sbRIO9642 analog I/O connector

Hello, 

I am using sbRIO-9642 to measure the value of voltage and current.

What I thought is using J7: analog I/O connector as the input of voltage.

The question is: choose which module in Labview as the signal input? I used sbRIO-9642 -> FPGA Target -> ModA -> ModA/AI1 as voltage signal input, but I meet this problem:

I just start to use sbRIO and Labview :(

Thanks for your answers.