LabVIEW Auto close VI reference?

I have problems with what I think is self closing Labview VI reference. Here is my configuration:

I have a number of VI requiring a termination when the program ends.

First call of the VI, it essentially records a VI termination calling VI with the terminate flag is set. This is done by opening a reference at the end of the VI and add it to a table in a FGV.

At the exit, is called the VI containing the FGV. It runs every VI in the table to put an end to any VI in need.

The problem is, he keeps complaining that the VI reference is not valid. I have check at the time of the VI in the table to be sure that the VI reference is valid a TI is fine. It is only when he tries to call their output which is has a problem. LabVIEW automatically closed all references to the VI?

I used this system successfully before, but on an older version of Labview (8.0). If something has changed since then?

Once the hierarchy of VI, who called the open reference goes slow, any reference is automatically closed. LabVIEW does not have a system of reference such as Java or Lua, where the runtime environment controls the lifetime of objects depends on if they are assigned to a variable. Instead, it controls the lifetime of its "objects" (almost everything what is represented with refnums) by the life expectancy of the VI of high level which the hierarchy had the call.

So if you start VI these refnums which generates your main VI and also the refnums and then ends, went the moment your VI start stops running. You will need to make sure that the refnums are open inside a VI remaining runtime for your application, which, in most cases, would be the main VI that starts after other panels sub needed.

Tags: NI Software

Similar Questions

  • Close the reference (for a more specific class)

    I'm feeding a control reference to the node "to a more specific class.  When I finished, I understand that I have to close the order, but what I also close the reference that is the output of the node "to a more specific class?

    This is the same reference... There is no need to close the two.  And if you approve the automatic cleanup of references LabVIEW, you really do not need to close, as the references control must never be matched and will be automatically cleaned when your VI is inactive.

    For more information, here is a blog that just now, I wrote that talks about closing reference.

  • Should I close the reference?

    Hello

    I would ask... should I close the reference of the workbook in the following code?

    In fact, I have little idea whether to close a reference or not, because I thought that LabVIEW will automatically close all references after the execution.

    I also found that someone says that the activeX references must be closed on mine.

    Could someone correct my understanding of the closure of reference?

    In this case I'm fairly certain that cleaning screws will close these references, so I don't think that you should close your self.  One way, usually, I test this is I put the code in a while loop, or use the continuous run button.  It's basically the only time wherever I never use only and I have on small subVIs like that.  Then, I run my code over and over again and look at the Task Manager to see how much memory is using LabVIEW.exe.  After a few seconds if there is a leak of memory then memory will continue to increase.  If the memory goes up and down a bit, but overall does not continue to grow, then all the references that should be closed are closed.

    There is a white book NOR on the reference Server VI of closing which is exactly what you are doing, but has relevant information.

    http://www.NI.com/white-paper/14393/en

    And an exchange of views on this subject.

    https://lavag.org/topic/16443-closing-references-in-LabVIEW-new-documentation-published/

  • WANT TS 15: Auto close the folder window

    My laptop is Envy TS15, Win8.1 update to Win10 64-bit. I find 1 trouble: his auto close the 'folder' window shortly after and continue when I opened again. about 10 minutes 1 times. Please help me solve this problem.

    Hello @Raiz,

    Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums, I would like to draw your attention to the HP Forums Guide first time here? Learn how to publish and more.

    I came across your post about the problem you are having and wanted to help!

    For starters, can you provide me with the product number of the laptop?  Here is a link, you can use that will help you find your model and product number: How can I find my model number or product number?

    In the meantime, can you provide me with a little more information on the issue?  You indicate that the windows are closed automatically?  Looking forward to your reply!

    Kind regards!

  • LabVIEW 2013 close when I try to read the database table.

    LabVIEW 2013 close when I try to read the database table.
    I get the error message, Labview falls just crashes. I use Labview x 32 and connective Toolkit of connectivity of database on Windows 7 x 64. I connect to PostgreSQL with ODBC driver, the connection is stable.
    In my database, I have a lot of tables, I read all those without one.
    When I try to read table bad I get data then labview crash. When I restart Labview, I have no message on the error.
    Also I try to use LabSQL-1. 1a. But it has the same result.

    I found the solution.

    I think the problem was that I have very large table in my database.

    At the beginning I received data from table with next quiry:

    SELECT column1, column2 FROM 'table ';

    But when I write then:

    SELECT column1, (column2, ',') array_to_string FROM 'table ';

    all worked!

  • A single reference FPGA, 2 parallel FIFO running, how close the reference?

    The FIFO are being made of a single FPGA reference. If you see on the right the most, I have 2 close to reference, when I press the stop button, it gives me the error dialog box. What is the proper way to close the two FIFO?

    That is right.  The reason is because they are both the same reference.

  • [JDev12.1.2, ADF] "Query with table Panel": how to auto - close the query Panel when the search ends?

    Hallo,

    I would like the Panel request auto - closes when the search is complete.

    This is to give all the space for the result in the talbe.

    How can I achieve this?

    Thank you

    Federico

    Federico,

    to do this, replace the queryListener one leave this point of a bean method. In this method, you run the processQuery by default and after that set the attribute to disclose the af:query component to false and ppr.

    {} public void processQuery (QueryEvent queryEvent)

    The generated QueryListener replaced by this method

    #{bindings. MyAllCriteriaQuery.processQuery}

    QueryDescriptor qdes = queryEvent.getDescriptor ();

    print or save the view criteria

    System.out.println ("NAME" + qdes.getName ());

    appeal by default query event

    {invokeQueryEventMethodExpression ("#{bindings.", QueryEvent "}") MyAllCriteriaQuery.processQuery};

    Object UIComponent = queryEvent.getSource () (UIComponent);

    Riq RichQuery = object (RichQuery);

    riq.setDisclosed (false);

    AdfFacesContext.getCurrentInstance () .addPartialTarget (riq);

    }

    Private Sub (string expression, QueryEvent queryEvent) invokeQueryEventMethodExpression {}

    FacesContext fctx = FacesContext.getCurrentInstance ();

    ELContext elctx = fctx.getELContext ();

    ExpressionFactory efactory = fctx.getApplication () .getExpressionFactory ();

    MethodExpression = me efactory.createMethodExpression (elctx, expression, Object.class, new class [] {QueryEvent.class});

    me. Invoke (elctx, new Object() {queryEvent});

    }

    and on the page

    model = ' #{bindings. " MyAllCriteriaQuery.queryModel}"queryListener =" #{QueryTestBean.processQuery} ' "

    queryOperationListener = ' #{bindings. " "MyAllCriteriaQuery.processQueryOperation}" resultComponentId =": resId1" / >

    Timo

  • «View log...» ", tools->"copy the file... ". "Auto close windows journal

    We use 11i on sun solaris.

    I am not able to do "tools-> copy file...". "on the log file, the internet Explorer popup and auto close immediately.

    no problem with the copy of the file to the output file, it works accordingly.

    How to solve this problem?

    shng wrote:
    We use 11i on sun solaris.

    I am not able to do "tools of-> it copy the file...". "on the log file, the internet Explorer window and auto close immediately.

    no problem with the copy of the file to the output file, it works accordingly.

    How to solve this problem?

    Add the URL of the application to the trusted sites list and disable pop-up blockers. In addition, please confirm that you have no errors in the database log file.

    Tools > copy function to Notepad [ID 176023.1] downloads
    Tools: "copy file...". "Fails to copy a complete simultaneous report output file [ID 835620.1]
    How to fix internal server error when you use the feature to copy file [986935.1 ID]
    Implementation of Word or Excel as an Option of the observer [178133.1 ID]

    Thank you
    Hussein

  • Set adapter LabVIEW auto detect programmatically

    Hello

    I can programmatically set the adapter of LabVIEW 2011 RTE inTestStand using this expression:

    RunState.Engine.GetAdapterByKeyName ("G VI Flexible adapter"). AsLabVIEWAdapter.SetServerInfo (LabVIEWServer_RTEServer, "C:\\Program Files (x 86) \\National Run-Time\\2011\\lvrt.dll" ")

    I want to set the adapter to 'Auto Detect VI version' instead. Someone know a solution to this

    Thank you

    BR

    Mogens

    Try this:

    RunState.Engine.GetAdapterByKeyName ("G VI Flexible adapter"). AsLabVIEWAdapter.SetServerInfo (LabVIEWServer_RTEServer, "AutoDetect")

    I used the GetServerInfo method with mine the autodetect value and that's what he returned.

    Hope that helps,

  • close the reference on "read text file" - Ref num vs prefer class conflicts

    Dear users,

    Vi Analyzer asks me to close the refernce created by VI "read text file". So, I would close a refnum created by primitive VI "read text file". I used a direct wire, wiring by top and bottom of the casting, but each of them attend class conflicts (see the screenshot below). It is even possible to correctly transform the refnum (byte stream type reference) to refer (reference VI generic) and remove the refnum?

    See you soon,.

    You must use the close file.

  • [Ss14]: Auto close gaps on plate or delete

    Hello

    I use ss14 on Windows 10.

    Today, the gap between the two clips on the expert opinion does not automatically more - close if I delete a clip or cut a clip left or right.

    I'm sure, that this was the behavior of the EP for years - so, how to re - activate this?

    Thank you :-)

    Konrad

    It is not possible to disable auto ripple in Premiere Elements, so the timeline still has as ever, Konrad.

    How do you delete a clip? You using a keyboard or right-click shortcut and selecting a delete option?

    Is there video or audio on any other track? Don't forget that remove the video does not leave a real gap in the chronology unless there is no other video or audio in closing the gap on a parallel track.

    Finally, note that in version 14 deletion will only fill the void on 1 video/audio 1. Remove a higher video track cannot trigger a ripple.

  • I would like to see a faster solution to auto close all applications running with a button or command

    I run an iphone5s Apple, I al so have phones, android phones, and windows, with them, it is easier and faster to close applications running in the background to save battery time

    Let them know http://www.apple.com/feedback/iphone.html

  • Satellite Pro L10 begins to if auto close the lid

    I've got a L10 running windows xp profesional. The problem I have is after the laptop is off and I'm going to close the laptop top restarts.

    Hello

    What?
    Are your sure that you do not use the option "restart" your laptop?
    The Windows operating system contains the closing down, and then restart the option.

    The other possibility is that the parameters energy saver is defined to start the laptop.
    Please open the energy saver and check the option "when I close the lid.
    But it's very strange because you can configure this option only in sleep or Hibernate mode.
    However I recommend you this feature and if necessary set it to no action

  • Cannot auto close down and move the service profile to new server

    When the blade material is fail service profile will move to the new server in the server pool. but before the service profile move to the new server, the administrator must approve by clicking link to downgrade in the configuration of server pool. If I tested it by click decommissioning in Server Maintennance Menu work fine but tested by disassemble Blade Server, unmount HARD drive, start button / stop does not work the service profile do not move to the new server.

    I need auto service decommission and how I config it?

    When a service profile move again if material blade server fails?

    Unfortunately, the UCSM has no Automation like that today.

    Thank you

    Michael

  • Auto Close player once sent mail

    Can Adobe Reader automatically close the file that I'm emailing once the email is sent?

    I keep manually close the file after it is sent.

    Thank you

    It can, if the button used to do has been configured this way. But not otherwise.

Maybe you are looking for