Labview 6 to labview 9 upgrade question

[lakersrl]

I am currently upgrading from labview 6 to labview 9. I've installed the traditional legacy NI Daq driver which took care of many errors that were present. My issue now is how to read the waveform data? as labview 9 does not want to read it. Is there a way to modify the current AI read.VI which acquires the waveform data, or do I need to go to the NI DAQ mx and rebuild everything?

thanks

[smercurio_fc]

What do you mean by "it does not want to read it"? Are you getting an error? If so, what is it?

In general you're better off rewriting the app to use DAQmx. Traditional DAQ is pretty much obsolete. You can read this article to learn how to convert from Traditional DAQ to DAQmx: http://zone.ni.com/devzone/cda/tut/p/id/4342

[lakersrl]

there's no errors present but the waveform chart does not display any data..im kind of new to labview so why do you recommend rewriting everything? whys it better to stay with NIDAQmx rather than the traditional driver?

thanks for your help

[smercurio_fc]

If you post your VI then further analysis can be done.

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@lakersrl wrote:

im kind of new to labview so why do you recommend rewriting everything? whys it better to stay with NIDAQmx rather than the traditional driver?

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Miss the part where I said that Traditional DAQ is pretty much obsolete? Converting from Traditional DAQ to DAQmx is not hard. You'd HAVE to stay with Traditional DAQ if you have an old card that's not supported by DAQmx. Do you? If you post your VI then more specific suggestions can be provided. Also, please provide information as to the DAQ device(s) you are using.

[lakersrl]

Hey, I attached a portion of the main VI. going to be using NI cDAQ 9172 device

[lakersrl]

more spicifically, heres the sub VI attached

[Ben]

The old drivers only work with the old widgets.

You have to upgrade.

Ben

[lakersrl]

any help on how i can upgrade the sub VI i just attched?

[smercurio_fc]

You've posted screenshots instead of actual VIs. You can't debug screenshots. It's better to post the actual VIs. Also, the cDAQ 9172 is just the chassis. You did not indicate what modules are in it.

As for how to convert, did you read the document I linked to?

[lakersrl]

sub VI is atached