Festo MSE6-E2M Original Instructions Manual page 90

8 Diagnostics and error handling
[NS] – Network Status
LED Sequence
(green/red)
EtherNet/IP network protocol
ON
OFF
lights up
green
ON
OFF
flashes green
ON
OFF
lights up red
ON
OFF
Flashes red
ON
OFF
flashes
alternately
red/green
ON
OFF
off
Modbus TCP network protocol
ON
OFF
lights up
green
ON
OFF
off
1) The behaviour of the LED indicator is dependent on the network protocol used.
Tab. 8.11 LED indicator [NS] – Network Status
90
1)
Significance
Normal operating status.
Bus node is online and has a net­
work connection.
The bus node is online and has
been attributed an IP address but
does not have a configured net­
work connection.
Communication has failed.
Non-permitted IP address set that
is already used in the network.
One or more "I/O connections"
are in the time-out status
Self-test is carried out
Bus node is offline.
At least one Modbus connection
active
No Modbus connection active
Remedy
–
• Check configuration, it is pos­
sible that the bus node is not
assigned to any master/scan­
ner.
• Correct IP address.
• Check the physical connec­
tion to the master/scanner.
–
• Check network connection.
–
–
Festo – MSE6-E2M-SY-EN – 1703d – English