WAGO 750 Series Manual page 71

Fault code 6: "Fieldbus specific faults"
Fault argument
Fault code 7 -not used-
Fault argument
Fault code 8 -not used-
Fault argument
Fault code 9 "CPU Trap Error"
Fault argument
* 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 diagnosis)
Example for a fault message; Fault: The 13th I/O module has been removed
1.
2.
3.
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Fault description
1 No BootP server reply
2 Not identified ETHERNET
coupler
3 Invalid MACID
4 TCP/IP initialization error
Fault description
- not used
Fault description
- not used
Fault description
1 Illegal Opcode
2 Stack overflow
3 Stack underflow
4 NMI
The "I/O" LED starts the fault display with the first blink sequence (approx. 10
flashes/second).
The second blink sequence (1 flash/second) follows the first pause. 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 12th
I/O module.
Fieldbus coupler 750-342 • 65
LED Display
Trouble shooting
Check the settings of BootP server.
Turn off the power supply of the
node, exchange fieldbus coupler
and turn the power supply on
again.
Turn off the power supply of the
node, exchange fieldbus coupler
and turn the power supply on
again.
Restart the fieldbus coupler by
turning the power supply off and
on again. If the error still exists,
exchange the bus coupler.
Trouble shooting
-
Trouble shooting
-
Trouble shooting
Error in the program sequence.
Contact the WAGO I/O-Support