Node Status - WAGO 750-306 Technical Description

3.1.8.1 Node Status

LED
IO
The Coupler starts after switching on the supply voltage. The "I/O" LED
flashes red. Following an error free start up, the "I/O" LED changes to a green,
steady light.
In the case of a fault the "I/O" LED continues blinking red. The fault is cycli-
cally displayed with the blink code.
Fig. 3-19: Signalling the LED's node status
After overcoming a fault, restart the Coupler by cycling the power.
I/O
green
off
red
red
blinks
red
blinks cyclically
WAGO-I/O-SYSTEM 750
DeviceNet
Color Meaning
red /green The 'I/O' LED indicates the node operation and signals faults occur-
/ orange ring.
Switching on
the power supply
Coupler/Controller starts up
"I/O"-LED is blinking
No
Test o.k.?
Yes
"I/O"-LED is shining
ready for operation
Meaning
Data cycle on the internal bus
No data cycle on the internal bus
Coupler hardware defective
When starting: internal bus is initialized
During operation: general internal bus fault
Fault message during internal bus reset and internal fault:
"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)
Fieldbus Coupler/Controller • 57
Fieldbus Coupler 750-306
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