Problem with displaying data

[Ratmore18]

    I am having trouble displaying data after it is processed from a voltage amplitude to a frequency.  The plot where the results should be displayed has the values on the y-axis that I would expect from the instrument, but it does not plot anything. 
I have input from my DAQ assistant and it displays a voltage with time plot that is just what I expect, then I dump that into Timing and Transition measurements to output a frequency and that plot is the one with nothing on it.

Any sugguestions?

[Tom Haggerty]

If you only send one point to a plot it will not show up.  You need at least two points going to the plot to have any values show.

Tom

[Ratmore18]

Ok, but if the DAQ assistant is outputting a voltage with time and Timing and Transition Measurement (TTM) is obtaining a frequency from that, shouldn't that too be a frequency with time?  If not, how do I get multiple data points from this kind of set up?

[Tom Haggerty]

The TTM function calculates the frequency from the signal you feed to it.  The output is a scaler value of the frequency.

To get a history of the frequency value would require the fequency output from the TTM function to be stored in an array that gets read into a chart inside a loop.

Tom

[Ratmore18]

Thanks Tom.
I got it working now.

-Mark