DI/DO Config EtherNet/IP

Does anyone know the trick to expanding the DI/DO count to 1024 using E/IP adapter option? I can change the input and output word size to 64 on adapter config screen but I can't assign anything above 512 in the I/O config page.

I figured this out. Set system variable $MAX_DIG_PRT to 1024, cycle power and all 1024 DI/DO will show on the TP I/O screen.

The correct way to do this is perform a controlled start then select MENU, PROGRAM SETUP. This screen provides the ability to modify program limits.