Rockwell Automation Publication 5069-UM002A-EN-P - January 2019 149
Connect to Different EtherNet/IP Network Levels Chapter 6
6. If the following warning appears, read it carefully and click Yes
to continue.
IMPORTANT Before you change the EtherNet/IP mode, make sure that you
understand the impact of a mode change on your controller.
For more information on the impact of changing the EtherNet/IP
mode, see
Table 8 on page 144.