44 Rockwell Automation Publication ENET-UM004B-EN-P - November 2015
Chapter 4      Add an EtherNet/IP Communication Module to a Controller Project
6. On the New Module dialog box, click the Connection category and 
complete the tasks:
a. Set the Requested Packet Interval (RPI). The range is 25
…750 ms, with 
100 ms as the default. This connection is for status data only, with no 
I/O.
b. Select the Connection over EtherNet/IP, Unicast, or Multicast.
For non-redundant controllers, the default value is Unicast when the 
target device supports unicast; otherwise, the default value is Multicast. 
For redundant controllers, the default value is Multicast when the 
target device supports multicast; otherwise, the default value is Unicast.
c. Click OK.
7. Save the project.
8. If the project does not have a communication path to the controller, click 
Browse to create a path.