310 Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Appendix A Troubleshoot the Module
Table 44 - Ethernet Link Status (LINK 1/LINK 2) Status Indicator
Status Description
Off One of the following conditions exists:
• No link.
• Port administratively disabled.
• Port disabled because rapid ring fault condition was detected (LINK2).
Green One of the following conditions exists:
• A 100 Mbps link (half- or full-duplex) exists, no activity.
• A 10 Mbps link (half- or full-duplex) exists, no activity.
• Ring network is operating normally and the controller is the active supervisor.
• Ring network has encountered a rare partial network fault and the controller is the
active supervisor.
Flashing green One of the following conditions exists:
• A 100 Mbps link exists and there is activity.
• A 10 Mbps link exists and there is activity.
Table 45 - SD Card Activity (SD) Status Indicator
Status Description
Off There is no activity to the SD card.
Flashing green The controller is reading from or writing to the SD card.
Flashing red The SD card does not have a file system.
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