Math interface toolkit

I installed evaluation version of Math interface toolkit to convert VI into Mex functions.
but the toolkit only allows me to make LNX functions, there is not Mex function tab.
I installed the evaluation version...and in the tools menu it says "math interface toolkit for xmath"  which I think is not the toolkit i'm looking for.
 I downloaded it from the link :
http://zone.ni.com/devzone/cda/tut/p/id/2716 
I tried both links on the above page i.e  NI LabVIEW Math Interface Toolkit (MIT)  and NI LabVIEW Math Interface Toolkit. but both install it for xmath and only make LNX function.
where I can get the right toolkit?

What part did you not understand?
Posting the same question, multiple times is just impolite and does not get it answered quicker. You posted this thread 10 minutes after you posted the first question. The majority of the people here are volunteers who take a break from work to help. By marking this post as a duplicate, I made it so people would not waste time responding to both of your posts. Let's keep it to your original. Have a little patience.

Similar Messages

  • How to get input and output using math interface toolkit

    Hi,
    I am fairly new to labview and i am trying to convert my labview code
    into matlab mex files using math interface toolkit. I cant see any
    input or output terminals when i try to convert the code to mex files
    even though my vi has plenty of inputs and outputs that should be
    available during conversion.
    just to cross  check i made another vi in which i inputted an
    array of data to an fft and outputted it to an array again. i tried to
    convert this code to mex files but was still not able to see any input
    or output terminals, which makes me believe that i must be doing
    something wrong at the very basic level and inspite of trying really
    hard for some days now i have not been able to figure out that might be.
    So please help.
    I am attaching the basic vi that i created along with the link that i followed for converting labview code to mex files.
    http://zone.ni.com/devzone/conceptd.nsf/webmain/EEFA8F98491D04C586256E490002F100
    I am using labview 7.1
    Thanks
    Attachments:
    test.vi ‏17 KB

    Yes, you've made a very basic mistake. You have front panel controls and indicators but none of them are connected to the VI's connector pane. right click on the VI's icon and select "Show Connector". You use the wiring tool to select a connection there and then select a control or indicator. Use the on-line help and look up the topic "connector panes". There are some sub-topics on how to assign, confirm, delete, etc.

  • How do i pass a daqmx task from labview to matlab using the math interface toolkit?

    I want to use DAQMX functions from Matlab using the Math Interface Toolkit (MIT). How can I have a labview function output (return) the DAQMX task to matlab via the MIT?
    I want to do this so I can start a DAQMX task in Labview from a matlab function and return control to matlab without losing the task.

    Hi Mark,
    (I already posted this answer in your other thread, but let's keep THIS thread alive - it makes more sense here in the LabVIEW forum than in Instrument Control forum.)
    Since the DAQmx Task is not a native data type that can be passed directly to MATLAB from LAbVIEW, try flattening the DAQmx Task to a string before passing to MATLAB. However, I doubt that you can access the task from within MATLAB, but feel free to give it a try.
    Good luck!
    - Philip Courtois, Thinkbot Solutions

  • Errors when Math Interface Toolkit creates dll

    Dear NI experts.
    When I want to use Labview Math Interface Toolkit  to create a simplest DLL, I got errors(see attachment), I can not get the dll file.
    My vi is just like y=x+1.
    My operating system is : WinXP sp2
    Labview : Professional Development System, Labview 8
    Math Interface Toolkit : don't know the version, just download from NI on 30 June 2006.
    Looking forward of reply soon.
    Many thanks
    Attachments:
    mit errors.jpg ‏20 KB

    Hi Z
    Please make sure that you have version 1.0.2 of the math interface tool kit as version 1 is not fully compatible with LabVIEW 8 you can check what version you have if you got to start>>control panel>> Add Remove programs >>National Instruments>>change look for Math Interface Toolkit XX.
    Here is a link to check what version of the tool kit you need for different versions of LabVIEW
    http://www.ni.com/support/labview/lvtool.htm#math
    I have added a link witch deals with some of errors that might occur while using math scrip it also has some useful additional links at the bottom of the page
    Error When Calling a MEX File Created With the Math Interface Toolkithttp://digital.ni.com/public.nsf/websearch/55708A4​952BDD4A386256E85005720B4
    I hope this helps
    Tim
    Applications Engineer | National Instruments | UK & Ireland

  • Math interface toolkit install

    Hi,
    Please is there any chance to download somewhere a trial of the math interface toolkit?
    I want to use my VIs on matlab as a GUI, and I guess this is the tool to make it works...
    Thanks, Pierre

    I installed evaluation version of Math interface toolkit to convert VI into Mex functions.
    but the toolkit only allows me to make LNX functions, there is not Mex function tab.
    I installed the evaluation version...and in the tools menu it says "math interface toolkit for xmath"  which I think is not the toolkit i'm looking for.
     I downloaded it from the link :
    http://zone.ni.com/devzone/cda/tut/p/id/2716 
    I tried both links on the above page i.e  NI LabVIEW Math Interface Toolkit (MIT)  and NI LabVIEW Math Interface Toolkit. but both install it for xmath and only make LNX function.
    where I can get the right toolkit?

  • Problems using math interface toolkit

    Hi! I'm trying to use the Labview Math Interface Toolkit to make a *.dll and a *.m file that will allow me to control a camera (via a PCI-1411 card) in either IDL or Matlab. When I used my *.m file in Matlab, I'm given this error message in Labview: IMAQ Vision: (Hex 0xBFF604A5) file not found. When I run the vi, everything works fine. Any suggestions on what I should change? Thank you.
    Attachments:
    Get_Pic.m ‏1 KB
    Snap_and_Save_to_File_MODIFIED_ICON.vi ‏91 KB

    Hello.
    The Math Interface Toolkit, as you know, simply turns the VI into a DLL, and then calls the LabVIEW DLL.
    This error that you are seeing is because the path that you are feeding the VI is not working. If you run this VI in the development environment and give it a valid path, then you will see the same error. Ensure that you are feeding a valid path to the VI (C:\Image)and you should see the error go away.
    Regards,
    Colin C.
    Applications Engineering
    Colin Christofferson
    Community Web Marketing
    Blog

  • Math interface toolkit problems

    I am writing some programs for a customer who uses Matlab, so I intend to use the Math interface toolkit. I have version 1.0.2 of the toolkit, and Labview 8.5.
    As an evaluation exercise, I have converted some simple vis and sent them to him, along with their dlls:
    (1) A vi that uses the sound file and output functions to do a simple beep sound.
     This seems to run on his Matlab machine, but does nothing. No errors, nothing.
    (2) A vi that just multiplies 2 numbers.
     This returns the error "One or more output arguments not assigned during call to "LVMultiply"".
     There is only one output, and it is assigned.
    My questions:
    (1) Anyone have any ideas?!
    (2) When I build a Matlab function, I get a message telling me that the target computer should have the Math Interface Toolkit run-time installed. I can find no information about this in the toolkit help file or on ni.com.

    Hi
    I have very little experience with the Math Interface Toolkit but have
    found some information that may be useful. I does look like issue
    addressed in the above knowledge base article may not be what is
    causing your issue. This forum thread contains more information that may be useful.
    The KB Why Does the MEX-File I Created with the Math Interface Toolkit Appear to Hang The MathWorks, Inc. M... may help you solve the issue with your first VI. I will continue to look into this and post any more info here. Let me know how it goes.

  • Math Interface Toolkit in Matlab: Can I interact with a VI as a parallel process

    I'm curious if it's possible to create a Matlab MEX file using the LabVIEW Math Interface Toolkit (MIT) that can be called in matlab and accessed while running?
    I'd like it to effectively work just like any other object in matlab.  I'd like to be able to query the object while it's running, dump values out of a buffer, and even hook events if possible.
    As it currently stands, the VI to MEX setup seems to just allow me to call a VI, run it, and then drop out.  I want to be able to continuously acquire and access the data as it's coming in and interact with it from matlab (i.e. fully integrate the VI into my matlab code as a separate object).
    Is this possible in some form or am I stuck with dedicating the matlab interface to the VI whenever I want to call it?
    Thanks

    Hi GusLott,
    You are correct that when you call a VI the command line will not continue until the output is obtained.  This makes sense since in LabVIEW that is how a VI operates (a subVI does not ouput until all outputs are obtained).  I believe this is also how commands in MATLAB work as well (correct me if I am wrong).  On the otherhand this is not a disadvantage in labVIEW since you can run VIs in parallel.  If you can create some way to run parallel threads in MATLAB then you will be able to do two (or more) MEX calls at once. 
    As far as object oriented programming goes, there is a labVIEW OOP, but I do not think it has been tested in conjuction with the Math Interface Toolkit.
    Brian K.

  • Could not use the math interface toolkit

    I have labview 8.0....and i am unable to use the math interface kit it provided....please help..

    swap,
    You are correct that the Math Interface Tookit 1.0 is not compatable with LabVIEW 8.0, which probably exlains why you are seeing an error.  You may have already seen this knowledgebase.  As suggested in the knowledgebase, you can get version 1.0.2 by visiting the Upgrade Advisor.  You can also contact your local NI sales representative.
    Chris M

  • Compactdaq and math interface toolkit

    Hi i have a problem with compactdaq, i have a
    simulink model and i want it to interact with labview using the
    compactdaq to real controlling a process.I send you an example of the
    matlab model to be more specific: in this model i want to match the
    out1 parameter with the analog out of the compact to give voltage to an
    actuator and the ln1 parameter with the analog input of compact to
    acquire data. In labview i should change parameters like Constant or
    the Gain in Subsystem and display data. I would like to know if it's
    possible do something like this and how.Thanks a lot
    Attachments:
    ControlloP.zip ‏6 KB

    Hi Freddino,
    I post the answer received by Andrew Stillwell about your problem.
    For future reference, a jpg of that system would be a lot easier to work with - MatLab isn't readily available around here
    So I'm looking at this:
    It looks like you are just reading in a value (In1) and feeding it back to an AO (Out1) after doing some gain and addition.  Yes it is possble to do this for cDAQ - you just need an AO and AI module.  For a feedback loop like this it would probably make most sense to use single point reads and writes. You could start with the PID Control-Single Channel.vi example.
    Hope this helps,
    Andrew Stillwell
    NIC
    Message Edited by Branch Support - NIC on 02-12-2007 02:32 PM
    feedback.JPG (34 kb)
    AE Manager
    NI Italy

  • Math interface toolkit - warnings

    My apologies if this is a "read the manual" question, but I haven't been able to find the answer.
    I have a vi for generating signals which I have converted using the MIT. When I run it in Matlab from the command window, I get no output from the DAQ card, and a warning:
    Warning: DAQmx Stop Task.vi:1<append>
    How do I get more information about what is causing the problem, an error code, for example?
    What does the <append> mean in the above?
    Solved!
    Go to Solution.

    I can do that tomorrow. In the meantime, this is what I am doing, it's a finite analog output generation:
    (1) Use DAQmx Timing (sample clock).vi to define the clock source and frequency for AO0
    (2) Use DAQmx property node to set the buffer size for the analog generation.
    (3) Use DAQmx Write (analog 1D dbl 1 chan N samp).vi to fill the buffer.
    (4) Use DAQmx Start task.vi to start the generation.
    (5) Wait for end of generation using DAQmx Wait until done.vi
    (6) Stop the task.
    (7) Clear the task
    These are split between 4 vis:
    Hardware initialisation (1)
    Write data to buffer (2) (3)
    Generate waveform (4) (5) (6)
    Clear the task (7)
    I have converted each vi using MIT. My reason for splitting the various functions was for code efficiency, the user will want to repeat generations or generate a series of different waveforms and I didn't want to clear and re-initialise every time.
    The vi's work perfectly in Labview.
    When I call the Generate waveform function in Matlab, I have noticed that it waits the expected time before returning the warning message - eg. if it's a 1 second waveform, it waits 1 second.
    One thing I haven't tried yet is running the 4 vi's separately and sequentially in Labview. I have only run them together as sub-vi's.
    I'm using Labview 8.5, DAQmx, and a PCI-6221. Not sure of other version numbers, PC is at work.
    Chris

  • Simulation Interface Toolkit - How to toggle a manual switch in simulink from LabVIEW?

    I have a manual switch in my simulink diagram that I want to use to switch between to values from my LabVIEW interface. I have tried to connect a toggle switch at LabVIEW`s VI with different parameters in the simulink model(I can choose betweenhow Port Labels, sw, and action), but none of them seem to work properly.
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    Hi
    Kotsya,
    Thank you for posting to the National Instruments Discussion
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    If you are not using the Math Interface Toolkit, you may be
    interested in using the MATLAB® Script Node. This allows
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    Help
    How Can I Resolve MATLAB® script node and
    Xmath Script Node Issues in LabVIEW?
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    Abhinav T.
    Applications Engineering
    National Instruments India
    LabVIEW Introduction Course - Six Hours
    Getting Started with NI-DAQmx
    Measurement Fundamentals

  • Required SW for the Simulation Interface Toolkit

    Hello,
    I would like to add a LabVIEW front panel to my Matlab/Simulink model.  According to the data sheet, the following software is required for the SIT:
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    The LabVIEW Simulation Interface Toolkit requires that you have a
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    Greetings!
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    Best regards
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  • Simulation interface toolkit tutorial

    I'm trying to perform the tutorial titled "Converting a Simulink Model into a Model DLL", found on p.22 the Simulation Interface Toolkit manual (http://www.ni.com/pdf/manuals/370420b.pdf).
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    I found a help example that was installed on my system with Labview, obviously a little more up to date.  It’s also found online here:
      http://zone.ni.com/reference/en-XX/help/371504E-01​/TOC5.htm
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    Attachments:
    matlab_output.txt ‏11 KB

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