How matlab function is work in labview

hi all
i have implenet a function say
function [op]=myimplement(ip) in Matlab
& i have used it in simulink as Matlab function
as i have attached the both matlab file name & also Simulink file
i want to convert the matlab function int Labview
i have tried by using Matlab script node
but its is not working ??
so where iam doing any mistake??
iam also attaching Labview file as well name funct.vi
waiting for any kind replay
thnaks
Attachments:
prog.zip ‏10 KB
funct.vi ‏13 KB

As it is the Matlab node can't really do anything with that. It would be no different than if you have a .m file. You need to call the function. The Matlab node does not do that automatically (and neither does the Matlab editor). Of course, it's probably simpler to just remove the "function" line and have the last line changed to say
uk=[x_ukp1;x_ykp1;x_zkp1;thetakp1(];
instead of
op=[x_ukp1;x_ykp1;x_zkp1;thetakp1(];
Note: I believe your input variable should be "ip", not "n", since you calculate "n" in the script.

Similar Messages

  • How user define matlab function will work in labview

    Hi all
    iam trying to implenet the matlab function which i have wrote in Matlab 7.9(R2009b)
     function [ op ] = myimplement( ip )
     the file is attached below
    i want to use  matlab function in labview ,i have tried Matlab script node but few of function define in matlab function are not working properly
    so is any alternative way to implement matlab function in labview environment to implement my algorithm & getting same results
    thnaks
    waiting for kind reply
    iam trying from many days but not geting any results
    Attachments:
    myimplement.zip ‏2 KB

    Hi smercurio_fc nd sry if u mind my double post actually iamin last month of my post graduate research so i want to complete it urgently
    iam attaching detail file what iam facing?/
    same thing iam doing in Matlab & getting result but while doing in Labview by using Matlab script node not getting
    error 1048 is occured
    iam attaching word file kindly help me out regarding that problem
    i will be thankfull for u
    tc
    Attachments:
    my matlab function.docx ‏134 KB
    my matlab function.doc ‏154 KB

  • How this Function will work

    Hi,
    Below these are my variables
    Circ
    Circle
    Circumference
    radius
    Area
    and now i want to know what is this below  syntax means. i mean to ask below they r using " =>" how this function will work exactly plz can anyone explain me ,it will be great helpful to me.
    circ = circle=>circumference( radius ).
    area = circle=>area( radius ).

    Hi,
    It is a <b>Class Component Selector</b>.
    The label  <b>class=>comp</b> can be used to access a static component comp of a class without an instance of the class having to be created. The character => is the class component selector. The label class of a class must be to the left of the class component selector. The name comp of the component must be to the right of the object component selector.
    The class component selector can also be used to access the data types and constants of an interface.
    ifac=>type, ifac=>const
    The label ifac of an interface must be to the left of the class component sector. The name type of a data type defined with TYPES or a constant defined with CONSTANTS must be to the right of the object component selector.
    <b>Note</b>
    It is also possible to access the static components of a class using the object component selector if an instance of the class was created.
    <b>Example</b>
    Declaration of a class factory and access to its static attribute oref.
    CLASS factory DEFINITION CREATE PRIVATE.
      PUBLIC SECTION.
        CLASS-DATA oref TYPE REF TO factory.
        CLASS-METHODS class_constructor.
        METHODS do_something.
    ENDCLASS.
    CLASS factory IMPLEMENTATION.
      METHOD class_constructor.
        CREATE OBJECT oref.
      ENDMETHOD.
      METHOD do_something.
      ENDMETHOD.
    ENDCLASS.
    factory=>oref->do_something( ).
    Regards,
    Padmam.

  • Need instructions on how to get Quanser working with LabView 7.1

    I need information on what LabView modules or addins to install in order to run Quanser (QNET Experiments release 2.2).  LabView 7.1 is loaded but we also have LabView 7.0 if needed.

    Hello JND,
    The Quanser website indicates that the QNET products are fully
    compatible with LabVIEW and NI Elvis. However, I could not find more
    information on any drivers they provide for LabVIEW, so I suggest you
    contact them directly about this. If they have drivers written for
    LabVIEW, that should be enough to communicate with the board from
    LabVIEW. In order to communicate to NI Elvis, you need to install
    NI-DAQmx and NI ELVIS drivers available at this page.
    Good luck and best regards,
    Shakhina P.
    Applications Engineer
    National Instruments

  • Accessing Matlab functions

    Is it possible to access Matlab functions (m-files) in Labview.
    Is there a dll that fixes the problem?
    I don't know how to calculate feedback gains using the lqr-algorithm and
    kalman and that sort of stuff...
    Thanks
    Toon

    Under LabVIEW 5.1 and higher, there are a number of excellent additional
    Mathematics functions built into the palette, including a Matlab script formula
    node. If you've got LabVIEW 5.1 under 32-bit Windows, you can simply pop one of
    these nodes down on your diagram, right-click it to import your m-file, and
    you're all set.
    Depending on your OS and your versions of LabVIEW and Matlab, there will
    probably be additional possible ways to communicate between the two
    applications, but if you're doing a lot of Matlab integration, LabVIEW 5.1 is a
    good investment.
    Regards,
    John Lum
    National Instruments
    Toine wrote:
    > Is it possible to access Matlab functions (m-files) in Labview.
    > Is there a dll that fixes the problem?
    >
    > I don't know how to calculate feedback ga
    ins using the lqr-algorithm and
    > kalman and that sort of stuff...
    >
    > Thanks
    >
    > Toon

  • Problem making a C++ DLL in Visual Studio 2010 work in LabView

    Hello, I've noticed that I cannot do ' extern "C" ' on the methods Open(), Close(), StartStreaming(), and StopStreaming() in the following Class:
    class ApplicationIo : public FiclIo
        friend class X5ScriptPlayer;
        friend class ApplicationSettings;
        typedef std::vector<__int64>    IntArray;
    public:
        //  Member Functions
        ApplicationIo(IUserInterface * ui);
        ~ApplicationIo();
        ModuleIo &  ModIo()
            {  return Module;  }
        unsigned int BoardCount();
        void Open();
        bool IsOpen()
            {  return Opened;  }
        void Close();
        void StartStreaming();
        void StopStreaming();
    How can I export the methods of the Class mentioned above? I've read the manuals and seen examples about how to get DLLs working in LabView, however none of them ever talk about when there is an actual Class involved and exporting the methods of said Class.
    Any help would be greatly appreciated.

    Okay, well at least that clears up one piece of the puzzle.
    Here is the wrapper I need:
    Here's the .h of the wrapper:
    #ifndef _APPIO_DLL_WRAPPER_H_
    #define _APPIO_DLL_WRAPPER_H_
    #define DLLEXPORT __declspec (dllexport)
    #ifdef __cplusplus
    extern "C" {
    #endif
    typedef struct ApplicationIo ApplicationIo; /* make the class opaque to the wrapper */
    DLLEXPORT ApplicationIo* Construct_AppIo(IUserInterface* ui);
    DLLEXPORT void Destruct_AppIo(ApplicationIo* LV_Ref);
    DLLEXPORT void Open(ApplicationIo* LV_Ref);
    DLLEXPORT void Close(ApplicationIo* LV_Ref);
    DLLEXPORT void StartStreaming(ApplicationIo* LV_Ref);
    DLLEXPORT void StopStreaming(ApplicationIo* LV_Ref);
    #ifdef __cplusplus
    #endif
    #endif /* _APPIO_DLL_WRAPPER_H_ */
    Here's the .cpp of the wrapper:
    #include "AppIoDll.h"
    #include "ApplicationIo.h"
    ApplicationIo* Construct_AppIo(IUserInterface* ui)
    return new ApplicationIo(ui);
    void Destruct_AppIo(ApplicationIo* LV_Ref)
    LV_Ref->Close();
    delete LV_Ref;
    void Open(ApplicationIo* LV_Ref)
    LV_Ref->Open();
    void Close(ApplicationIo* LV_Ref)
    LV_Ref->Close();
    void StartStreaming(ApplicationIo* LV_Ref)
    LV_Ref->StartStreaming();
    void StopStreaming(ApplicationIo* LV_Ref)
    LV_Ref->StopStreaming();
    The one problem I have with this is how am I supposed to get the pointer to the IUserInterface class to the C Wrapper constructor?

  • How to output data when converting labview vi into matlab mex functions

    Hi,
    I am a fairly new user to labview and am currently working on labview
    7.1. I have created a labview vi which can extract data from ni daq
    6070e in real time. The problem is that this code has to be converted
    so that it can be used with matlab.in order to do that i am using math
    interactive tool kit which converts the labview code into mex files
    which can then be used in matlab. Unfortunately i have not been able to
    figure out how to output this data so that it can be processed in
    matlab easily. i cannot afford any loss of information and all the
    output must happen in real time. the o/p must take place after the fft
    has been done. i am attaching the vi for convenience.There are 10
    broken wires ,and this is the place where i want the o/p to be
    generated.
    Also do let me know if this vi can be further improved.
    Regards
    Attachments:
    RT_loop2ver4_working.zip ‏642 KB

    Manuj,
    You seem to have misunderstood the way in which LabVIEW processes data.  The code that you have produced will run in exactly the same way without the need for the case structure.
    The code does not actually run the data from the previous case. It is merely processing data from the previous loop iteration, regardless of the case. If you were to remove the case structure, leaving only one copy of the code intact, and remove the toggle switch you have produced, or used the shift register which, I assure you would have worked, then you will have exactly the same functionality.
    I have attached an example that uses the shift register to toggle cases, but also iterates that the case structure is not needed by using the same feedback node (and code) without a toggle switch or case structure.
    Hope this helps you optimize your code
    Regards
    AdamB
    Applications Engineer
    National Instruments UK
    Applications Engineering Team Leader | National Instruments | UK & Ireland
    Attachments:
    CASE_NO-CASE_Example.vi ‏24 KB

  • How to use matlab function with labview?

    Hello,
    I just want to use some matlab functions like floor(),ones()... in my labview code, who can tell me how to do it?
     I want to only install MCR in my PC, so MATLAB script node can not work because it need matlab installed. 
    Thanks
    Solved!
    Go to Solution.

    floor() exists on the standard labview pallet already and the ones() function would be fairly simple to reproduce. If you only need a few basic functions repost asking for direction on recreating those specific methods. However, you're right - there is not a direct way to use compiled matlab code in labview without full matlab and the math script nodes. If you're really desparate to reuse some some exisiting IP there are C++ alternatives that implement many of the same methods and syntax as matlab (http://arma.sourceforge.net/faq.html). I'm fairly sure there are other tools that attempt to translate matlab code into pure c functions, both of which can be called via a DLL from within labview: https://decibel.ni.com/content/docs/DOC-9076
    Alternatively, here is an all NI linear algebra solution: http://sine.ni.com/nips/cds/view/p/lang/en/nid/210525

  • How do I troubleshoot installation/distribution of a LabVIEW .exe which processes data using Matlab when it works on some computers but not others?

    I've been given the unenviable task of troubleshooting and installing/distributing software written by a former co-worker. I've modified the LabVIEW code and built an .exe file. I've successfully installed the Labview .exe file on several computers, but it won't work on some others. What's more baffling is that I installed it successfully on one computer, uninstalled it, and tried reinstalling it with no success. In fact, it's a new error (Dr. Watson for Windows NT application error). It doesn't help that I have different versions of LabVIEW and Matlab on the target computers. Some have LabVIEW 5.1, some
    have 5.0, and some don't have it at all. Some have Matlab 5.2, some have 5.3 (R11) and some have 6.0 (R12). It's also not clear to me where the Matlab m files should be located. I'm not sure if it's a LabVIEW Runtime Engine problem, or if it's a Matlab problem. I've also wondered how LabVIEW and Matlab talk to each other. When LabVIEW calls Matlab, it seems that Matlab is running in the background. In other words, clicking on the Matlab Command Window and typing "whos" or any other command/variable doesn't work.

    Jay del Rosario wrote:
    >
    > How do I troubleshoot installation/distribution of a LabVIEW .exe
    > which processes data using Matlab when it works on some computers but
    > not others?
    Poke around zone.ni.com and
    http://digital.natinst.com/public.nsf/$$Search/ .
    Good luck, Mark

  • Mathscript all matlab functions are not working

    Hello,
                 I am using mathscript node in my labview development. I have used right away "imfill" function to fill the holes in my edge detected image. But the "imfill" function is not working in mathscript.
    How could I use this function in mathscript?
    Attachments:
    Candel.vi ‏96 KB

    Did you take this code directly from MATLAB and put it in the MathScript node? (I'm guessing the imfill function is a MATLAB function?)
    If so, you're going to be sorely dissapointed.  While MATLAB and the MathScript node both use .m files, they are not the same language.  The language is very similar, but the syntax differs slightly in some cases.  My guess (since I've used MATLAB but never the imfill function) is that the imfill function is part of a toolkit for MATLAB.  Unless the MathScript node has a corresponding function (you'd have to search the help to see) you will not be able to use this function in the MathScript node.
    If the MathScript node has no corresponding function and you must use this function in LabVIEW, I would reccommend the MATLAB Script Node.  This structure actually calls MATLAB through the ActiveX interface.  This means that you must have MATLAB installed on the computer you are running your VI on.
    Chris
    Certified LabVIEW Architect
    Certified TestStand Architect

  • Problems of integrating Matlab functions in Labview

    Hi,
    Does anyone know how to completely integrate Matlab functions into Labview program without a copy of Matlab in the system when I run the entire program?
    Initially I used 'Mathscrip' node but I heard that it doesn't support Matlab toolbox.  Thus, I tried out the other option 'Matlab script' node. This node works well in implementing Matlab functions but it indeed requires Matlab installed in the system. 
    So in other words, how could I realize the full integration(as what Matlab script node achieves.)  without Matlab installed in the system?   
    Cheers,
    Nicholas 

    hi smercurio,
    So you mean that the Matlab script is no longer necessary in my case right?
    Could I just ask my colleague to compile his codes to matlab dll and I use the Call Library Function Node  instead of Matlab script to call it?
    About MCR, is it the correct source at the following link  http://www.mathworks.com/matlabcentral/fileexchange/5268 ?
    Sorry for those basic queries in Matlab as I have very little experience in it. lol... thanks a lot.
    Cheers,
    Nicholas 

  • How to generate and use Matlab(R2007) .dll's in Labview

    Is there a step-by-step example on how to generate and use Matlab(R2007)  .dll's in Labview.
    Our experimenal hardware is LabView-controlled and we want to pass
    images/2d intensity arrays to a more complex matlab program that will
    return an array of extracted data which we want to use in LabView again.
    Thank you
    Carsten

    I recommend having a wrapper created around the matlab dll that converts the datatypes for you. There is a lot of fooling around with pointers involved which is very difficult in LabVIEW. btw, this got much more complicated after Matlab 7. Essentially, you need to convert your inputs into mxArrays, and then add those mxArrays to an mxArray list that you pass by pointer into the matlab dll. You also need to create a mxArray list for the outputs from the dll which you will need to extract your data out of before converting it back into a LabVIEW supported datatype. It's a big hassle. We do this pretty often, but we have created a c library that handles all the conversions, so it is feasible for us. Unfortunately, I can't share the library, but hopefully this information will help you get where you want to be.
    Like I said, it would be easier if you can just get a c developer to write a wrapper for you to keep it simple in LabVIEW. Alternatively, you might try getting your m-code to work in Mathscript.
    Chris

  • I have powerpoint for Mac on my imac.  I can't seem to get the active text box function to work like it did on my PC.  How can I insert an active textbox into a presentation that will allow me to type while presenting?

    I have powerpoint for Mac on my imac.  I can't seem to get the active text box function to work like it did on my PC.  How can I insert an active textbox into a presentation that will allow me to type while presenting?

    I've gotten a little further on this. The dynamic select is
    working fine. It's the "a href" code that isn't. I'm wondering if
    someone can look at this line and tell me if it's okay to build the
    query string this way. The storeid comes through fine but I'm still
    not getting the employeeid value to pass. Here's line that's not
    working:
    td><a href="registerStoreCust.php?storeid=<?php echo
    $row_storeRS['storeid']; echo "&employeeid="; echo
    $_GET['employeeLM']; ?>">Register
    Customer</a></td>

  • The message function on my Ipad just quit working.  I was using it while in Mexico and it just quit.  I have come home and synced my Ipad with Itunes and function still does not work.  How do I get this function to work again?

    The message function on my Ipad just quit working.  I was using it while in Mexico and it just quit.  I have come home and synced my Ipad with Itunes and function still does not work.  How do I get this function to work again?

    When I use find file http://www.macupdate.com/app/mac/30073/find-file (which does tend to find files that "Finder" can't), it's not coming up with any other itunes library files that have been modified in the past week, which I know it would have been - unfortunately, I don't have a very recent backup of the hard drive.  It would be a few months old so it wouldn't have the complete library on it....any ideas?  I'm wondering if restarting the computer might help but have been afraid to do so in case it would make it harder to recover anything...I was looking at this thread https://discussions.apple.com/thread/4211589?start=0&tstart=0 in the hopes that it might have a helpful suggestion but it's definitely a different scenario.

  • How do I get the tint function to work in CS5?

    I rrecently installed CS5 In Design in Windows 7.  How do I get the tint function to work?

    This is how you create a tint:
    If it's not working, you might try restoring your InDesign preferences:
    Trash, Replace, Reset, or Restore the application Preferences

Maybe you are looking for