P1-04AD analog input card configuration

I'm working with a arduino based PLC from automation direct, P1AM-100. My question is if i'm using two analog input card on my rack (P104AD), how do I configure the inputs to different signals? Currently I have one card working using the following config:

const char P1_04AD_CONFIG[] = { 0x40, 0x03, 0x00, 0x00, 0x20, 0x02, 0x00, 0x00, 0x21, 0x02, 0x00, 0x00, 0x22, 0x03, 0x00, 0x00, 0x23, 0x03 };

I got this from the documentation website P1-04AD | P1AM Documentation