WAGO-I/O-SYSTEM 750
Diagnostics 115
750-375 PROFINET IO advanced Fieldbus Coupler
Manual
Version 1.1.0
Pos : 70.9 /Serie 750 (WAGO-I/ O-SYST EM)/Di agnose/Fel dbus koppl er/-contr oller/F eldbusst at us aus werten (RUN, BF , DI A) (750-375, -377) @ 13\ mod_1353592473713_21. doc x @ 106832 @ 3 @ 1
10.1.1
Evaluating the Fieldbus Status
The top three LEDs (RUN, BF and DIA) are used to indicate the operating status
of PROFINET IO communication.
Table 55: Fieldbus diagnostics – solution in event of error
LED
Status
Explanation
Solution
RUN
green
The power supply is ON.
-
green
flashing
Part of or the entire fieldbus node
is in energy-saving mode or output
mode due to the PROFIenergy
"Start Pause" command.
1. Use the PROFIenergy "End Pause"
command to exit energy-saving
modes.
OFF
The power supply is OFF.
1. Check the power supply
(24 V, 0 V).
BF
green
flashing
1 Hz, pulse-no-pulse ratio 1:1 (for
3 sec.):
Node flashing test (DCP Control
Signal FlashOnce).
With repetitive node flashing tests
in succession, the indicator light
can briefly capture the status of the
group fault display (red).
-
red
There is no ETHERNET
connection (link).
1. Check the network cable.
red
flashing
There is an ETHERNET
connection on at least one port. A
PROFINET connection (IOAR) is
not established.
1. Check the connection between IO
controller and IO device.
2. Check if the right device name has
been assigned for the IO device.
3. Check if the connected network
infrastructure ETHERNET link is
100 Mbit/s full-duplex compliant.
OFF
At lease on application relationship
has been established to an IO
controller (IOAR).
-
DIA
red
Parameterization error, module
differences or diagnostics display.
1. Check the parameter settings and
fieldbus node setup or evaluate the
diagnostics display.
Evaluating the diagnostics display!
A detailed description of the diagnostics display analysis is
available in the chapter "PROFINET IO Diagnostics"!
The integrated LNK and ACT LEDs display the physical fieldbus connection and
network activity on the RJ-45 fieldbus connections directly.