Setting Limit for Data and Reset to Zero

[tjhanks]

Hello,

I have a LabVIEW script that takes input from a voltage source (and several other sources), converts it to its actual value, and displays it to the user. What I would like to do it set an upper limit which says that if the voltage/other variables reach their limit, it will reset the voltage/other variables to zero. Ideally I would also like to continuously collect this data to a file until the voltage supply is turned off. Attached is the VI of what I've already written if it helps. 

Thank you! 

[altenbach]

Not sure what a "LabVIEW script" is, but could you save your VI for previous so more people can actually look at it? Thanks! What are "variables"?

[tjhanks]

The variables are voltage, pressure, current, and radiation.  

[tjhanks]

I don't know if what I said was clear enough so here's an example: I have a voltage source and I want to continuously read these voltage values (I am doing so using a USB-231 if it's pertinent) and have them written to a file. If the voltage were to reach 250kV, I would want the voltage to reset to zero. Same for all the other variables I mentioned, but with different limit values. I am unable to revert my VI to a older version of LabVIEW but when I can do so I will attach it for reference.