Omron SYSMAC CJ1W-EIP21 - Manual (Page 86)

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Tag Data Link Parameters Section 3-9
6. In the Device Configuration Window of the Network Configurator, a
mark will be added to each EtherNet/IP Unit to show that data links have
been set.
7. Connect the Network Configurator to the EtherNet/IP network and select
Network
− Download from the menus. The data link settings will be down-
loaded to the EtherNet/IP Units, and the data links will operate.