Rockwell Automation 1756-ENET/B ControlLogix EtherNet Comm. Interface Module, Series B Installation Instructions - Manual (Page 14)

14 ControlLogix Ethernet Communication Interface Module
Publication 1756-IN053D-EN-P - June 2002
Troubleshooting the Module
This table describes module health (OK) indicator displays, module
status, and recommended action:
This table describes the transmit (TXD) and receive (RXD) indicator
display:
Where to Find Information on Configuring the Ethernet Module
Now that you have installed your Ethernet module, you must
configure it with an IP Address, Subnet Mask, and Gateway Address.
Refer to the configuration chapter of your ControlLogix Ethernet
Communication Interface Module User Manual, publication
1756-UM051.
If the OK indicator is then module status is take this action
Off Not operating. Apply chassis power.
Verify module is completely inserted
into chassis and backplane.
Red, then flashing red
or flashing green Performing powerup
diagnostics. None, normal operation.
Green Operating. None.
Red flashing Not configured. Configure module (refer to the
configuration chapter of your ControlLogix
Ethernet Communication Interface Module
User Manual, publication 1756-UM051)
Red Unrecoverable fault. Repair or replace module.
If this indicator is the module is
TXD Green Transmitting data
Off Not active
RXD Green Receiving data
Off Not active