Technical data

Feldbus Coupler 750-344 / -345 • 71
LED Indication
WAGO-I/O-SYSTEM 750
INTERBUS
3.1.7.3 Node Status
The I/O-LED indicates the operation of the node and signals faults occurring.
I/O Meaning
green Data cycle on the internal bus
Off No data cycle on the internal bus
red Hardware defect in the coupler
red
flashing
During runup: Internal bus initialized
During operation: General internal bus error
red
flashing cycle
Fault message during internal bus reset and internal fault
orange I/O LED lights up orange during an update of the bus coupler
firmware. The color orange cannot be indicated during normal
operation.
Coupler boot-up occurs after switching on the power supply. While doing so,
the I/O LED flashes red. In the case of an error the I/O LED continues
blinking red.
In the event of error, the I/O LED continues to flash red. The error is indicated
by the blink code cycle.
Supply voltage
switch on
Coupler start
“I/O” LED is blinking red
Error
No
Yes
“I/O” LED
is shining green
Fieldbus start
“I/O”LED
1st flash sequence
(Introduction of the error indication)
1st pause
“I/O” LED
2nd flash sequence
Error code (number of flash cycles)
“I/O” LED
3rd flash sequence
Error argument (number of flash cycles)
2nd pause
Fig. 3-11: Signaling the node status g012118d