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Device Description
WAGO-I/O-SYSTEM 750
750-806 Fieldbus Controller DeviceNet
TM
Manual
Version 2.0.0
4.3
Display Elements
The operating condition of the fieldbus controller or the node is displayed with the
help of illuminated indicators in the form of light-emitting diodes (LEDs).
The LED information is routed to the top of the case by light fibres. In some
cases, these are multi-colored (red, green or red/green (=orange)).
Figure 24: Display Elements
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For the diagnostics of the different domains fieldbus, node and supply voltage, the
LEDs can be divided into three groups:
Table 13: Display Elements Fieldbus Status
LED
Color
Meaning
OVERFL red
Indicates an error or defect on the fieldbus controller
RUN
green
Indicates that the fieldbus controller is operational
BUS OFF red
Indicates an error or malfunction in the network
CONNEC
T
green
Indicates that the fieldbus controller is ready for network
communication
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Table 14: Display Elements Node Status
LED
Color
Meaning
I/O
red/green/
orange
Indicates the operation of the node and signals via a blink code faults
encountered.
USR
red/green/
orange
indicates the state, which is programmed in the user program
+
Table 15: Display Elements Supply Voltage
LED
Color
Meaning
A
green
indicates the status of the operating voltage – system
B
green
indicates the status of the operating voltage – power jumper contacts
More information about the LED Signaling
Read the detailed description for the evaluation of the displayed LED state in the
section “Diagnostics” > … > “LED Signaling”.
