WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration page 105

LED
LINK
BF
DIA
TxD/RxD red
LINK BF
Off
Off
On
On
On
*
WAGO-I/O-SYSTEM 750
PROFINET IO
Color Significance
green The LINK LED shows information on the connection to the PROFINET
IO network and is used to identify the station by means of the MAC
address (2Hz blink frequency when I/O supervisor requests the
participant blink test).
red The BF LED shows information on the condition of the data exchange
between the buscoupler and the I/O controller.
red The DIA LED shows parameter setting faults and external diagnostics.
The buscoupler sends and receives PROFINET IO telegrams.
DIA TxD/
RxD
Off Off Off
On * Off
blinks * Off
blinks * pulses The physical network
Off * On
* On *
* not relevant
Significance
The buscoupler is not
provided with its required
operating voltage or a
hardware fault is present.
The operating voltage for the
buscoupler is present. The
physical connection to the
PROFINET IO is not
established.
A physical connection is not
established between the
buscoupler and I/O
controller.
connection to the I/O
controller is established.
However, data exchange
could not be carried out.
The buscoupler is performing
a productive data exchange
with the I/O controller.
Configuration and parameter
setting has been taken over
by the buscoupler.
The buscoupler reports a
diagnostics information
which is still present.
PROFINET IO 750-340
LED Indication
Remedy
Check the voltage supply to
the bus coupler. Replace the
buscoupler if necessary
Make sure that the RJ45
socket is connected to the
switch using a CAT 5
Ethernet cable.
Establish a connection
between the buscoupler and
I/O controller via the
network.
Check the device names that
have been allocated to the
device. Check the
configuration of I/O device.
The data exchange works
trouble free. A diagnostic
information such as cable
break on an analog input
module is active.
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