Field Bus Status - WAGO I/O SYSTEM 750 750-833 Manual

110 • Programmable Field Bus Controller 750-833
LED Signaling

3.11.2 Field Bus Status

The upper four LEDs signal the operating status of the PROFIBUS
communication.
LED
RUN
BF
DIA
BUS
RUN
off
on
on
on
on
on
Color Meaning
green The RUN-LED shows the user whether the field bus controller is
functioning correctly.
red The BF-LED indicates whether the communication is functioning
via the PROFIBUS.
red The DIA-LED indicates an external diagnostics.
red The BUS-LED signals a projecting fault.
BF DIA BUS
off off off
on * off
blinks * off
blinks on blink
code
off * off
* on *
* not relevant
Meaning
No operating voltage to
the coupler or a
hardware fault is
present.
PROFIBUS interface
started, baud rate was
not yet recognized.
Baud rate recognized,
station not yet
parameterized and
configured.
Slave was incorrectly
parameterized.
The coupler is
exchanging data.
The coupler signals an
existing diagnostics.
Remedy
Check the voltage supply for
the bus coupler and replace the
bus coupler if necessary.
Check to see whether the
PROFIBUS is connected.
Check to see whether the baud
rate parameterized on the
master is supported by the
coupler.
Replace the bus coupler
because there is a hardware
defect.
Check the configuration and
the slave addresses.
Load the coupler by switching
the supply voltage off and on
again.
Evaluate the blink code
Ok
The data exchange is
functioning without any
problems so that you may
obtain diagnostics information,
for instance on a cable
breakage in an analog input
terminal.
WAGO-I/O-SYSTEM 750
Bus System