Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 125)

Publication 1761-UM006E-EN-P - August 2005
Troubleshooting 9-5
Table 9.6 Series D LED Indicators
LED Description Color State Indicates
POWER module power green on The module is powered.
off The module does not have power.
RS-232
TX/RX RS-232 data
transmission
indicator green flashing Data is being transmitted or received over the RS-232 port.
off No RS-232 traffic.
LINK
Ethernet
activity status
and 10-Base-T
or 100-Base-T
indicator off No link or continuous data activity on 10MB Ethernet.
amber on 10-Base-T link is good.
green
on 100-Base-T link is good.
TX/RX Ethernet
activity status
and half-duplex
or full-duplex
indicator Off No activity.
amber flashing
Half-duplex data activity.
(1)
green flashing
Full-duplex data activity.
(1)
FAULT fault condition
indicator red on lit when a fault condition is present, possible causes
• Duplicated IP address on network
• Network controller error
flashing one of the following:
• faulty network connection at power up
• ENI/ENIW does not have a saved IP address (uses default IP address
192.168.1.254)
• No BootP/DHCP response
off Hardware is functioning normally.
(1) Any Ethernet network activity; not necessarily to/from the ENI/ENIW.