Similar Questions

• Outsourcing of the controls on the front panel for a panel floating Subvi

  Hello!

  I already found a few similar topics, but I still don't know which is the best way to solve my problem. I will try to describe my problem in detail first: I have a main VI that acquires data from a device and displays these data in a large waveform graph. I have also a few controls on the front panel to control my device. First, I placed all of these device controls (digital, sliders, etc.) as well as the chart inside the front of my main VI. However, due to limited screen space now I would like to make the largest possible graph and so decided to "outsource" some controls out of the main façade of VI to several panels front-end Subvi.

  I would then press a button in my main VI and it would open the Panel before the floating of the Sub - VI corresponding with outsourced controls when required. However, everything must be absolutely transparent. It is important that floating panels to run in parallel with my main VI, that is the main VI must continue to operate. That way I'll have my data constantly updated in the chart in my main VI while I can change some settings of the device through the controls placed in my SubVIs. These changes will be immediately applied (for example as soon as the main VI calls this slot - VI in its main loop).

  It is important to the visibility of the outsourced optional control panel, i.e. If the Subvi front panel opens with the user that it will pop up and the user will be able to change the paramers device using the. But then the user should be able to close the front panel (hide) the Subvi to see the entire chart again without the Panel floating in front of her (of course control values must be maintained when the Subvi front is not visible). Then the new button is pressed in the main VI that opens the dialog box not modal Subvi containing controls and it can redefine new values of device.

  Advice how to do this are welcome. I don't know if I need something complex like VI server or asynchronous screws or I can solve my problem by changing some settings simple Subvi? Thank you in advance for your help!

  Best regards

  Anguel

  AStankov wrote:

  How about using a global variable for the VI at VI communication instead of a queue?

  A global variable will, also.  Write you in one place and read the value frequently to somewhere else (in the election). So you can see easily to any value change.  However, mark will waste a lot of time processor.  This is why I have proposed to use a queue or a notification utility.

  AStankov wrote:

  Would be the last option that you mentioned, i.e. finish the Subvi at each change of value, I would keep the Subvi front open as needed until things from the user to hide? Or would there be inevitable flickering Panel or any other drawbacks?

  Yes, the Subvi can keep the façade open until the user closes. And there should be no flickering.  The biggest drawback I see right now is that when you expect an event in the Subvi, the mainVI cannot stop without talking to the Subvi to stop.  So you'll need another channel of communication (again a global, a queue, a declarant or an event) to tell the Subvi that she must stop.

• Disabling the controls on the front panel

  Hello

  Currently, I am working on trying to disable/gray out between 10-20 controls on the front panel when you press a start button and then allowing them the end of the test. Currently I use the property nodes, all of which are connected to a constant of the State in which I want that works perfectly. My question is that there is another way other than having a bunch of knots of padding property to the top of my structure of the event. Ive read where people had Subvi, which has used references to make this same feature, but is there a way of doing things in the block diagram of my current VI? Thank you!

  Need references of your controls on the front panel, so this can be fast, because you can select more than one, and with a right click you create references.

  I have attached a version LV2010.

  Edit: another review:

  Must be created only once these references. Usually, it's comfortable group all the references in a cluster, use this thread through your entire code. This way you can just ungroup references to the actual location, you have to play with, put them in a table and use the above FOR loop to change their properties...

  Like this:

  

• Controls on the front panel does not work

  In the attached vi (I've stripped down to simplify things), I have a problem with the controls on the front panel does not when you click on the control to acquire it. It of probably something obvious but got me to loss.

  Thank you

  It is probably because you are in the State to acquire until you're done absorbing.  Meanwhile, none of your other events can run.  You have events to acquire: let the mouse.  There is a setting for "Panel before locking up the end of the occurrence of the event.  Given that the event cannot process until your State acquisition is completed, the façade will be locked.

  I would recommend another loop for the acquisition of your data.

• 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).

  

• How to add a record button on the front panel to save waveform data

  Hi, I'm new kind of LabVIEW and I worked on a code for an agilent oscilloscope communicate via GPIB and so far it works well on the collection of these two analog channels one by one, "Not UNLIMITED" but it does the trick (vpp, Vrms, frequency, etc.).  I've added the feature to add data to a .csv file waveform (problem: opens a dialog box until the user gathers all the data.) Solution: I want the user to save the. File CSV whenever he wants to use later on the front panel). I've added another feature to get a snapshot of the curve waveform (problem: opens a dialog box.) Solution: I want the user to save the JPEG file, whenever he wants to take a snapshot ("take snapshot" button on the front panel)).  I work with the agilent hp54645d driver. I have attached my code, if someone can tell me please how do I do this (maybe cabling and structures are solutions do not know). Thank you in advance.

  I would recommend adding a case structure just around the two record VI and a button to check the condition of the structure of each case. If you want a button to control both save functions you can put the two record functions in the same structure of business controlled by a single button. You are right in saying that the loop will cause your code runs until the stop button is pressed or until the stop condition is met. If you are wanting the while loop to stop once the recorded information you can use the button that you use to control structures case to also stop the while loop. I hope this information helps.

• Best way to reset all controls on the front panel except one?

  Hello world

  I have an interesting problem, whereby I need to run successive tests using a test station which has several indicators on the front panel. At the end of each test, I need to reset all to default values, with the exception of a control (Test ID) who needs to keep his information - its value is used in an initialization status for test to ask for information from a database, so it can not be reset with the rest controls.

  I post all orders at a time using a reference ThisVI and VI Default Vals.Reinit All method, but this will obviously reset my control values (Test ID) as well. Any suggestions on how to keep properly or may store this information control while resetting all others. I can reset individually others but there is a little and more can be added as this system is developed.

  I don't really know what is the right way to proceed, and Labview has maybe one trick in his bag that I know to work around this problem.

  Thanks in advance for your suggestions,

  Alex

  Flank the node invoke with two nodes in the value property of the control to maintain the value. To the left we read as well as a right and the wires together. Connect three nodes with a thread of error to establish the order of execution.

  First reading place value on the wire, which is then written after the values have been reset to the default value.

  

• 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

  
  

• missing controls on the front panel

  Hello

  I'm getting a GUI and I'm having a problem with the front panel, I saw miss some controls:

  See the attachments, please.

  
  

• HOW TO MAKE DATE VISIBLE CONSTANTLY TO THE POINT WHERE IN THE NOTIFICATION BAR?

  I know that the date appears when I hover over the time. And I noticed that if I develop the width of the notification bar, the date will appear. But I don't want to do the bar is wider. I want just the date to display next to the time. I also know that I can go into customize Notification icons. HOWEVER, there is no icon to select which corresponds to the date display. (In a screenshot of another list of users, I saw a globe-type icon corresponding to the date and time display, but is not on my list.)

  I'd like your help. :^)

  Peace,

  -Virginia
  http://www.IMDB.com/name/nm0403825/

  Hello

  You said in addition to the clock so I initially think not that you need it however, others have
  said it would be a good idea to show this method of date display. Also if you are moving
  the taskbar vertically then the date is also displayed.

  Always see the day, date and time in the taskbar
  http://freewindowsvistatutorials.com/meetWindowsVista/taskbarAndSystemTray/showDayDateAndTimeInTheClock.php

  You can increase the highest taskbar - right click it - uncheck lock the taskbar then High grad
  He and raise more high and the date which will be under the clock.

  --------------------------------------------------------------------

  I found a utility that makes T-clock - free - 3 references to it:

  Windows7 like clock on the system in Vista & XP tray
  http://www.tothepc.com/archives/Windows7-like-clock-on-system-tray-in-Vista-XP/

  TClock: See the Date Look like Windows 7 & time in the system tray in Windows XP and Vista
  http://www.askvg.com/tclock-show-Windows-7-look-like-date-time-in-system-tray-in-Windows-XP-and-Vista/

  T - Clock of the Stoic Joker
  http://www.greggdeselms.com/tclock.html

  I hope this helps.
  Rob - bicycle - Mark Twain said it is good.

• 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.

• Update the controls on the front panel producer consumer

  Hello

  I wanted to ask you a few tips.

  Usually, when I implemented a consumer producer I use producer to create items from queue whose state of the enum and pack all the necessary data in the process of the event in a Variant.

  Then the consumer does all the work.

  There are two areas where I feel that I could not be using the best approaches...

  (1) when I need to update a control on front panel I Pack a reference to this control on front panel in the variant in order to access the property nodes in the consumer and to update.

  I have attached photos with an example. It's simplified code where the user must perform a task of data acquisition in the analysis of certain parameters. The code increases the setting of a fixed amount to each race to help the user in its sweep.

  Is there a best way to do this?

  (2) when events require the same control to be plugged into the variant for the handling of the loop of consumer I create local variables or references to this control to other events. Would it be better to have a registry change that crosses the loop producer which gets updated values of façade at each time the loop iteration?

  Thank you.

  Because you use a loop of events such as the producer, I would use user events to update your controls.  This way you are not circulate references just to set/update a control.  You can make a user event and handle this event with the structure of your event.  Your client sends just the event with all the necessary data.  I found this configuration really useful since it retains all the GUI code centralized in a single loop.

• Detailed help for the controls on the front panel

  I can't help sensitive to context or detailed on the controls in the Panel before LabVIEW help. Why this does not work in LabVIEW?

  I have trying to find detailed help about the ring of text.

  In the finder of the example, search for "rings."

• 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

• How to make a visible line in the background object?

  Hello

  I have a new for Adobe products, lately I've been experience the same problem with the visibility of the object.

  On the left, I used the line tool to draw an additional line to add features, I think it should be a better way to make objects of the visible background. On the right is how the subject looked before. What other ways to make the lines visible without drawing?

  Enjoy

  

  The top image is made with objects that have a fill and stroke. Filling blocks the features below. The bottom image is done with suddenly, then grouped objects (Cmd (Ctrl) g). The appearance panel shows the new filling added to group objects and settles below the content.