WAGO-I/O-SYSTEM 750
Diagnostics 195
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
11.1.1 Evaluating Fieldbus Status
The health of the ETHERNET Fieldbus is signaled through the top LED group
('LINK ACT 1, 2', 'MS', und 'NS').
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.
Table 57: Fieldbus Diagnostics – Solution in Event of Error
LED
Status
Meaning
Solution
LINK ACT 1, 2
green
The fieldbus node is connected to
the physical network.
-
green
flashing
The fieldbus node sends and
receives ETHERNET telegrams
-
off
The fieldbus node is not
connected to the physical
network.
1. Check the fieldbus cable.
MS
green
Normal operation
-
green
flashing
The system is not yet configures -
red
The system indicates a not
remediable error
1. Restart the device by turning the
power supply off and on again.
2. If the error still exists, please
contact the I/O support.
red/green
flashing
Self test
-
off
No system supply voltage
1. Check the supply voltage.
NS
green
At least one connection
(MODBUS/TCP or EtherNet/IP) is
developed (also connection to the
Message rout applies)
-
grün
flashing
No connection (MODBUS/TCP or
EtherNet/IP).
-
red
The system indicates a double
IP-address in the network
1. Use an IP address that is not used
yet.
red
flashing
At least one connection
(MODBUS/TCP or EtherNet/IP)
announced a Timeout, where the
controller functions as target.
1. Restart the device by turning the
power supply off and on again.
2. Develop a new connection.
red/green
flashing
Self test
-
off
No IP address is assigned to the
system.
1. Assign to the system an IP address
for example by BootP or DHCP.