Use of FindLstn in Labview

Similar Questions

• use IMAQdx functions in Labview Communications System Design Suite

  Hello

  I would like to read an image and use the bytes obtained to perform certain functions. Currently, the system has Labview Communications System Design Suite (2014 SP1)

  and vision acquisition software installed. I don't know how to use IMAQdx features in labview.  Can anyone help?

  Thank you!

  I do not work with the Design Suite of Labview Communications System.

  In LAbVIEW, however, when after you install LabVIEW first, then the Vision Acquisition, you can use the example Finder locate IMAQ or IMAQdx for LabVIEW examples: in LabVIEW, select help > find examples. This will open the Finder of the example. On the "Search" page, type the keyword "IMAQ" or "IMAQdx" (depending on your device) and look at the examples that come with the Acquisition of the Vision for LabVIEW.

• float to bytes conversion using c code in labview

  Mr President, I made the taste of the float to bytes conversion using type cast in labview. now I want that conversion using the code c. means I want to know that how labview can suport code c. farmula node is not suporting my code which is working wel in labwindows. kindly help me on this subject so that my skil can be improved using labview

  The node of the formula as its name suggests is to facilitate the access of the algebraic formulas in text form and uses a C like syntax, but is in no way a fully featured parser/compiler. It supports only a subset of the syntax of C for obvious reasons. Why would you need to implement entire code C in LabVIEW for LabVIEW program supports the same functions and to do it with LabVIEW nodes, you will always have better performance you can get in the formula node.

  If you have real C code you wish to call in LabVIEW you use the node form but create a DLL from it and call it via the node library call.

• Use of Matlab in Labview script

  Hello

  I am using matlab script in labview to post process the signals sampled data acquisition (attached is the vi I tried)

  After every 10 seconds I want to send it the voltage sampling data matlab scritp block that makes 1) detection of peaks using the peakdetection function and the peaks obtained on the sampled signal plots 2) standard of 10 dry data and locations on the chart calculates.

  But I'm confused 1) how to call the peakdetection function in the matlabscript block

  (2) how to send data 10secs of the values of voltage and time for the matlab script block

  (3) how trace signal peaks and detected on the same plot (which can be done in matlab help one, as shown in the attached vi).

  Can anyone suggest to implement these.

  Thank you.

  Hi GovRi,

  I just incorporated peakdet the script node, and it works for me. Go ahead and try again. Also, I did try it a first stab at acquiring data call. The Matlab window should open as soon as you open the vi, if it's not there is a problem with the Matlab COM connection.

  Good luck!

• Use VirtualBench API without LabVIEW. Example: Python, dll, etc.

  Hello

  I would like to know if there is a way to use the API VirtualBench without LabVIEW?

  As the use of python or something.

  Thank you

  We just released version 1.1 of VirtualBench that adds a C API and a bunch of other features, see http://forums.ni.com/t5/VirtualBench/Announcing-free-firmware-update-version-1-1-adds-SPI-and-I2C/td....  With whom you could use VirtualBench in your programming language of choice if you write the appropriate links.

• Source a current Sine using USRP N210 with Labview

  Hello

  I use USRP N210 with boards LFTX/RX for communication (electromagnetic Induction) cable and programming using LabVIEW and downloaded the drivers. I need to order the USRP to send a signal sine of 1 MHz through the barbed wire. I used the "Sine simulation block", but I'm not sure the block to which it must be connected to. Please let me know the steps or the blocks/screws that can be useful.

  Thank you.

  Hi Julie,.

  I think you need to use the open niusrp and log screw

  You don't need to use the configuration VI signal because I think that you can not set the frequency of the carrier on the Remora LFTX and LFRX.

  I think you can use the sinus blocks of generation as shown in the picture as an attachment.

  Thank you.

• How to use extern Code in LabView / cRio

  Hi guys,.

  After that I had created a Matlab/Simulink model, I use the model Interface Toolkit to generate a library of VxWorks file (.out) because I want to import this model on a cRio-9024. So I copy the library of VxWorks for the cRio (/ nor-rt/system /).

  However, how do I open the file in LabView now, so that I can use the features in the model?

  I hope someone can help me.

  Thank you

  Nator

  I'm sorry, my fault.
  I used the wrong path for the VxWorks library file.

• Failed to retrieve the DIAdem DataFinder research data, using data-finder toolkit LabVIEW 2009

  I am facing problem to retrieve the DIAdem Datafinder data.

  At first, I developed this project in LabVIEW 2010. But because of a problem that I met in LabVIEW 2010, I thougth to work on the project in LabVIEW 2009.

  Then, I reused the project that I created using LV 2010 using option economy for the previous version.

  When I tried to retrieve the data from the tiara using data finder toolkit. I got a 305505 warning. Please see the attached message of Warninig.

  But I have not seen this warning while I was working in LabVIEW 2010 and also, I was able to get the data from the tiara.

  Please suggest me a way to solve this problem.

  Hi Nanda,
  There is a bug when using the SDK use in combination with DataFinder Toolkit 2009.
  This bug is already fixed in LabVIEW 2010 and use SDK 2010. But as you said there is another question in LabVIEW 2010, forcing you to LV 2009.
  I suggest you use LabVIEW 2009 with use SDK 2009 and DataFinder Toolkit 2009 and instead to use the "Waveform.vi results" to read the search results, I would recommend to use the screw storage. I spread your example VI and it attached to this message. You will still see the dialog box to search for "lvStorage.dll" but it will automatically disappear and the VI works anyway because in this case LabVIEW will find the dll itself.
  My extended VI uses the '_openWithRoot.vi' to open a file with a different use than CT or PDM. This VI is also described in the following knowledge base article: http://zone.ni.com/devzone/cda/epd/p/id/4181
  With LabVIEW 2010 use support has been enhanced and fully integrated in the standard palette of storage screws. So in LabVIEW 2010, you can replace the "_openWithRoot.vi" with the 'Open Data Storage.vi' standard but with LabVIEW 2010, you can also use "Waveforms.vi results" to read the search results.

  I hope this helps.

  Kind regards
  Eva

• By the way the USE of TestStand to LabVIEW serial number

  Hello. I'm really new to using TestStand and I am trying to send the serial number of the object to be measured to a LabView vi. I tried to use Runstate.Root.Locals.UUT.SerialNumber as the value to pass, but it did not work. It seemed not unlike object to measure. Any suggestions would be helpful. Thanks in advance.

  It will show in reading and give a warning of the assessment, but it should work at run time.

• used in a Subvi LabVIEW property node

  I have a group of Boolean control front, I want to minipulate the visibility and color (4) in a Subvi.  I created a Boolean refnum cluster and spent by them in VI.  In VI, I created a group of CTLRefnum that I used as entrance pole.  In the Subvi, I am able to control the visibility through the time property node, but the Color property node (4) does not appear as a selection in the Sub - VI.  Any ideas on how I could control the colors in a Subvi.

  Hello HEJ@WR,

  Looks like you may have thrown your refnums Boolean to more generic control refnums - as the Color property is specific to Boolean values, you will need to ensure that you are now the reference type.  Visibility is a property more generic that applies to all types of controls. Refer to this article for more information on casting refnums:

  LabVIEW Help: For more specific class function

  http://zone.NI.com/reference/en-XX/help/371361H-01/Glang/to_more_specific_class/

  LabVIEWWiki also has a very good discussion of types refnum and properties specific to the class here:

  LabVIEWWiki: Control references

  http://labviewwiki.org/Control_References

  Also - if you set the example code showing what you're trying to do is much easier for other users of the forum help!

  Kind regards

• using OpenCV FileStorage in LabVIEW

  I would use the LabVIEW function of the OpenCV FileStorage. Mainly because I want to transfer a c++ project to a LabVIEW project.

  But in this case, I can't load the xml file.

  I tested it in a project consolo, it seems to work.

  Here is the code:

  #include
  #include

  using namespace std;
  use of names cv;

  class MyClass {}
  public:
  FileStorage f;
  Temp of mast;
  int loadfile() {}
  f.Open("C:\\Users\\Silva\\Documents\\results\\text.xml",filestorage::Read);
  If (! f.isOpened ())
  Returns - 1;
  f ['count'] > temp;
  return 0;
  };
  };

  MyClass temp;

  extern "C" {}
  __declspec(dllexport) int loadfile();
  }

  __declspec(dllexport) int loadfile() {}
  error_code int;
  Error_code = temp.loadfile ();
  if(Error_code!=-1)
  return 0;
  Returns - 1;
  }

  
  

• To the installation of custom (my) Labview drivers created using system driver instruments LabView 8.2

  I spent the day writing a driver for my new general i/o board for LabView using the creator of project pilot such Instrument indicated on the latest LabView tutorials. It works fine on my computer, even incorporated in the Panel 'Instrument i/o' on the toolbar. Really great.

  But! This must obviously be something that I can publish on a Web site or email to people for them to install on * their * computers! I tried to use the configuration settings as described in another tutorial in order to produce a zip file, a source folder and a Setup program. However, none of these export options seems to produce a labview library that can be opened without nasty error message on the files being found. Of course, the files are present in the directory, but it is looking for them in the * original * folder instead of either the file installation or a folder in a directory from the file to the library. It's really quite absurd, so I guess I'm doing something wrong... but I can't find information on how to do this right. When I followed the instructions I can find, it does not at all.

  What I * should * was that, if I created an installer, when an end user with LabView installed ran the installer it would integrate the new Instrument of e/s vi in their panel of LabView. But this does not happen. In addition, when you look in the installation directory (by default not the LabView directory), but a directory in Program Files/driver-name all the files are there. But if you open the library in the directory of the Volume, he complains about the vi being in the wrong place, then load them in the wrong place.

  It seems clear that the behavior of the installer must be to put the appropriate files in the location where LabView research instrument drivers. That is not that this disturbs the bajeezus out of me. Can someone explain me or give me a link to the instructions how to accomplish this feat apparently obviously necessary? I can possibly download my driver to the network NOR, but I want to at least test it out first!

  I've attached a zip file of the installation directory, which I do not understand in the runtime environment for reasons of size. I've also attached a zip file of the original directory. It won't work unless that place in the correct location in the folder of LabView. He probably has an older version of I've been using the build options.

  I think I got this figured out, maybe, others may use the solution.

  On the "Source Files" category in the specifications of construction for an installer, [LVDIR] represents the LabView installation directory. So, if you create the directory instr.lib under [LVDIR], you are installing in the root directory of the instr.lib. Then, create another folder named identically in your project source directory (so that it can find the files) and mark in the installation directory. On the side of the project view, open 'My computer', choose your lvlib on the left and your installation on the right directory and click on the right arrow between the two panes. This will create an installation directory structure in the correct location on the target.

• Using ComponentOne c1chart with Labview

  Someone of experience using the C1Chart (or a 3-d chart) of ComponentOne with LabView?  Background: we have a c# dll that contains a control to the user with a C1Chart placed on it and a lot of wrapper code to make the C1Chart data color of LAB plot.  We create this dll and then use it in LabView.  We place our LABORATORY chart in a container .net in Labview.  Here's the problem with the C1Chart version

  2.0.20091.19053 it worked great and when we went to version 2.0.20092.19168, that today ' today, we get the horse C1 screen, saying: we use a C1Chart evaluation version when we run the vi.

  Any thoughts? I use version 8.6

  A component has corrected this problem and it will be integrated in the version official 2010v1.  In the meantime if you need solution you ask the C1 for the middle generation 2.0.20093.19356 or higher.

  Also, here's their describtion of the question. Perhaps NEITHER can reivew to see if there are effects for LabView.

  * License code passed under 19053 at 19152.

  * An old license code class (C1. Win.ProviderInfo) LicenseProvider puffiness. The new
  code doesn't have any class that inherits from LicenseProvider. In addition, the
  LicenseProviderAttribute() does not specify a license provider.

  * The only way that the MS IDE might find there is a license, and what is the license would
  because our controls call LicenseContext.SetSavedLicenseKey (). Apparently this is not enough for LabView. He must
  be looking for the System.ComponentModel.LicenseProvider () and using the virtual memory LicenseProvider.GetLicense)
  obtain the license key.

• How to generate a single pulse using PXI-4461 in Labview

  I need to generate a single positive pulse is 100ms using an OD on the PXI-4461 with DAQmx Labview

  I have trouble getting the exact time of the pulse.

  Help, please.

  Thank you.

  He works, see attached pattern obtained.

  Thanks to NI Applications Engineer ally Finney for example.

• Problem with the configuration to use Silver Style with labview 2011 (32-bit)

  Hi my friends.

  I installed labview 2011 32 bits. I select money style my default control style. but when I create the new VI, labview creates no controls in the silver model

  the controls are created in modern style.

  can someone help me solve this problem?

  with all my thanks: Saeid

  If you're down by controls via the palette, then it will drop any type palette you are in.  You are most likely in the range of modern control.  The setting that you are talking about is when you create a command or the indicator by right-clicking on a primitive terminal.