Rockwell Automation 1756-EN3TR ControlLogix EtherNet/IP Communication Module Installation Instructions - Manual (Page 15)

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Publication 1756-IN612B-EN-P - December 2009
Use the Module in a Device-level Ring (DLR) Network
The module is configured by default to be used in a linear or star topology, or
as a ring node in a DLR network. Follow these steps to use the module in a
DLR network as a ring supervisor.
1. If you are using the unit as a ring supervisor, follow the procedures
outlined in the online help that accompanies RSLinx or RSLogix 5000
software to enable the ring supervisor function with this software.
2. Refer to the EtherNet/IP Ring Topology Application Guide,
publication ENET-AP005 , for information on setting up
EtherNet/IP network topologies.
Connect to the Module via the USB Port
The module has a USB device port that uses a series B receptacle. To use the
USB port, you must have RSLinx Classic software, version 2.55 or later,
installed on your computer.
IMPORTANT
•
Make sure at least one ring supervisor is present before connecting the
last link of a device-level ring network and physically closing the ring.
•
Do not connect nodes that do not support a device-level ring as
members of the ring.
WARNING
The USB port is intended for temporary local programming purposes only and
not intended for permanent connection. If you connect or disconnect the USB
cable with power applied to this module or any device on the USB network, an
electrical arc can occur. This could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
A Samtec Inc. RSP-119350 USB cable is required to maintain hazardous
location certifications.