How do I program more than one VI in one main VI?

[Mizar]

Sorry, guess the attachment did not go with the e-mail.

[Mizar]

Hi Kenny:

I cannot seem to get the attachment onto the e-mail.  I will try again.

[Kenny_K]

The attachement did go through, I just posted the same time you did.

It sppears that the step value array is still not populated.  what values do you have in the array for the step values??

[Mizar]

Hi have them populated from 0 through 8.  The AO Update does update the values.  I have a wave form chart monitoring it.  Guess the problem I have is updating the channel with the values.  Guess, I will send you the modified VI.

Thanks for the help.

Mizar

[Dennis_Knutson]

Why you add that AO Update Channel function? The AO Single Update is enough. You also don't have a channel list wired to the function you added. I think that all you managed to do was reset the analog output after the AO Single Update is called. You might want to read the shipping document called "LabVIEW Measurements Manual". In your version of LabVIEW it can be gotten by going Help>Search the LabVIEW Bookshelf.

[Kenny_K]

I know that it should nto matter, but try changing the opcode to 1 instead of 0 on the single update.  Also, make an indicator for the boolean data written on the update vi to verify that the data was actually written to the device.

I do not have a module handy, so i cant test it myself.

Kenny

[Mizar]

Hi Dennis:

Thanks for the update.  I have remodified the VI without the AO channel update function.  However, the channel list is already wired into the AO config.  Guess, I am missing something.  I am reading the document you had indicated.

Thanks,

Mizar.

P.S.  I have enclosed the modified VI

[Dennis_Knutson]

Stop doing that. You just added a second analog read when there already was one there!

My suggestion is for you go to the very beginning and not worry about LabVIEW for a little while. Go to MAX (Measurement & Automation Explorer) and run the test panel for your board. Set an output voltage and see if you can measure it with an external DMM. Then, apply a know voltage to the analog inputs you want to use and run the test panel for that. See if you are measuring the applied voltage. If all looks correct, go back to LabVIEW and run the example. While the VI runs, again monitor the voltage output to see if it's working there. Then look at the results from the analog read. The array indicator in the original example will show the results. Make sure you have added all of the inputs channels to the front panel channel control. The default is only channel 0.

[Mizar]

Hi Dennis:

I did what you had suggested.  The analog output channels work correctly when the test panel for the PCI6052E is run.  The same holds good for the AI channel.  However it does not seem to cooperate with the example in labview.  I am absolutely sure that all the channels are listed in the front panel of the VI.  Also, I have populated the voltages to be used for the AO channel.  When I run the VI, I get the following error message:  AI Buffer Read (-10368).

Thanks,

Mizar.

[Dennis_Knutson]

That error code doesn't make much sense to me. I thought that was only associated with the old serial port driver. Hve you tried running any of the simple shipping examples to see if you get the error there? I could have easily missed something as I've only used DAQmx in the past few years.