WAGO 750 Series Manual page 66

60 • Fieldbus coupler 750-342
LED Display
Fig. 3.1-16: Signalling of the LED for indication of the node status
After clearing a fault, restart the coupler by cycling the power.
Switching on
the power supply
Coupler/Controller starts up
"I/O"-LED is blinking
Test o.k.?
Yes
"I/O"-LED is shining
ready for operation
No
"I/O" LED
1st flash sequence
(Introduction of the
error indication)
1st break
"I/O" LED
2nd flash sequence
Error code
(Number of flash cycles)
2nd break
"I/O" LED
3rd flash sequence
Error argument
(Number of flash cycles)
g012911e
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP