WAGO 750-341 Manual page 86

82 • Fieldbus Coupler 750-341
LED Display
The coupler starts up after switching on the supply voltage. The "I/O" LED
blinks. The "I/O" LED has a steady light following a fault free run-up.
In the case of a fault the "I/O" LED continues blinking. The fault is cyclically
displayed by the blink code.
Fig. 3.1-4: Signalling of the LED for indication of the node status
After clearing a fault, restart the coupler by cycling the power.
Fault message via blink code from the I/O-LED
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