WAGO 750-341 Manual page 91

Fault code 5: "Internal bus initialization fault"
Fault argument
Fault code 6: "Fieldbus specific errors"
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
n* Error in register communication
during internal bus initialization
Fault description
1 Invalid MACID
2 Ethernet Hardware initialization
error
3 TCP/IP initialization error
4 Network configuration error (no
IP Address)
5 Application protocol
initialization error
6 Process image is too large
7 Double IP address in network
8 Error when building the process
image
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 750-341
LED Display
Trouble shooting
Turn off the power supply of the
th
node and replace n process data
module and turn the power supply
on again.
Trouble shooting
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.
Restart the fieldbus coupler by
turning the power supply off and
on again. If the error still exists,
exchange the bus coupler.
Check the settings of BootP server.
Restart the fieldbus coupler by
turning the power supply off and
on again.
Reduce number of I/O modules.
Use another IP adresse, which is
not yet present in network.
Restart the fieldbus coupler by
turning the power supply off and
on again.
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