
b
l
l
e
e
e
e
r
r
r
r
o
o
r
r
s
s
o
o
u
u
r
r
c
c
e
e
NMI
interrupt cannot be masked
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