168 Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
Chapter 6 Configure the Redundant I/O System
4. Click Change.
The Module Definition dialog box appears.
IMPORTANT
When using IP address swapping, the same IP address, subnet
mask, and gateway address is assigned to both the partnered
EtherNet/IP adapters.
You cannot assign the backup module an IP address; it is
automatically assigned the next highest IP address after the
primary’s. The backup module of the pair, is assigned the primary’s,
or active module’s, IP address, plus one.
For example, if you assign the IP address of 192.168.1.3 to the
primary (active) module, after synchronization, the secondary
EtherNet/IP adapter automatically is assigned IP address
192.168.1.4.
Note: This graphic only is for illustrative purposes. In normal
operation, the secondary adapter is not shown in the RSWho
window.
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