How to enter constants into Labview that will affect the graph?

How do you enter constants into Labview in which x and y would be dependent on them? Ex. Say I am creating a graph of voltage vs time and I want to have constants such as trigger level (such as wanting my graph to start recording data when it reaches 20 volts and stop recording after 20 volts). I would also want to have a time interval as a constant. I have no clue how to do this in labview so I am looking for some kind of help. Thanks
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You would just make the values write to an array of x vs y.
The values would only write if some boolean was true (such as voltage > 20)
Then cluster the x and y and send the cluster to a graph.
Message Edited by Cory K on 12-11-2008 11:04 AM
Cory K
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How to enter constants into Labview that will affect the graph?

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