LS high speed counter

hello floks,

i am working on application with interfacing endcoder to LS 120s master-k sreies

want to utilize the built-in function high speed counter and have some questions:
1-where to input my signal? it has three inputs:
a-EN enable
b-U/D (0 for up, 1 for down)
c-PR (when on makes PV equals current value)
2-can i use two high speed counter simultaneously?

thanks for advance

see the infolink or the manual for it,