Technical data

Fieldbus Controller 750-841 • 97
LED Display
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
3.1.8.2 Fieldbus status
The health of the ETHERNET Fieldbus is signalled through the top LED
group (‘LINK‘, ‘MS‘, ‘NS‘ and ‘TxD/RxD‘). The two-colored LEDs ‘MS’
(module status) and ‘NS’ (network status) are solely used by the Ethernet/IP
protocol. These two LEDs conform to the Ethernet/IP specifications.
LED Meaning Trouble shooting
LINK
green Link to a physical network exists
OFF No link to a physical network Check the fieldbus connection.
MS
red / green
flashing
Self test
red The system indicates a not remediable error
red flashing The system indicates a remediable error
green
flashing
The system is not yet configures
green Normal operation
OFF No system supply voltage Check the supply voltage (24V and 0V)
NS
red / green
flashing
Self test
red The system indicates a double IP-address in the
network
red flashing At least one connection announced a Timeout,
where the CONTROLLER functions as target.
green
flashing
No connection
green At least one connection is developed (also
connection to the Message rout applies)
OFF Dem System ist keine IP-Adresse zugeordnet
oder es liegt keine Betriebsspannung an
TxD/RxD
green Data exchange via ETHERNET taking place
OFF No data exchange via ETHERNET