116 Diagnostics
WAGO-I/O-SYSTEM 750
750-806 Fieldbus Controller DeviceNet
TM
Manual
Version 2.0.0
10.1.2
Evaluating Node Status – I/O LED (Blink Code Table)
The communication status between fieldbus coupler/controller and the I/O
modules is indicated by the I/O LED.
Table 44: Node Status Diagnostics – Solution in Event of Error
LED Status
Meaning
Solution
I/O
green
The fieldbus node is operating correctly.
Normal operation.
orange
flashing
Start of the firmware.
1 … 2 seconds of rapid flashing indicate
start-up.
-
red
Fieldbus coupler/controller hardware
defect
Replace the fieldbus coupler/controller.
red
flashing
Flashing with approx.. 10 Hz indicates
the initialization of the internal bus or of
a internal bus error.
Note the following flashing sequence.
red
cyclical
flashing
Up to three successive flashing sequences
indicate internal data bus errors. There
are short intervals between the sequences.
Evaluate the flashing sequences based
on the following blink code table.
The blinking indicates an error message
comprised of an error code and error
argument.
off
No data cycle on the internal bus.
The fieldbus coupler/controller supply
is off.
Device boot-up occurs after turning on the power supply. The I/O LED flashes
orange.
Then the bus is initialized. This is indicated by flashing red at 10 Hz for
1 … 2 seconds.
After a trouble-free initialization, the I/O LED is green.
In the event of an error, the I/O LED continues to blink red. Blink codes indicate
detailed error messages. An error is indicated cyclically by up to 3 flashing
sequences.
After elimination of the error, restart the node by turning the power supply of the
device off and on again.
