Led Display - WAGO I/O System 750 Series Manual

3.1.8 LED Display

The coupler possesses several LEDs for on site display of the coupler operat-
ing status or the complete node.
Fig. 3-18: Display elements 750-346
The module status (MS) and the network status (NS) can be displayed by the
top 4 LED's. They react as described in the table.
Module status
OVERFL
(red)
off
off
off
blinking
on
blinking
Table 3-1: Fault and status displays: MS
Network status
BUSOFF
(red)
off
off
off
blinking
on
Table 3-2: Fault and status displays: NS
WAGO-I/O-SYSTEM 750
DeviceNet
DEVICENET
OVERFL
MS
RUN
BUS OFF
NS
CONNECT
I/O
RUN State of device
(green)
off no power
on device operational
blinking device in standby
off minor fault
off unrecoverable fault
blinking device self testing
CONNECT State of device
(green)
off not powered, not online
blinking online, not connected
on link ok online, con-
nected
off connection time out
off critical link failure
Fieldbus Coupler
Fieldbus Coupler 750-346
Meaning
No power supply to the device.
The device operates correctly.
The device needs to be configured or has been partly
configured.
A minor fault has occurred. It exists a diagnostics.
The device is defective, needs to be serviced or
replaced.
The device performs a built-in check.
Meaning
No power supply to the device / fieldbus supply /
DeviceNet cable not connected and „Duplicate MAC
ID detection" is not yet completed.
The device operates correctly at the fieldbus. How-
ever, it has not yet been integrated by a scanner.
The device operates correctly at the fieldbus. At
least one connection to another device has been
established.
A minor fault has occurred.
The device has detected a fault. It is unable to per-
form any more functions in the network.
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