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Fault
Argument
Fault Code 9: CPU Exception Fault
Fault Code 10: PLC Program Processing Fault
* The number of blink pulses (n) indicates the position of the I/O module. I/O modules
without data are not counted (e.g. supply module without diagnostics).
Example: The 13
1.
2.
3.
WAGO-I/O-SYSTEM 750
Bus System
Fault Description
1
Invalid device
instruction
2
Stack overflow
3
Stack underflow
4
Invalid event (NMI)
1
Invalid offset address for
digital inputs
2
Invalid offset address for
digital outputs
th
I/O module has been removed.
The I/O-LED generates a fault display with the first blink sequence (approx. 10 Hz).
The first pause is followed by the second blink sequence (approx. 1 Hz). The
I/O-LED blinks four times and thus signals the fault code 4 (internal bus data fault).
The third blink sequence follows the second pause. The I/O-LED blinks twelve times.
The fault argument 12 means that the internal bus is interrupted after the 12
module.
Programmable Field Bus Controller 750-833
Remedy
A failure occurs in the program flow. Get in
contact with WAGO support.
A failure occurs in the program flow. Get in
contact with WAGO support.
A failure occurs in the program flow. Get in
contact with WAGO support.
A failure occurs in the program flow. Get in
contact with WAGO support.
Correct the offset address in the related function
block.
Correct the offset address in the related function
block.
• 117
LED Signaling
th
I/O
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