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Multiple picoscope Labview Application

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Multiple picoscope Labview Application

Postby wenfeizhang » Fri Feb 06, 2015 8:50 pm

Dear all,

I am trying to use 3 picoscope 5442B with Labview to collect 12 channels of data at the same time. I am using streaming mode. At first, I can run the single-picoscope in my program very well. However, When I copied another call function in the labview, I get all 0 values from the second picoscope, while the first one works fine. It is not a hardware problem. The single-picoscope labview program works fine on each picos separately. Can anyone look into my code and see anything wrong? Thank you very much.
Attachments
Multipahse needle probe test.vi
(69.04 KiB) Downloaded 42 times
wenfeizhang
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Re: Multiple picoscope Labview Application

Postby Karunen » Mon Feb 09, 2015 4:11 pm

Hi,

What happened is the wrapper can only handle one device so that when try to get values to does not copy it into a local space.

To stream on multiple device first you need to copy and paste the "ps5000aWrap.dll".
I just called mine "ps5000aWrap - Copy.dll" (copy and paste default).

Then you need to replicate all VIs that use the wrapper and have one use "ps5000aWrap.dll" and the other use "ps5000aWrap - Copy.dll". Please make sure the VIs have different names otherwise they will overwrite each other.

I have attached your example with these changes
Multipahse needle probe test Folder.zip
LV8.5 version
(306.08 KiB) Downloaded 59 times


EDIT: Sorry about that I have attached the examples as LV8.5

Kind Regards,
Karunen

Technical Specialist
Pico Technology
Karunen
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Re: Multiple picoscope Labview Application

Postby wenfeizhang » Mon Feb 09, 2015 4:17 pm

Thank you so much.

Can you attach a 2013 version rather than a 2014?
wenfeizhang
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Re: Multiple picoscope Labview Application

Postby Karunen » Thu Feb 12, 2015 10:57 am

Hi,

I have reattached the example to my previous post.

Kind Regards,
Karunen

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Pico Technology
Karunen
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