Insert of Matlab script

Hi all, I am new to Labview and need some help in doing my project. I know that Matlab script can be written in Labview and would like to know the procedures. Does anyone has any examples or tutorial on this? Thanks in advance
Rgds,
Tay

Hi Tay,
If you want to include MATLAB script directly in your VIs, you will need to use the MATLAB Script Node, found in the Mathematics > Scripts and Formulas > Script Nodes palette in LabVIEW 8.0.  There are also some MATLAB Script Node examples in your LabVIEW directory...specifically, the examples\scriptnode folder.  And of course, if you search the LabVIEW Help for "MATLAB Script Node" you should find some helpful documentation on the subject.
Also, if you're using LabVIEW 8.0, you should try out the MathScript Node, which is similar to the MATLAB Script Node, except with MathScript, all of the work is being done in LabVIEW...MATLAB is not required.
Good luck,
-D
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman

Similar Messages

  • How to insert data from file into matlab script node

    I have interfaced input data from file to be processed using matlab script node. But the problem is that I could not capture the multiple data into matlab script node and to convert it into matrix. Further to this I need to process the data by plotting graphs from it. Thank you in advance for the advice

    Zarina,
    To clarify your problem, you have a script node contaning your Matlab code. Are you then using the standard LV functions to load in your data from a file and pass it into the script node?
    Regards
    Tristan

  • Error when inserting Web Dynpro script in Adobe form

    Hi
    In my WD component in one of the view I have an ADOBE form (Online scenario) and a button to save data into backend. In the ADOBE form everything is working properly, however the problem is when I click on the button to save, Its not getting into my action code. Even I am not getting any error other than the wait symbol.
    In the form I have taken ZCI layout but when i'm inserting Webdynpro Script its showing an error 'Error when inserting Web Dynpro script'.
    Please let me know why this error is getting.
    Thanks
    Ram

    Hi Ram,
    I hope  you help me,
    I have the same error, when I insert a web Dynrp Script, what version of SAPGUI do you use?
    Thanks

  • Retrieving data from a MATLAB script node

    I am creating a VI that imports and manipulates arrays of data points and then plots them in Labview. When I run my Matlab script in Matlab there are no errors and all the assigned variables exist in the form that they should exist but for some reason Labview cannot retrieve all of them (they just show up as zeros). There are no errors in the script as far as I can tell. Do you have any idea what could be going wrong?

    Hi,
    You can use the MatLAB window opened by LabVIEW to debug your script.
    Check the values of your variables in the MatLAB window and try to find out where the data goes wrong. I've experienced many problems with LabVIEW MatLAB nodes on different PCs, and many times legal MatLAB operations would go wrong in the script node. You will need to find out which line exactly does your MatLAB code not executing correctly and try to modify the MatLAB codes from there.
    Hope this help,
    Dan

  • Matlab script no longer works after upgrade of matlab

    First of all im using labview 7.1.1 to execute a vi which uses some labview scripts to do the bulk of the number crunching and  labviews excellent interface.
    The problem happened when i recently was forced to use Matlab 7.1 R14 SP3 because some of my other routines required this.  After i had upgraded matlab and tried to run the labview vi, all i keep getting is an error no. 1050 from the matlab script object.
    Now the most infuriating thing about this is that it is such a non descript error, i mean , what does it actually mean? and as such i dont even know where to start in solving this problem.
    Has anyone solved this problem or indeed had it themselves, im at the end of my tether with it now.
    Thanks for your help
    Neil

    This is a known problem between different version of Matlab and LabVIEW. Mathworks changed the Matlab interface with version 7, which broke a lot of LabVIEW code. Which version of Matlab were you using before? You can try searching these forums for "matlab error 1050 labview" and you'll see what I mean. Typically he problem is the version of the matlab.dll that's in the LabVIEW installation directory. You can try the stuff suggested in this article.

  • Error when inserting Web Dynpro script

    Hello,
    I am trying to create a new form using fields from KNA1 and am using ISR controls. When I try to insert Webdynpro scripts i get message "Error when inserting Web Dynpro script" Message no. FPUIFB094.
    Has anyone faced this error? no notes are available regarding this and in SDN.
    Regards
    Prasad

    It must be atleast ALD 7.1. Check this [Thread|Re: Problem on Button; having the same issue. Also check the SAPNOTE 962763.

  • Error produced when trying to pass variables to a Matlab script

    For some reason, LabVIEW produces an Error 1047 (Unable to pass variable to the script server) whenever I create an input variable to a Matlab code block.
    Outputs work fine (for example, connecting an output "a" to a Matlab code block that says "a=rand(50)" correctly produces a 50x50 array of random numbers that can be displayed in LabVIEW). However, creating any kind of input node, whether or not the associated variable is mentioned in the MATLAB script, brings up an error 1047.
    Any ideas what could be causing this? I'm using LabVIEW 7.0 and MATLAB 7 (R14). I've read the article
    >here and that's not the problem, and I've also updated my matscript.dll to the latest version, 7.0.0.2, which also made no difference.

    For what its worth,
    I work in a company with a lot of Matlab users, and I,m programming in Labview and Matlab.
    When I create a testrig measurement I always have to convert data into Malab format, so I used the script server a lot... exept we have a limited pool of Matlab
    licenses so my work was halted whenever the licences where gone.
    So I wrote a Write2Matlab vi.
    This vi can log data from a measurement and write it in a Matlab readable file format (Matlab6 R12).
    After logging you can append more data. It works with(Double,Single,Int32,Int16,U16,U8,String) matrix see for yourself in an example (Write2matlab_test.vi).
    Perhaps this is an alternative solution for your problem.
    Please send me a reply if you find it usefull.
    John
    Attachments:
    Write2Matlab.llb ‏1145 KB

  • How to call a function in "matlab script"

    Hellow!
    I am using Matlab scrip to make some matlab program in Labview,but i find when i try to call a matlab function like"myfun.m",it will ouput error message"undefined command myfun. So what should i do to call function in matlab script? thanks!

    Happybird,
    Do you have MATLAB installed on the computer?  LabVIEW makes calls
    to MATLAB to run the script node.  If so, make sure that you have
    launched MATLAB and then launch LabVIEW.  Once you have tried
    that, <a
    href="http://digital.ni.com/public.nsf/websearch/4475BC3CEB062C9586256D750058F14B?OpenDocument">KB
    300A6NDT</a> might be helpful.  Hope this information helps!
    Andy F.
    National Instruments

  • I can't find the MATLAB script node in labview

    We are using a MAC G4 with OS 9. We also have labview 5.1. I have looked under Mathematic>>Fomula in the tools palette and I cannot find the MATLAB script node.
    Is there an extra download that I need to get this MATLAB script node?

    The HIQ and MATLAB script nodes are only available in the full and professional development systems. If you have one of these versions, these nodes should be under the Mathematics>>Formula palette.
    If you have the base package of LabVIEW, you will not have access to these script nodes. Details about which options are included in which development packages can be found at:
    http://www.ni.com/labview/devchart.htm

  • Error occured while executing Matlab script

    Hello!
    I want to run a Matlab script under LabVIEW, but there is always
    a error message which says "Error occured while executing script".
    Should I install Matlab on the same computer at first? if yes, do
    I need to configure Matlab under LabVIEW?
    Thanks!
    Le

    Yes No
    Eric P. Nichols
    P.O. Box 56235
    North Pole, AK 99705

  • How to load a variable using MATLAB Script?

    I need to load a selected variable from .mat file, using MATLAB script , and analyse it.
    the attched shows my vi, there are two inputs nodes 'file' contains the .mat file path, and 'varn' contains varibale name in that .mat file which can be selected by user. Using " load(file)" the whole .mat file is loaded in the workspace and become avaiable at output node, however I am not able to pass a selected variable name through string "varn" input, MATLAB script does not recognize the variable.
    any idea to reslove it is realy appreciated.
    Attachments:
    load a variable.JPG ‏18 KB

    Download the VI and .MAT file. Run the VI, and it'll plot the data inside of the .MAT file.
    Andy Chang
    National Instruments
    LabVIEW Control Design and Simulation
    Attachments:
    testfile.zip ‏5 KB

  • Problem: insert images by script

    Hello.
    I have problem with insert images from script like this: <& "H:\P1010014.tif">.
    After insert all images are square :(
    But i need its own sizes and proportions.
    P.S.: i can`t write in tag width and height because in all images its different

    Try posting at the Web Development / Standards Evangelism forum at MozillaZine. The helpers over there are more knowledgeable about web site development issues with Firefox. <br />
    http://forums.mozillazine.org/viewforum.php?f=25 <br />
    You'll need to register and login to be able to post in that forum.

  • Input data type of Matlab script node

    Hi,
    I have 1D array of complex number in single precision.
    Matlab script node is used to import data into Matlab and do some data processing, and then export.
    Data type of input is currently double precision.
    How to re-define this input data type of the Matlab script node?
    Thanks,

    Right, arrays of singles are not supported. See Comparison of MathScript RT Module and the MATLAB® Software Data Types in LabVIEW
    As for memory usage, Profiling the VI should let you know how much memory Labview uses when running your code. Communication with MATLAB® is done through ActiveX, and I'm actually not 100% sure whether it will reflect memory usage from script execution. I think it'll be simple enough to profile your VI with and without the MATLAB Script node and note the memory usage difference...
    Misha

  • Using '!' in matlab script

    It seems unable to invoke the '.EXE' file in the matlab script node.
    In my matlab code I use '!' to invoke a .exe file, it can be execute in matlab, but when I copy the same code to labview(matlab script node), it does not work
    the error messages are
    LabVIEW:  Error occurred while executing script. Error message from server: Warning: Name is nonexistent or not a directory: D:\Wastewater_experiment\programCodes\DymolaFiles.
    > In c:\matlab6p5\toolbox\matlab\general\path.m at line 116
      In c:\matlab6p5\toolbox\matlab\general\addpath.m at line 88
    < c:\matlab6p5\bin\win32\dsu.txt created.
    ... Error message from alist
    Error opening file "dsin.txt": No such file or directory
    ??? Error using ==> load
    Unable to read MAT file temp.mat: not a binary MAT file.
    Try LOAD -ASCII to read as text.
    Error in ==> C:\dn\programCodes\initload.m
    On line 43  ==>      load temp
    Error in ==> C:\dn\programCodes\operatingPoint.m
    On line 17  ==> [x_init, x_name] = initload; % loads initial conditions from txt-file 'dsin.txt'.
    . in labviewmatlab.vi
    I am sure I have add all the path. and If I just run the code
    ! alist -a dsin.txt dsintest.mat
    in matlab script node. There is no errors but it can not be execute.
    This alist.exe file is from 'Dymola' to transfer the 'txt' to 'mat'.
    How can I do with this error
    Attachments:
    labviewmatlab.zip ‏52 KB

    Sorry
    The problem have solved.
    When I invoke .txt .mat .exe in LabVIEW matlab script node, this files should be under '.../matlab' path. I do not kown why it is not '.../matlab/work'.And 'addpath' is useless except to 'invoke .m' files.
    It can work now.

  • I have some software problems of running matlab script node in the LabVIEW program.

    Hi there,
    I wrote a simple matlab code, like x= 1, y = x*2. Then I tried to put them into matlab script node in LabVIEW.
    However, when I ran the program, I couldn't run and Labiew show some error. 
    Then I tried the method talked before on this forum. Please see the following link.
    http://forums.ni.com/ni/board/message?board.id=Mat​hScript&thread.id=571
    I followed the instruction and open the "command prompt," type some commands then I could run the program, and simultaneously, the LabVIEW program open "Matlab command line window" and run my labview code. However, if I didn't use the command prompt, the  "matlab command window" will not be opened by running the labview program. It would just show some error. And even if I turn on the matlab program in advance, I still couldn't run the labview program.
    Is there any effecient way to deal with this problem without using "command prompt?" Because I try another PC with both matlab and labview installed on it, I "can" run my simple matlab script node on it, and it will open the matlab command line window automatically by running my code. Therefore, I thought there might be some software linking problems in the previous PC I used . Do you have any ideas?
    Thanks in advacne.  

    This board is for Mathscript, but you seem to have a matlab problem. You should probably post in the LabVIEW forum instead.
    What is your LabVIEW version? What is you matlab version?
    LabVIEW Champion . Do more with less code and in less time .

Maybe you are looking for

  • Doubt in Oracle Report

    Hi I have a table in which I have a column called file_name of type BLOB. In that I used to store files of PDF format.I want to display those files in oracle report. I'm using reports 6i.Can anybody know solution for this please let me know. Regards

  • Index size bigger than table name? why?

    I have a table student_enrollwment_item_tbl with primary key "pk_stu_enroll_item" - STU_ENROLL_ID, TASK_ID, PART_ID, ITEM_ID. Table structure is as following: Name Null? Type STU_ENROLL_ID NOT NULL NUMBER ITEM_ID NOT NULL VARCHAR2(15) PART_ID NOT NUL

  • Hard-Drive video camera compatability

    Hi all, On the Final Cut studio page there is a hardware compatibility utility...is there something similar for Final Cut Express? If not, can anyone tell me about hard-drive-based video cameras which can work with FCE? Thanks

  • Perfmon AD counters for slow perfomance

    Hello I have a domain consisting of 6 domain controllers defined across two sites. The subnets that are in use have all been correctly defined within sites and services. During peak logons we are seeing DNS rejects and authentication failures on one

  • Wireless client disconnecting

    Hi All, We have a WLAN setup with 1 AP 1230 assigned as a WDS, and the 16 APs configured as Infrastructure AP. Off late, I am experiencing a problem where all my clients are getting disconnected frequently. I have checked the logs and the logs indica