Rockwell Automation 284E ArmorStart with EtherNet/IP - User Manual - Manual (Page 236)

236 Rockwell Automation Publication 280E-UM001B-EN-P - July 2012
Chapter 10 Troubleshooting
Table 46 - Troubleshoot DLR or Linear Network
Issue Description Solution
Supervisor Reports
a Ring Fault
A link on the DLR network may be broken:
• Intentionally, for example, because you are adding or deleting nodes but have not made all physical
connections to restore the set up of the network with/without
the node.
• Unintentionally, for example, because a cable is broken or a device malfunctions.
When this fault occurs, the adjacent nodes to the faulted part of the network are displayed in the Ring
Fault group and the Network Status field = Ring Fault.
The screen shot below shows the Ring Fault section with IP addresses appearing for the last active
nodes. The faulted node is between nodes 10.88.80.115 and 10.88.80.208. If the IP address of either
node is not available, the software will display the node’s MAC ID.
Figure 87 - Ring Fault Section
Once the fault is corrected, the ring is automatically restored, and the Network Status field returns to
Normal.
Determine where the fault condition exists and
correct it.
You may need to click the Refresh Communication
link to update the Ring Fault information to
determine where the fault condition exists.