User manual

Publication ENET-UM001I-EN-P - January 2010 175
Status Indicators Appendix A
1756-EN2TR EtherNet/IP
Module Status Indicators
The 1756-EN2TR EtherNet/IP communication module has several
status indicators.
1756-EN2TR EtherNet/IP Module Status Indicators
Module Status
Display
Health Status Indicator -
Link 2 Status Indicator
Link 1 Status
Indicator
Link Status Indicators
Indicator Status Description
LNK1,
LNK2
Off No link, or port administratively disabled, or port disabled due to rapid ring faults (LNK2).
Green One of these conditions exists:
• A link
exists on the port
• The ring network is
operating normally on active ring supervisor (LNK2)
• Ring partial network fault detected on active ring supervis
or (LNK2)
Flashing green Activity exists on the port