Rockwell Automation 1756-Enxxx_Ewxxx EtherNet/IP Modules Installation Instructions User Manual
Page 92
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Rockwell Automation Publication ENET-IN002F-EN-P - January 2014
Appendix A 1756 EtherNet/IP Status Indicators
Network Status (NET)
Indicates if CIP connections are established.
IMPORTANT: The new-series 1756-EN2TR and
1756-EN3TR modules have a NET status indicator.
The older-series 1756-EN2TR and 1756-EN3TR
modules do not have a NET status indicator.
Off
One of these conditions exists:
• The module is not powered.
– Verify there is chassis power.
– Verify that the module is completely inserted into the
chassis and backplane.
– Make sure the module has been configured.
• The module is powered but does not have an IP address.
Assign an IP address to the module.
Flashing green
The controller has an IP address and one of these conditions
exists:
• The module has not established any CIP connections.
If connections are configured for this module, check the
connection originator for the connection error code.
• One or more connections have timed out. For example, an
HMI or I/O connection has timed out.
Reestablish the connection.
Green
The module has established at least 1 CIP connection and is
operating properly. The module’s IP address scrolls across the
Module Status display.
Red
The module is in conflict mode. It shares an IP address with
another device on the network. The module’s current IP address
scrolls across the Module Status display. The display scrolls: OK
For example: OK 10.88.60.196 Duplicate IP - 00:00:BC:02:34:B4
Change the module’s IP address.
Flashing green/
flashing red
The module is performing its power-up testing.
LINK 1 (3)
LINK 2 (4)
Off
One of these conditions exists:
• The module is not powered.
– Verify there is chassis power.
– Verify that the module is completely inserted into the
chassis and backplane.
– Make sure the module has been configured.
• No link exists on the port.
• The port is administratively disabled (LNK2).
• The port is disabled due to rapid ring faults (LNK2).
Flashing green
Activity exists on the port.
Green
One of these conditions exists:
• A link exists on the port.
• The ring network is operating normally on active ring
supervisor (LNK2).
• A ring partial network fault was detected on the active ring
supervisor (LNK2).
Table 2 - 1756-EN2TR, 1756-EN2TRXT, 1756-EN3TR EtherNet/IP Module Status Indicators
Status Indicator
Description
Status
State