Similar Questions

• I have the same front panel control in several events?

  I tried to find it in the forums and knows that there must be a simple answer, but being a left tackle L again, this one is cheating on me. So:

  I'm programming a small mission-generating program that will allow a user to create files of the mission for a small underwater AUV. These mission files can be created in Wordpad or similar, but I wanted to make an application where the user doesn't have to worry about the sometimes finicky syntax etc. The operating system of the AUV is based on linux. It is also a good opportunity to practice my LabVIEW file, management skills and experience programming state machine.

  I created a state machine, and is one of the States 'Add Primitive'. A primitive is one line of text that can be 'go to xyz', 'surface' etc. 'home' with the coordinates or other settings entered on the controls on the front panel when the appropriate primitive is called. I there before had 8 orders of the Panel before the user can choose to primitives with and structure of the event with a pane for each control. Each event, then displays string writing for this primitive controls and property nodes hide everything on the front panel.

  My problem is, I want a "Validation" button that will write the primitive duly filled in the file and display the file so far in a preview window. I can only put this button of validation in an event well and I can't use local variables. I want the same façade of control are committed to do the same for all the different events in my structure. Is this possible?

  I think that maybe the control and my preview pane should be outside (to the right) my structure. Or maybe a case of event isn't the right way to go at all. Any suggestion would be appreciated.

  Thank you

  I recommend some redesign of your state machine.  You should have a State just to handle events of the user (have the structure of the event in it).  The start State should go directly to that State of "idle".  You can then manage each button with the structure of the event rather than do an interrogation of sorts.

  In each case in the structure of the event can determine what State to spend.

• Does anyone know how to control the characteristics of police in a table with a front panel control?

  It seems that it should be simple enough.  I want that the user can adjust the characteristics of police of an array of numbers with some controls on the front panel.  I know how to do this using the drop down menus - but I want my users to do with the controls on the front panel.  I looked at the options property node and it does not resemble anything in here would help...

  Thanks for your time.

  j.

  Right-click on a digital control in the table and choose Create-> property Node-> NumericText-> police-> size.  Change to write and this allows to adjust the size on the fly.

• can't see the front panel control

  I took over a program written in LabVIEW 2013.

  When I right click and select find control on a control path in the block diagram, the Panel is displayed, but I do not see the trajectory control.

  Control is not * hidden, because the choice for the control to hide to the shortcut menu is available.

  The façade is divided into two with a separator. -What is the cause?

  EDIT: The control is in the left pane. Y at - it a trick to know is where is the control?

  I guess that's outside the visible Panel. Maybe if you double-click on the terminal, the control is selected, and you can move with the arrows until you see.

• Not possible to remove the front panel control, for vi created in LV7 to LV09

  Hi all...

  I'm trying to remove some controla blockdiagram as FP, but it is not possible to delete... not even possible to resize... already check, they are all unlock..., I enclose my vi. with screenshot...

  Regard´s,

  Kumar

  They are hidden, once that I gave to see the command/indicator of the block diagram and tried to delete has been deleted. Have you done the same?

• How to make non-visible control on the Front Panel appear at Design time?

  I have a few controls on the front whose visibility is changed (on or off) at run time. The problem is that if I stop the Run time, the visibility of the control remains in the running in design mode state. So I am not able to see or find the control to make changes in design mode.

  How can I make all the visible front-panel controls, or find and make it visible to a control on the front whose visibility has False?

  Thank you.

  It is documented in the help of LabVIEW.

  Hidden front panel display

  
  

  Perform the following steps to display a hidden front control or indicator. You can also hide the indicators and controls on the front panel.

  1. Find the terminal block schema for the object. "If you have multiple devices with the same type of data, right click on the terminals and select visible elements" Label in the context menu. Find the object with the label that corresponds to the object hidden façade.
  
  
  2. Right-click in the Terminal, and then select Show Control context menu if the object is a control or indicator to show if the object is an indicator.
  
  

  You can also use the Visible property to display the controls and indicators by program.

  You can also view all hidden front panel controls and indicators.

  Path: Fundamentals-> build the façade-> how-to--> configure the objects-> display on front panel of the façade hidden object.

• Binding the controls on the front panel programmatically

  It seems that Programmatic binding the controls on the front panel do not work when they are located in a tab control.

  Is this a known problem in LV 8.6?

  If the control of the façade is already bound to a URL of PSP you can link to another URL using DataSocket URL property during execution of the VI.

  

  If the front panel control is not bound to a URL of PSP, then you cannot attach it to the URL of the PSP when the VI is on. You can use the method AttachDataSocket of VI to change the link while the original VI is stopped (in edit mode).

  

• Is it possible to call a .exe (non-LabVIEW, such as Notepad) in a child windown on the front panel?

  I would like to launch a stand-alone .exe inside the front of my VI.  It is a piece of software by the provider of a sensor that I try to incorporate in my VI.  I was able to find how to call the .exe using the .NET constructor and invoke nodes.  However, the application opens in its own window.  Is there a way to run from a child window within the façade (ideally, within a tab on the front panel control)?

  I'm in LabVIEW 8.6.

  Thank you.

  smercurio_fc wrote:
  I don't think that it actually works. My understanding is limited about this feature, but since I read it only works with the pop-up windows and windows that are already children. The application's main window is not a child window.

  I've done it before.  I have attached a simple example using Notepad.  Make sure that the notebook is already open no open files.  Since the example is not the position of the child window, the position relative to the window will be the same, because it is off the desk.  So, make sure the upper left corner of the Notepad is close to the origin of the desktop computer.

• Spooky: Front lost control of the scheme code

  I have a LabVIEW (Win7-64B LabVIEW 14.0 32 bit) program that behaves a little bit scary.

  On some occasions, while the LabVIEW tandis que le LabVIEW programme program is running, suddenly the front panel controls are no longer read by the process of block diagram. So that's what I see:

  • The program runs, processes the data, and updates indicators as expected.
  • The run button is in unmanaged mode even if the program continues to run.
  • The button abandon red is not functional - push has no effect.
  • The block diagram can be debugged, simple staircase and breakpoints.
  • The controls on the front panel are not read and the program cannot be stopped because it is based on the action of the Panel before doing so.
  • The run button is non-functional in the sense that it can be pressed in run mode, but he has no apparent effect on the State of the block already running diagram.
  • The only way to stop the program is closing the front panel.
  • The behavior occurs at random times, is annoyingly frequent, but not enough (frequent) to make debugging by elimination of effective code.

  The program is a construction of State machine using queued messages and access material cRIO via shared variables.

  I know that this information is rather rare in which case debugging suggestions, but in which direction to look for all ideas are welcome.

  Some of these could possibly be explained by things like the user interface is locked by a structure of the event or updates to defer property is set on the Panel or being stuck in a call from the DLL, but there is another option that seems to match your description a little: https://lavag.org/topic/17049-windows-aero-theme-and-lockup/?p=104728

  When I saw him it was in an EXE file, so I can't comment on things like execution of arrows, but it was definitely a case where the VI was certainly running and updating the user interface, but was not receiving updates of the user interface.

• A way to group controls and indicators on the Front Panel and that they can be made Visible or not as a group?

  I would like to combine several orders and LEDs on the front panel in a group in a way that allows me to do the whole group Visible or not.

  I tried to use a Cluster, but it has a side effect that all elements must be inside the controls or indicators, but not mixed.

  Is there any graphic element, like a panel that can contain other controls and indicators on the inside and make them Visible or not as a group regardless of whether they are commands or the LEDs?

  Good suggestions on how to do this?

  Thank you.

  The tab control is still not my favorite, appearance but it's a way fast and effective to show and hide groups of controls and indicators.

• Front panel FPGA Boolean mechanical action is important to control the actions of a host RT?

  When a host RT controls an FPGA VI shipped through Boolean values on the face before of the FPGA VI, no matter what setting the mechanical action is used by the Boolean front panels?  For example, they all just act as "Switch When you press on" or the law "lock when you press on" as one-shots?

  Okay, it looks like I have a little bit of clarification to make.

  First of all, the patterns of waveform above are correct. As soon as the handshaking signal Host_Write if high, the data is written to the next clock cycle. At this point, "Lock" options are equivalent to eachother, and all the options of 'Switch' are equivalent to the eachother. Each takes 150ns to receive the signal of Host_Write.

  The only thing in my post above that is misleading is when I said that transitions occur at the same time. This is not true, as the writing must be serialy, 150ns apart.

  In case anyone is interested, I enclose the test and the test bench project. On your host machine, simply generate the files for the simulation construction-spec, then replace the tb_NiFPGASimulationModel.vhd generated by the one I've attached (this is the test bench). This should be at "C:\NIFPGA\simulation\FPGA_Boolean_Mechanical_Action\FPGA_Target\MechanicalActionTest\user". Given that forums don't add .vhd files, please rename the .txt in .vhd.

• Functional global variable home (RFGV) is cut off by the controls on the front panel

  Hello

  I though that I had found the ultimate way to dynamically manage memory in a system of Exchange. I read on RFGV here: http://labviewwiki.org/Functional_global_variable and put together a static FGV normal to follow the references for each created instance of memory which I then could easily remember just by name. But now I found that all the RFGV completely stops whenever a front panel with a menu control is used, i.e. 'enum', 'ring' or 'control path. I tried to put in different delivery systems, but not luck. I read about that guy who could have fallen into the same problem: http://forums.ni.com/t5/LabVIEW/Do-I-need-to-use-a-semaphore-when-reading-writing-a-functional/m-p/1... but he got no help what I could see.

  I have not tried semaphores. Don't know what that is. Check my little test code and tell me what I am doing wrong. Or maybe there is no solution in this case I have to abandon the idea of the use of RFGV for anything. Maybe memory held all the VI will be assigned statically.

  Run the code (in LV2009) and watch the 6 LEDS Flash. Then click on anyone of 'enum', 'ring' or 'path' (the file dialog box) and watch off LED when dynamic memory is used to write or read while the continoues to static VI.

  Any suggestions?

  Best regards

  Kai

  If the memories are good, what you're running against is not the user interface thread, but an internal mechanism of LV called the loop of the root, which must run in some things. Specifically, in your case, the method run a VI and showing a menu (a menu real, or a context menu of a ring).

  You can work around this problem (and greatly simplify your code) If you use the call node of the reference instead of the method to execute a VI, but I wouldn't recommend it anyway, since I assume that your code is not what you think it does. In LV memory management can be quite complex if you want to be able to control it, so if you feel you really need, I suggest to start by searching for existing materials on the management of memory in LV

• Programmatically disable the controls on the front panel

  Hi all

  I have a case in which I need to activate the control of front panel during scanning or taking data and when this case is false / when not not taking data. I try to make the Subvi usng vi reference, the node property, making the label controls and disbaling it. I want to disable the control listed in the table during the real deal and allow them to return to the case of fake. But right now, it of not working and hangs my main program. Please see the vi attached and help find where I am doing wrong.

  Thank you

  The best way would be to create an array of references to the controls you want to mess with beforehand.  I say that because I'm guessing that you have several groups of controls you will be turn on/off at the same time.  If you have a table of these controls already created, then just run the table in a loop FOR and use the Disable property.  I made a few minor cleanups in your current VI.  I got rid of the outermost case structure since the two cases are essentially the same thing.  A selection function allows to choose to enable or disable.

  NOTE: the forums are screwing again and not let me post a VI.  Change the extension back to vi to open it in LabVIEW.

• Using the 'current default values do' as a control on the front panel

  Hello

  I'm building a VI that uses a lot of digital controls. I want to use "do current default values" as a control Boolean on the front panel for the user.

  Is it possible to implement when the program is running? What would be an alternative, if this was not possible?

  Thank you

  Mhaque

  
  

• How to set the default value for the digital control on front panel?

  How to set a default value for a numeric control of LabVIEW 2009 Front Panel? I have several input values that are actually configuration settings I want to settle with the default values of zero. I want them to be the values displayed when the façade first appears until the code is executed.

  I really want to use the Minimum and Maximum limits by default for this because I still want to be able to define acceptable limits for values.

  I would not be able to specify a default value of zero for these entries?

  Enter the desired value, then "right click...... of default data of value to operations. Save the VI.