98 Diagnostics
WAGO-I/O-SYSTEM 750
750-325 CC-Link Fieldbus Coupler
Manual
Version 2.0.1
9.1.2
Evaluating Node Status – I/O LED (Blink Code Table)
The communication status between fieldbus coupler and the I/O modules is
indicated by the I/O LED.
Table 54: Node Status Diagnostics – Solution in Event of Error
LED Status Meaning
Solution
I/O
green
The fieldbus node is operating correctly.
Normal operation.
green
cyclical
flashing
The set number of occupied stations and
extended cyclic setting are shown with
two consecutive flashing sequences.
There are short intervals between the
sequences.
Evaluate the flashing sequences
shown.
The flashing indicates the configuration
setting consisting of the indicator signal
for the number of occupied stations
and the subsequent indicator signal for
the extended cyclic setting (not
applicable for V1.1).
orange
flashing
Start of the firmware.
1 … 2 seconds of rapid flashing indicates
start-up.
-
red
Fieldbus coupler hardware defect
Replace the fieldbus coupler.
red
flashing
Flashing with approx. 10 Hz indicates the
initialization of the local bus or a local bus
error.
Note the following flashing sequence.
red
cyclical
flashing
Up to three successive flashing
sequences indicate local 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 local bus.
The fieldbus coupler supply is off.
Device boot-up occurs after turning on the power supply. The I/O LED flashes
orange.
Then the local 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 blinking green, depending on the
settings for the configuration.
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.