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Re: How To Build exe for Previous Versions

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Telasdist wrote:

Hi Matthew, I am sorry that if I have brought back the topic again after few years later.

Do you have any step by step instruction on how to install multiple versions of RTE into PC?

I have newer versions (2017) installed previously. I tried to install older version (2013) but the installation summary always tell me that "cannot install NI LabView Run-Time Engine 2013 because higher version already installed". 

 


Could it be that 2013 is already installed, but in a slightly newer patch level? What happens if you try to tun the 2013 executable? From where did you download the 2013 run time engine?


Re: Run more than one asynchronous Vi in subpanels

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What Ben is getting at is that you are trying to run the same instance of the VI 3 times.  You need to open 3 difference instances of the VI to run them in parallel.

Re: Problem Moving PPLs to LV2017

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OK, I was feeling good about having everything on the MY COMPUTER side compile up to the host itself.

But the host itself is a disaster.

 

Is LV2017 really the unmitigated dog it appears to be?

Either I'm misunderstanding something very basic, or LabVIEW is flat out lying to me.

For example, while loading, it failed to find something, which was located in exactly the same place it's always been.  When I pointed out where it was, exactly where it was expecting it, I get this:

 

le:Crap1.png

 

LV just built this PPL not two minutes earlier, but now it's unreadable ? ? ?

WHY?

 

But that's a lie, because if I wade thru the loading process and then go and find the error, where it's missing, I can replace it from that exact same place, and it's OK. the library IS readable!

 

I gave up at 120 of those things.  Why do I have to go and find them when the VI told you where they were and they're still there? ? ?

 

If you ignore everything and start replacing the "missing" things, here is a dialog .

Note that the library it complained about above is perfectly readable.

Also note that it is looking for something in exactly the place where it is, but cannot find it .

Crap2.png

 

Most (all?) of these errors are in two PPLs, both compiled under the RT part of the project.  I suspect that if I go and compile them under the MY COMPUTER, things will clear up.

 

I understand if I did something wrong, or if things changed that my project might not work anymore, LV should tell me what the problem is, and I'm fine.

 

But why tell me it cannot find something, when it actually shows me where it is?

Why tell me something is broken when you it was just built a moment ago?

 

Arrrgh

Re: How To Build exe for Previous Versions

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I just get my new PC from company.

So, I installed directly to latest version (2017).

I got RTE image disk in my old PC which is in 2013 and I try to install over here.

Is it not a proper way on doing this?

Re: Run more than one asynchronous Vi in subpanels

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Thanks, been a looong day! Seems so obvious now

 

Also need to remember to close the reference, running this continuously opened a lot of vi's... a lot

Conversion of Dynamic data to waveform double

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I am trying to calculate HIlbert transform of a of filtered system.The problem I am facing is conversion of Dynamic data to waveform double. I have attached a VI that shows the broken wire. Please someone help me fixing the problem.

Re: USRP B210 BPS modulation and demodulation BER problem

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There's really not any significant change in the code. Open up the PSK Tx example, and look at the Frame Size indicator. Then open up the PSK Rx example, and look at the Number of Samples input for the two Rx Fetch calls. By default they get fed a value calculated based on the IQ rate and duration, but just replace that with a constant that matches what's coming from the Tx example. 

 

I also don't think we have any examples for power delay profile measurements, especially not with the USRP driver. That seems like a non-trivial application that wouldn't really be able to be implemented in a one-size-fits-all example.

Re: Producer/consumer third loop stop problem

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You may have a race condition.

 

You are checking the status of your queue and then dequeuing the element in the middle loop. If that dequeue happens before the status is read in the lower loop, you have lost your message.

 

There are other things that could be improved in the picture you sent

1.) Not sure why in the second loop you just don't wire the dequeue item directly to the case structure.

2.) If you have a stop case, you do not need a local variable, just wire a true to stop.

3.) The exit LabVIEW vi is bad news. Do not use.

 

mcduff


Re: Help: Model predictive control with references

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Hi shami_jadoon,

 

Thanks for posting a new thread for this question! Not only will it make the post more searchable, you are also likely to see higher traffic on new posts. It looks like Matt is helping you out for the time being, but I'll chip in as well if I have anything to add.

Re: Subpanels and popup question (labview 7.0)

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thanks for the advices. I am downloading labview 2017 and see if I can run the vi you sent.

I cant see the labels of the invoke nodes so I don't know what it is.

 

Re: Pass listbox NAMES to subVI

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Use the ItemNames Property.

 

mcduff

snip.png

 

 

 

 

C-Series relay module..sending digital signal

Re: Subpanels and popup question (labview 7.0)

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Capture.PNG

 

I am not too sure if its possible to do so in labview 7.0

I am going to play with it and see.

Re: Pass listbox NAMES to subVI

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Do you have to unbundle then bundle each element in the cluster then pass that to the subVI?

 

Thanks.

IMAQ Write Image And Vision Info File 2 not saving overlay information

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Hello Smart People,

 

I have modified the Optical Flow Feature Tracking Example VI to track the white lines in the attached images. I uploaded three, but the series will actually have 100+ images. We would like to track 6-10 points in the image depending on the experiment. Note: You have to pick points, not rectangles or anything else to construct the ROI. Also, the program only runs if you download the original example VI.

 

My main problem is that the IMAQ Write Image And Vision Info File 2 is not saving the overlay information that shows the point tracking for the images. Right now the program is set to record just the last image. I will modify it to save all the images when I figure out how to include the overlay information.

 

It would also be super awesome if the program could:

 

1. Let you select all the points at the same time. I.e. pick Point 1, click o.k., pick Point 2 click o.k., etc... and when complete all the chosen points would be visible at the same time. Then one final o.k. to run the program. 

 

2. Let you have the option to be able to confirm the location of, or re-position, the points in each frame.

 

3. We only need Point, Zoom, and Pan from the Tools drop down, but it doesn't want to save them as defaults.

 

These are indicated with red text on the Front Panel/Block Diagram. 

 

Thank you for being you!

bentaztick


Re: Pass listbox NAMES to subVI

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The names come out as an array of strings.

 

You can pass the array directly into your subVI, or you can pass a reference from the listbox to your subVI and use the property ItemNames in the subVI.

Snap8.png

 

 

Snap9.png

 

 

 

Maybe you can better explain what you want. A listbox may not be the correct control, maybe just use an array instead.

 

mcduff

 

mcduff

Re: Extremely small cursors on both the front panel and the block diagram

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Hi,

 

I am running LV7.1.1 on Windows 10. About 1 week ago, I had this happen also. I have ignored it for the most part, but is extremely annoying.  I believe the night before this occurred, windows 10 performed one it's many automatic - without permission - and without any say in the matter, updates. I am using a 3840x2160 display.

 

I will attach a screenshot of the cursor. If anyone has a solution - I would be interested in hearing.

 

Kind regards,

Kane.

 

Edit: the image had a transparent background making it hard to read text. Also, I just noticed MS Word showing the same issue. So this is not isolated to LabVIEW. I have run several other apps, but have not seen this anywhere else yet.

Re: fuzzy logic - Labview

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So how to transfer my fuzzy logic file/data path from my pc drive to sbrio? 

Please tell me sir, Smiley Happy

 

Re: Elevated Console, MKLink Issues

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Hi Hooovahh,

 

This is definitely a strange behavior and it may be specific to the Operating System being used.  

 

I have also been able to identify this discussion on a similar topic, but it does not appear that there have been any updates to the specific LabVIEW functionality described, as that would likely be included on the page.

 

Moving forward, the following information could help identify the source of the problem.  

1. What OS/LabVIEW versions has this worked with before? 

2. Which version of LabVIEW are you using? Any specifics may help me narrow in on the source of the issue.

 

I look forward to hearing any updates as well.

 

-cblanchard

Applications Engineering 

National Instruments

Re: How To Build exe for Previous Versions

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I didn't know that the MAX able to view the software that I've installed.

I installed everything. It is long list, I am just capturing part of it. [see attached]

I have all the runtime installed in my PC.

 

Then, how can I create executable for previous version?

The message it popped out after I try the executable on old version of RTE:

"Unable to locate the LabView Run-Time Engine.

Application.exe requires a version 2017 (or compatible) LabVIEW Run-Time Engine."

 

 

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