Rockwell Automation Publication 193-UM014C-EN-P - August 2016 17
Installation and Wiring Chapter 1
Figure 6 - Ring Ethernet Topology
The Cat. No. 193-DNENCATR Module supports the Rockwell Automation
Device Level Ring (DLR) topology as a slave device in which the EtherNet/IP
network still continues to communicate if one of the network chains is
disrupted.