Set priority higher for front panel events in a Structure of the event

Hey people,

I need some advice on the management of events in Labview 2013... I have a structure of the event which handles events of façade (keys) as well as some user events. User events come thick and fast from an external dll. The data as well as this event gets queued at the start and then traced / processed.

The tricky part is if there are great number of events of the user, the response to the event of the façade is significantly delayed. I get about 80 events back to back user every two seconds. So, if I press a button on the Panel before every two seconds (2 seconds, 4 seconds, 6 seconds... etc) is obviously the delayed answer as opposed to pushing in multiples of 3 seconds (3 seconds then 6 seconds, 9 seconds...) where the reaction is immediate.

Now I know labview 2013 supports two prioritres while generating events (high & normal) but the problem is in my case, user events come from a dll using the 'PostLVUserEvent' method that does not accept a priority. And I don't see a way to set a priority for the events of façade (keys).

Any thoughts on how this can be managed?

Thanks in advance, best regards, Abel.

The best solution would be to separate user and events of the FP in two independent loops, but I understand that this may be difficult if the two event classes operate on the same data.

Another possibility is to use two loops serialized, encapsulated together in a larger loop, each containing a structure of the event: the first, with a short timeout, would manage the FP events and could go out on timeout. the second would deal with all user events and would be forced to stop after a predefined number of events managed or, better still, when a quantity preset time has elapsed.

Tags: NI Software

Similar Questions

  • Front panel locked, but not due to the structure of the event

    Hi it LV community.

    I did a staemachine program that executes an oscilloscope (screenshot of a provided below... the State of the problem). I ran my program yesterday and it worked very well. Then, like a model, a dialog box opens and I just clicked on it in a hurry. now my front hangs as soon as I move the above-mentioned State "the Oscilloscope settings.

    As indicated, I have go a repeat loop that collects successive impulses of my oscilloscope and displays on the front panel (it works fine). In parallel, I have a structure of the event that makes the tail for the real-time feedback of changes to parameters that I placed on the façade (exodus of state change).

    Here's the problem: as soon as I State 'Oscilloscope Settings' using a Boolean button on the front panel for get me there, the front hangs... No event triggered by this point, and even if it did, I already deselected the "Lock panel until the end of the matter for this event" checkbox in the case where the structure menu.

    So WHY is my front lock now? Thoughts anyone?

    Read the detailed help for event structures.

    He urged that a single event structure serve in a VI. There are moments where more can be used effectively, but caution and a thorough understanding of the structure are needed.

    The problem is that you have several structures of the event in the various cases of the state machine and they are set to respond to the same events.

    When the button Set Oscilloscope, the structures of the event in the purchase Menu and home screen States receive the event. The two lock the screen, but only one of these cases may work. It can transfer control to the State of the Oscilloscope settings, but the other event responding to this same event structure maintains the locked Panel.

    The solution is not not to release any of the event. The default value is usually the best setting. The best solution is to spend on an architecture of producer/consumer (events). Who uses two parallel loops. The producer has the one and the only structure of the event and passes orders to consumer loop through a queue.

    Probalby want as the mechanical action on the buttons to lock when you press. Put kiosks inside the respective case of event changed value and local variables becomes unnecessary.

    Lynn

  • A7R HOW to ASSIGN DIFFERENT FUNCTIONS FOR FRONT AND REAR DIALS (only not on the position, but completely changed)

    A7R. "Front dial" and "rear dial.  In the menus, the operation of the front and rear dials can be changed between the shutter and aperture.

    BUT THE FUNCTION OF THE DIALS CAN BE CHANGED?  Example: I want the wheel before the shutter speed and the wheel back to be ISO.  Is this possible?  How to assign different functions to dials?

    The function of the dials are by default to the shutter speed and openness, and it is not possible to change. As an alternative, the camera has a fast browsing allowing you to quickly access common parameters and change them using the front dial featured. Please see the ILÇE-7R Help Guide for more information.

    If my post answered your question, please mark it as "accept as a Solution.

  • set of fax for HP Officejet Pro 8500 has more with the Mavericks BONES (10.9)

    Utility HP via a wireless network see Configuring fax correctly.

    Printer and scanner works fine.

    Under "Add a printer" in system preferences, the fax feature does not appear as an option.

    all functions has worked well with OS 10.8

    have transformed the firmware update 8/13 and reinstalled drivers 10.8 but found none for 10.9

    Any suggestions are welcome.

    Hello

    Have you tried updating your software for the Mavericks?

    If you run Apple Software Update provides with something new.

    Please try the following fix:

    http://support.Apple.com/kb/DL907?viewlocale=en_US&locale=en_US

    Under 'Add printers and Scanners', the device should appear with 'Fax' at the end of the model name.

    I hope this might help.

  • I have a question on the membership of your company. Currently, we have 2 licenses (I think), but may need more. We want to set up licenses for our office and would like to know the subscription fee has resulted.

    Currently, we have 2 licenses for creative cloud and need more. I wonder the cost of a subscription business. Can anyone help?

    To the link below, click on the still need help? option in the blue box below and choose the option to chat or by phone...
    Make sure that you are logged on the Adobe site, having cookies enabled, clearing your cookie cache.  If it fails to connect, try to use another browser.

    Creative cloud support (all creative cloud customer service problems)
    http://helpx.Adobe.com/x-productkb/global/service-CCM.html ( http://adobe.ly/19llvMN )

  • By default, Labview 8.6 places conventional controls on the front panel; Is it possible to change the default settings to modern or Express possible?...


    The default value is of modern controls and I always change to classic.

    I am classic and the classic controls are much easier to adapt to what I want.

    options GOTO and look along all tabs to find the place where the new vi is adjustable and modern controls by default

    But keep in mind only new i's, old vi must be changed in the properties of this vi.

    Guilbert

  • How to get AC 97 Front Panel Audio and Microphone ports to work with Windows 8

    I have a m7277c HP Media Center that uses the motherboard Asus P5LP-(Lithium-UL8E) and has an Audio Jack and Microphone AC 97 spec ports on the front panel. I tried to install the Codec AC 97 drivers for Windows 7 and they do not work for Windows 8. The 'High Definition Audio Codec"Windows 8 drivers only work for the Ports on the rear panel, not the Ports on the front panel.

    How can I get AC 97 Front Panel Audio and Microphone ports to work with Windows 8?

    Hello

    Your model has not been tested for the use of Windows 8.

    For this reason, HP cannot provide instructions to upgrade or Windows 8 pilots.

    Therefore, it will be very difficult to provide a solution.

    Thank you

  • front panel size between decoration

    Hi all

    Does anyone know if there is a way to size, a façade based on a decoration.

    for example, I have a front apnel GUI with a flat frame decoration.

    I spent some time tweaking the front panel to show what is inside the flat frame decoration.  I go back and change some stuf and repeat these optimizations.

    It would be cool if I could just put highlight the object of decoration and tell the VI to resize based on the decoration.

    I tried this VI-> Panel-> Decos []-> Index [2]-> MasterRect to set the FP. PanelBounds.

    It is assigned the same size as decoration, but not really where the decoration, see VI attached.

    Any ideas?

    -Sean

    You must set the origin of the part of the façade as well.

    But as Ian said, it is probably best to design your front and your decoration so that its located at 0,0 and place in upper-left corner of the window.

  • How can I change the value of a control on front panel?

    On the front panel, I'm doing a complex control that consists of a Slider control and control of the digital inputs. Both controls display the same information and either may be used for entry. When changing value, I want the other control to display the same value.

    How can I change the value of a control on front flap when another control changes the value? I know how to use a structure of the event to detect value has changed, but I do not know how to impose control on front panel to change its value in the block diagram.

    Why do you not use a digital display on the slider, and no code is required:

    EDIT: Yes, he said. ***

  • How to set a mouse on an icon event of

    Hello

    I set an icon for a Panel in my plugin. I want to replace the mouse during the event icon.

    The icon code is listed below.

    resources speaker (kDNDListsPaletteResourceID) {}

    {

    1 group in the list

    kDNDListsPaletteResourceID, / / resource ID for this Panel (use SDK by default ID rsrc)

    kIBPluginPluginID, / / ID of the plugin which holds this Panel

    #if CSVER > = 4

    kIsResizable,

    #else

    isResizable,

    #endif

    kIBClientPluginDNDPanelWidgetActionID, / / Action ID to show/hide Panel

    kIBClientPluginDNDPanelTitleKey, / / appears in the list window.

    "", / / Substitute the form menu path ' hand: Foo "If you want your palette in the second menu item to place

    0.0, / / menu replacing the position of the alternative Menu to determine the order of the menu

    kPlusIconPNGIconRsrcID, kIBPluginPluginID, / / Rsrc ID, ID Plugin for a PNG icon resource to use for this palette

    c_Panel

    }

    };

    Where should I give the other icon resource ID?

    As you have noticed these resource ID are the same. I use it to make the code more readable.

    Skip the part of the name of the resource change and just add define icon resources.

    And then it will work.

    you have a few samples in the SDK software where you can check the implementation of icons on panels

    NFSP (kPlusIconPNGIconRsrcID) resources '... / res/icons/PLUS_ICO_23_I.png ' / / inactive icon

    PNGR (kPlusIconPNGIconRsrcID) resources '... / res/icons/PLUS_ICO_23_A.png ' / / Active icon

    Bartek

  • Security of 2014 LabView front panel

    Hello.

    I am looking for web and this forum without success. Where is the Front Panel security in labview 2014. The Web for LabView 2011. Tools--> Security--> security on the front panel.

    I want to disable change a variable for some users. I create user... but do not have this option to FrontPanelSecurity.

    Can you help me... where can I find this Panel on labview 2014?

    The link you posted is for SDC. You can buy this and he license for LabVIEW, because it's an add-on.

    http://sine.NI.com/NIPs/CDs/view/p/lang/en/NID/209851

  • How can I activate on labels in the block diagram, but not on the front panel?

    This question may have been asked before, but searching the Forum did not.

    In LabVIEW 2010, I have 16 indicators of chain on the front panel. I can't have the label for each Visible on the front panel, so I turned it off. But in the block diagram, I need distinguqish one of the other, so I need to make the label (name) visible.

    In the block diagram, if I select indicators Sting all together and go to properties and make the label visible, it makes visible labels on the front but not visible in the block diagram. What good is that?

    How the help of labels (name) of the indicators String visible in the block diagram, but not visible on the front?

    dbaechtel wrote:

    This question may have been asked before, but searching the Forum did not.

    Don't remember already asked this question and get help in this thread?

    Have you tried the things I said in that thread?  How did they not work?

    Right-click on the terminal of BD and make visible > labels.

    It probably will be the FP control show its label as well.  Then go to the FP control, right-click and go to Visible > labels and uncheck the box.

    The terminal of the comics will have a label, and control of the FP will not.

  • display the error when editing on front panel

    Hello

     

    When I add another tab (notching amplifier) in the front panel, the program displays connection error. What should I do to get rid of these errors? I am attaching the file along the slot vi.

    Kind regards.

    This happens because the data type of the tab control changes (you add another page). A tab control is essentially an enum and enum values are part of the data type. A reference to the tab control control is to be packaged and passed in several subVIs. Cluster of frontage on these subVIs control has the element 'Hand Control' value "Include the Data Type". Thus, what they expect to see (for example, a tab with 3 pages) is not what they get. That is why the thread cut. You must either:

    • Uncheck "Include the Type of data" for the item "control of the hand. I don't know what other impact this will have, as I look at all the code.
    • Update all the controls on the front panel with a new reference to the command.

    Aside: who wrote this program needs a lesson on the typedefs.

  • Structure of the event with sub-panels

    Hi, I tried to find a simple example with a structure of the event and only two sub-panels.

    I found the 'new Event Handler.vi' and I'm doing something with two sub - vi I did 'Add.vi' and 'Mul.vi '.

    To be able to switch between the two sub-panels used in 'New Event Handler.vi', the programmer used a "time surge" which I can't locate

    anywhere, so I just copied 'new Event Handler.vi '.

    I can't get this to work.

    Take a peek inside the world

    Sincere greetings,

    Lasse

    Hi Lasse,

    Yes, there is. If you open the properties of the subVIs Add.vi and Mul.vi (Ctrl + I), you can change in the tab 'appearance of the window' to that custom... There is an option display front panel, when it is called and the close later while initially closed just sellect them. Then, you will have the effect of 'pop up' :-)

    I slightly changed the example, so that can see them in the form of pop-up windows.

    See you soon

    Angel

  • Application with several front panels

    Hi all

    I'm working on an application that has 3-4 fronts.

    As, when the application starts, the 'User profile' Panel appears. From there, I can go to 2 different panels.

    1 Panel is to take the new user data. another decision of the user test.

    I want to know is it advisable to display each panel of different VI or shud I have them all in a single VI and manipulate by making Visible property On / Off.

    Thank you

    Ritesh

    I think that the best way to do it would be using the control tab. Place all controls or indicators for each different "front panel" that you would have on the different tabs and then make the tabs visible/invisible. In this way, you have a contol/indicator to catch up. You could do a search for the creation of an Assistant in LV you would also benfit using a statemachine for this type of architecture.

    WOW, while I was typing the message there are 2 answers, all with pretty much the same answer...

    Great minds think alike!

Maybe you are looking for