3.1.3 LED Behaviour
The option has 3 bi-coloured LEDs according to ODVA specifications:
LED Label Description
MS Module Status
NS1 Network Status Ethernet Port 1
NS2 Network Status Ethernet Port 2
The option LED’s operates according to ODVA specifications.
State LED Description
No power Off The device is un-powered
Device operational Green:
Solid green The device is operational
Standby Green:
Flashing green The device needs commissioning
Minor fault Red:
Flashing red The device has detected a recoverable fault
Major fault Red:
Solid red The device has detected an un-recoverable fault
Self test
Red:
Flashing red/green The Modbus TCP option is in self-test mode
Green:
No IP address
Yellow
Steady yellow No IP address configured or obtained
Wink Yellow
Flashing yellow Flash for 20 seconds
Table 3.1: MS: Module Status
State LED Description
No IP-address (no power) Off No link present (or is un-powered)
Connected Green:
Solid green
There is established (at least) one CIP connection to
the device
Duplicate IP Red:
Solid red
The IP-address assigned to the device is already in
use
Self test
Red:
Flashing red/green The Modbus TCP is in self-test mode
Green
Device has been winked Yellow Flashing yellow Flash for 20 seconds
Link present at 10 Mbps Yellow
Steady yellow Link present; but nor winked and no ACD
Table 3.2: NS1 + NS2: Network Status (one per port)
Modbus TCP
9
3
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