dual tone measurement through labview

[xerom]

0utlaw and Ravensfan, I called NI and resolved the issue, apparently it was the order that I had created the VIs that was the error. I had to create the DAQAssistant VI then the Filter then the Spec Measurements VI in that order for it to work, and it did. I'm not sure why it had to be that way.

So the posted VI is what I have right now so far. I have the peak frequency values run through a comparison to see whether it is within a range of frequencies and that in turn lights up TWO LEDs shown in the rfont panel; one for the row and one for the column respectively.

What I'd like to do is also have the code output the numbers that I'm inputting through the whole VI, essentially like a textbox that shows all the numbers being keyed in. Even maybe have a maximum value of characters (so it doesn't exceed 15 for example) how would I do that?

[RavensFan]

I'm glad they were able to figure out how to get it to work for you.  My gut feel is that this is still a bug with LabVIEW.  It shouldn't matter what order you create those Express VI's.  Especially considering they have no knowledge of each other until they've been dropped onto the block diagram and then wired up.  And I don't think versions of LabVIEW at least 2 or 3 versions before this had the problem.

You can store a string of numbers by keeping them in a shift register.  Whenever a new number is added, you concatenate that to the end of the string and put it back in the shift register.