FLEX I/O EtherNet/IP Adapter Module User Manual, 1794-UM006A ...

The Module Properties window will open.
Using Rack Optimized Discrete I/O 4-11
8. Enter or select the following parameters (the values we used are
listed in the table):
Name FLEX_Digital_Output
Slot 1
Comm Format Rack Optimization
Electronic Keying Compatible Module
9. Click on the Finish button to accept the configuration. The I/O
Configuration in the Project window should look similar to the one
shown below.
Publication 1794-UM006A-EN-P - July 2001