Network status (ns) indicator, Link status (lnk) indicator – Rockwell Automation 1788-ENBT EtherNet/IP Daughtercard Installation Instructions User Manual
Page 8
8 EtherNet/IP Daughtercard
Publication 1788-IN054A-EN-P - September 2002
Network Status (NS) Indicator
This LED indicates whether or not the daughtercard has an IP address and whether
or not connections are established.
Link Status (LNK) Indicator
This LED indicates whether or not the daughtercard is communicating on the
Ethernet link.
Condition
Status
Indicates
Recommended Action
off
not initialized
The daughtercard does not have an
IP address and is operating in
BOOTP mode.
Verify that the BOOTP server is
running.
flashing
green
no CIP
connections
established
The daughtercard has an IP
address, but no CIP connections are
established.
Normal operation if no connections
are configured. No action required.
If connections are configured, check
connection originator for connection
error code.
green
CIP connections
established
The daughtercard has an IP address
and CIP connections (Class 1 or
Class 3) are established.
Normal operation. No action required.
red
duplicate IP
address
The daughtercard has detected that
the assigned IP address is already
in use.
Verify that all IP addresses are unique.
flashing
red/green
self-test
The daughtercard is performing its
power-up self-test.
Normal operation during powerup.
Condition
Status
Indicates
Recommended Action
off
no link
The daughtercard is not connected
to a powered Ethernet device. The
daughercard cannot communicate
on Ethernet.
Verify that all Ethernet cables are
connected.
Verify that Ethernet switch is
powered.
flashing
green
self-test
The daughtercard is performing its
power-up self-test.
Normal operation during powerup.
data
transmission
and reception
The daughtercard is communicating
on Ethernet.
Normal operation. No action required.
green
link okay
The daughtercard is connected to a
powered Ethernet device. The
daughtercard can communicate on
Ethernet.
Normal operation. No action required.