Nodes cDAQ controllers hardware front panel

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• Is it possible to use a box Structure to hide digital indicators on the front panel, when they are not in use?

  I'm rather new to LabVIEW, only used for about 1.5 weeks from this post, it means that I may be missing something pretty obvious due to ignorance, but is it possible to make my front to change as my changes of breakage due to the selection of the user to a certain case via the front panel?

  The goal of the program is to make a simple layout for a user who uses the digital multimeter that the proposed code is designed for and I don't want tons of digital controllers and such clutter the screen that do not work with the function of the user uses to measure with.

  Thanks in advance.

  Yes.

  Two ways: 1. use a tab control.

  2. use of property nodes (Visible property).

  The tab control is a bit easier on the block diagram, but if some controls should appear in many cases it is difficult to do.  Property nodes take more space on the diagram but allows you the versatility to do almost everything you want.

  Read the help files and look at a few examples.

  Lynn

• Switch Soft Front Panel, active device classified

  I have a with PXI chassis modules, two switches PXI-2350.  Using the Soft Front Panel switch, it seems that the names assigned to the list of active device (both 2350's in this case) are backward, what to expect.  Is there a way to reassociate those names to the 2350's physics?

  Thank you

  Confustus,

  It's an interesting question that I've never seen before, your devices in a Soft Front Panel should be linked to features like labels in MAX. I was wondering, when you say "we can select using MAX, a road that connects the power supply to the digital multimeter using"Switch 1"(for example), and we can see the voltage reading show on the Soft Front Panel 4071 as planned", what you mean exactly? If you had to choose your hardware device, and then click test panels, the NI Soft Front Panel load switch. Are you saying that when you choose test panels and loading Switch Soft Front Panel of max works as expected, however the application outside opening MAX does not work?

  Or are you talking about the Test panels you open in NI Switch Executive? The test for NI Switch Executive panels refer on behalf of virtual device NI Switch Executive, not the DAQmx device name. If you had named the name of the NI Switch Executive virtual device in the same way, that could be part of the confusion of the problems that you see. See the images below:

  

  NEITHER DAQmx Test selection panel that leads upward.

  

  Test NI Switch Executive Panel allows this. If these names are similar, I can see how that might be confusing.

• VI front panel does not close when it is done executing, when this vi was called by reference.

  I created a simple vi set to indicate the problem I'm having. I run dynamically under vi to leave a main application. Simply the main application is my test exec and the Subvi I call dynamically is different tests. In the example I have write here the criterion vi is called Test electric 1(vi). I configured this electric Test 1 vi to see the front when it is called and close later while initially closed.  Problem is that it doesn't close before.

  Other things to keep in mind

  • I want to be able to run the vi test and do not wait until it is done.

  I'm using LabVIEW 2012 SP1.

  

  Basically the fence after that call questions only if the VI is called as a Subvi (as if you open you a VI and run it, it does not close when it's done).  Are two ways to work around this or have your app high lvl close the VI when it's done, it's explained here:

  http://digital.NI.com/public.nsf/allkb/987B2026B41BD39786256CF800032E8C

  or having your VI close when it's done.  A reference of the VI and the front panel: Close call node.

  I hope this helps.

• Reminders does not work in the executable LabVIEW front panel

  I have a couple of reminders in the process template that trigger an event in the event structure to update of the lights on the front panel for the user. Everything works fine until I have create an executable file. This can also be an indication of the other points, I have not discovered yet.

  Any ideas?

  Thanks for all the help.

  Found!

  Not unlike most of LabVIEW developers, I have a range of utility screws that I use over and over again. Such vi is vi uses a property node to find out what environment the application is running in, i.e. .llb, exe, development, publishing student, etc.. This vi is used because SEO screws in an executable file have a way different than when their listing in the development environment. Using this vi allows your code to reference the screws properly when developing and when the executable is built. The code still works because it automatically adjusts the referenced path of the vi. See attachment 'Path Finder.vi environment'.

  Now for the fun part! For some reason, perhaps because of the friendly character of NOR and the relationship it is with its developers :-), AND decided to change the path of the executables in LabVIEW 2009. After hours of troubleshooting and countless rebuilt, I came to the conclusion that the ' paths of the band of "work magically stopped working. It was at this time one of my friends happened to walk and ask why I had everything in my monitor across the room (figuratively speaking of course, I'm sure we've all been there). I explained what could be the only conclusion, band paths do not work!

  My friend immediately began laughing, having recently had the same problem. He explained that in LabVIEW 2009 executable paths are different and our 'find the path vi' would not work. He added that NOR, after finding this funny, however gave the developers a way to solve this problem with a check box within the app Builder. The box is called "Layout using LabVIEW 8.x file." See attached photo named "App Builder."

  The only thing I could say to my friend was, ' silly me, I should have know what that.»

  Laughing out loud

  Thank you for trying to help, it launched my butt.

• LabVIEW version of the source code of the NOR-DCPower Soft Front Panel

  I work with an SMU NI PXI-4130. There is a front panel soft exe called the "NOR-DCPower Soft Front Panel" that can be used to control the instrument. I was wondering if there is a version of LabVIEW source code for this driver?

  Jim,

  as much as I know there is no LV source code provided for the Soft Front Panel. But there are a few examples of LV, which will be close to the characteristics of the SFP. So I suggest to you to dig in the examples you find in the Finder of the example.

  Input and output hardware > Modular Instruments > NI-DCPower.

  hope this helps,

  Norbert

• How to disable together them on the front panel lights

  I have a VI that the front panel is shown below where an indicator of the chain is having a problem. The witness here shows the value "Please save the value of Temp Air [C]".

  Problem

  When the indicator is clicked on in the front panel the text box becomes 'editable' in appearance (only) and I did not want this

  Question

  How to eliminate the behavior stated below in the second picture, when the indicator also displays editable? How can I simply leave the system in a State of photography ?

  -Normal front photo

  

  Photo of Two - front with click on channel indicator

  

  Justin,

  Try to turn off the indicator. Node property or right click Advanced-> checked-> disabled state.

  Steve

• 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

• Updated in time real front panel

  Hello dear colleagues,

  I'm working on a program to test a printed circuit board. The problem is I want to show the progress of the test on the front panel in real time. Global variables found to be very useful, but they are not exactly what I'm looking for, since writing to the variable does not influence the indicators of reading instantly him (naturally).

  If the solution I provided is to have 2 loops: one where the subVIs and the subsubVIs are executed and write their date to the global variable as soon as it becomes available. And a second loop that runs at the same time and goes constantly date of the global variable to the indicators.

  However, this loop 2 solutions feels strange to me. Is there a better way to update the façade in real-time? Something like the pointers or references? I tried the nodes property and 'references' but they both work only locally...

  I wish all a pleasant day

  Tarik

  I usually have a loop which does no GUI: users by pressing the buttons/edit orders digital and/or update of the indicators.  So my trick is to use user events to pass data subVIs and loop parallel to the GUI.  The Structure of the event will see the event and you can just write directly to the terminal of the indicator.  It works very well and is much more scalable than the global method.  It is not also question, so you're not wasting CPU and memory resourses to update an indicator that has no real need to update.

• 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.

• A button on the front panel reset

  I use a record button on the front panel, in the mode "change when you press on. I have run the VI, then press the record button. After having intercepted the VI, the button lights. How do the button return automatically to the OFF state during execution of the VI next time?

  Set the property to "False" node, it will reset.

• 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.

• Boolean front panel disconnected from the block diagram

  It is very strange behavior I've ever seen elsewhere.

  I opened a program that I have used before that works, after the replacement of some dll which is called.  I don't know if it's relevant, but just in case.

  In any case, I have a structure of the event in a loop.  Events are to turn certain values of output in a bitmap and update some of the entries.  As you can see in the screenshot of the time-out loop, the values of the input bitmap are fed directly in the Boolean flags.  The problem is that even if the thread is true, the façade is not up-to-date.  Also, when I click on the button stop, the Boolean value on the wire is not up-to-date.  You can see on the screenshot of the probe and the front panel.

  At no time have I stopped explicitly updates from the front panel.  Indeed, the status indicator updates correctly.  But he only makes a Subvi.  If you pass a reference to a front panel indicator in a Subvi, it locks the front for some reason any?  I thought for sure, I had done this several times in the past without problem.

  I'll post not rather the VI publicly without more deletions.  Just the stuff company owner.  I wouldn't mind sending them to someone OR, however.

  

  

  Thanks for any help.

  It was apparently a transient state.  I arrived, open LabVIEW and the VI, and everything is fine now.  I don't know what that looks like, I am back and found a few nodes property overwrite values.  I promise you that I will not change anything.  I should have tried this yesterday, but it was the end of my day at that time and I had a place to be.

  If you want, bradyAE, you can send me your email address and I'll send you the VI, if you think it is useful to investigate it.  Like I said before, I would rather not post it publicly.

• 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.

• How to call the shading on the front panel?

  Hello world

  Quick question and I was looking for, but I couldn't find on the front panel, but I have a waveform attached where I apply shading to the area between the two lines of standard deviation (see attachments).

  I was told that I could call him shading on the front panel by right-clicking, but I couldn't find it anywhere. Can someone please help?

  Thank you!

  TheLT

  Under fill options, you can fill in between different graphics.  To get there the legend graphic or through nodes of inter-generational