Multiple Daq assistant in sequence

Hi,

I am a complete new user of labview.

I am trying to take a calibration reading from a load cell to calculate an offset, followed by a test with the offset removed. My attempt at creating the block diagram falls over at the second instance of daq assistant.  What am I doing wrong?

I have attached the block diagram, I know there are a few loose ends but once I have solved the acquisition issue I will export data to a report.

Thanks in advance