flow totalizing

I am very new to plcs I have a flow input on a slc 500 how do i get that to give me a totalizer that can be displayed on an intouch machine i am using rslogics
Thank you

This is simple algebra. FlowTotal = rate x time. If you have a one second timer you divide the rate by 60 to get gallons per second and add it to your existing total to get the new total. You may need to use another register to get thousand gallons or whatever and zero out your totalizer to avoid overflow.