establish a VI to trigger data acquisition when certain conditions are met

[allbig]

yes school project 

[Blokk]

I thought so. Well, you should start to learn LabVIEW then. How much time do you have for the whole project? It would be beneficial if you could spend a couple of weeks purely learning LabVIEW. After, you can come back to this post, and we can guide you through your work using for example a Producer/consumer pattern. But we will not do your home work. Give questions however any time regarding to coding, if you do not understand something, but also attach a VI then.

But first you have to learn the basics, otherwise we cannot help you sufficiently!

If you are a student, you can access the self-paced online teaching material. Start with "LabVIEW Core 1".

http://www.ni.com/academic/students/learn/

http://sine.ni.com/myni/self-paced-training/app/main.xhtml

Edit:

Regarding to the Tektronix LabVIEW driver. After installing it, you should find the VIs from the Block Diagram via: "Instrument I/O" --> "Instr drivers" --> "Textronix TDS 3000 series". Also, you can find Example code for your oscilloscope if you go to Help --> Find examples..." --> and type here into the search field: "Tektronix", and enter:

[allbig]

Hello ,
when I use his examples I error Returns

[Blokk]

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@allbig wrote:

Hello ,
when I use his examples I error Returns

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Please use normal text style when you write, do not use the "insert code" for your text.

Instead of the transfer current example, I would try the first or third VI with some real signal connected to the oscilloscope. I guess the error happens because you did not specify the proper GPIB port number before running the example. You lack many basic things in LabVIEW, you should really learn the basics first, without that this project is going to be painful...

edit: If you specified the correct GPIB port, then it can be that some settings were not done at the oscilloscope side maybe? Anyway, try the normal waveform acqusition examples (1st and 3rd VI). If you get an error, please save the VI with the actual settings (Edit --> Make current values default), and atttach it here, so we can see what kind of settings you use when trying to run the examples...