Hello, please, how do i wire a square wave generator to my AB 1400 to simulate HSC

Hello,  please i wish to simulate HSC in Allen Bradley 1400 using a square wave generator. i have built and tested the square wave generator it works well, the issue is how to wire it to Allen Bradley 1400.

also i wish to understand IO Configuration filter settings, am using Allen Bradley 1400 B series Processor 

Thanks 

Square wave generator simulating with AB 1400 for HSC.pdf