Fieldbus Coupler 750-337, 750-338
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65
Fieldbus
Coupler
WAGO-I/O-SYSTEM 750
CANopen
3.1.7 LED Display
The coupler possesses several LEDs for on site display of the coupler operat-
ing status or the complete node.
24V 0V
01 02
STOP
RUN
TX
I/O
CANopen
C
D
B
A
RX
OVERFLOW
C
A
24V 0V
01 02
STOP
RUN
TX
I/O
C
CANopen
D
B
A
RX
OVERFLOW
A
B
Fig. 3.1-15:
Display Elements
g033702x
The LEDs can be divided into three groups.
The first group = fieldbus contains the LEDs with the denotation CAN-ERR
(red), RUN (green), Tx-Overflow (red) and Rx-Overflow (red) signalling the
operating status of the communication via CAN.
The second group = internal bus consists of the I/O-RUN LED (green) and the
I/O ERR LED (red). The internal bus status and the software exception codes
are signalled by these LEDs.
The third group uses green LEDs. They are located on the right-hand side of
the coupler power supply. These display the status of the supply voltage.
