LabVIEW 2-output instrument into Multisim

[JungleBoy]

Hi, buddys!

I'm trying to bring two waveforms into Multisim by means of project provided by Patrick Noonan here:

http://forums.ni.com/t5/Circuit-Design-Suite-Multisim/Create-a-LabVIEW-Based-Virtual-Instrument-for-...

I added in Patrick's Simple Output Instrument.vit another waveform and connected it to one more terminal added. The project builds and the new instrument adds to Multisim just fine.

The thing is that only one waveform is "working" while the other one (another output) is always zero in multisim. Though both are non-zero in correspondance with front panel.

How to make one more waveform "work"?

LabVIEW 2012

Multisim 12.0

[Tien_P]

Hi JungleBoy,

If you modified LabVIEW code from Pat's example, can you post your code?

[JungleBoy]

Hi, Tien.

Give me couple of days. I will post the code.

Thanks!

[JungleBoy]

Here they are (what is modified):

[_user32]

For the waveforms you need to combine into a single (1D) array of waveforms (wfm data) sine will be at index 0 and cosine will be at index 1. If you split and display that is fine but they need to be combined into the cluster for Multisim to process.

All the other VIs appear fine. Please try and let us know the result.

Regards,
Pat N

[JungleBoy]

Thanks!

You mean here one more waveform to combine?

[_user32]

Yes - see below...

You combine single element wfms into a 1D array (if you have 3, you'd combine 3 and so on).   This gets placed into the 'wfm data' element of the communication cluster and the cluster gets sent to Multisim via the Notifier VI.

         

Regards,

Pat N

[JungleBoy]

Thanks! Will try it out ASAP and report the result.

[JungleBoy]

Did that.

Still, NO signal on the second wire.

What's to be changed?

[JungleBoy]

Anyone?