Structure of the multiple event

Similar Questions

• structure of the 2011 event

  Application development in 2014 LV using a Structure of the event. The target system is running LV 2011. The Structure of the event seems to run on the target system, but it only allows me to make changes to the Structure. Right-click on it, and the menu is not the same in 2014.

  What could be bad

  Bob

  Thank you, they perform the basic version.

  Bob

• Structure of the Query event

  I want to create an event that meets a button on my front and a text entry area that tells the event how often to repeat the code that is inside where I've specified.

  The event must start executing the code as soon as the button is pressed and repeat the event for example every 100mS until the key is released.

  If anyone has any ideas, I'd be happy to hear. I use LabView 7.0

  

• Can I use Ctlref in a structure of the event with a mouse to an event?

  I have a large number of controls on a front panel. I use a structure of the event that triggers the movement of a given motor when you press the corresponding button. However, I would like to avoid creating events for identical most of N, so I relied on the use of a mouse down on the front panel event, then retrieve the reference command using the Ctlref node (with gives 'Reference to the control on which the event occurred', according to manual labview) and analyze an array of references to know which engine is supposed to move. However, it seems that this node is not (contrary to what the manual said).

  I found other ways to do what I need (I thought using a table containing details of my controls and the coords in the structure of the event node), but I wanted to know why I can't find this node (that is displayed for the event "value change" for example). I'm using Labview 2013.

  No luck for you. Mouse down on the Panel does not have the refnum control because it does not work on a control. Mouse down on a control has it, and since you can configure the mouse down events on multiple controls in the same case of event, it also provides a refnum of control so that you can still use the order in question.

  This is probably also the question that Jeff might have seen. When you set up multiple events for the same frame that LabVIEW displays only the terminal event that are present in all of these events. Terminals that do not exist in at least a specific event of the multiple events for this image are more selectable.

• How to manage the structure of the event with two loops

  I have a question about the structure of the user event with 2 buttons?

  key 1: START LOGGING DATA

  key 2: STOP LOGGING DATA

  How do I control my

  structure of the event so that it will work? because now that the loop is save data... I can't stop the loop, when I clicked on buttons.

  

  

  

  super_saiyans wrote:

  the problem with moving it is that I don't have control of the DATA RECORD STARTING?

  Of course, you do.  When you get your press conference button, you say your state machine to move to the State of logging.  You must also make sure that you return to visit the State to wait for the event to check out the events of the stop button.

• Time-out in the structure of the event

  Hello

  I try to configure the time-out period in the structure of the 5s event using the loop, as shown in the picture as an attachment. The problem is that this time-out event occurred only when I code debugging and does not happen when I run the same without debugging. Any suggestions on this?

  Thank you!

  OK, just use VISA Read to read the first three octets.  Then do another set VISA Read the number of bytes defined in dlen.  If the data does not, then you will get a VISA expiration time.

  

• a few seconds "turn on", how can make I make in the structure of the event

  Hi, friends of LabVIEW

  I want to leave user click and hold down a button for a few seconds to turn on a device. Using registry item and history of shift I can make it work. I wonder how to implement it with case and structured event. Which case should I choose? mouse up?

  I have attached the test code as well.

  Thank you.

  

  I'm sure there are a lot of possible solutions, but here's a way to do it with a structure of the event. Mechanical action of the button is "Switch release." Pressing the button disables the output and sets the timeout of the event at certain time structure. The timeout event switches the output to true. Any other event resets the timeout to-1 value. Unfortunately, it seems that the tool gets messed up the image, so the VI is thus established.

  

• can I use a structure of the event in another structure of the event

  Hello

  Can use a structure of the event in another structure of the event?

  Thank you

  Viviane

  I would put your waveforms in the registers at offset.  You can then use your structure for the main event to trigger on the Show 1... the value change events and process the data, however you need from there.

• Structure of the event to local variable

  Hello

  I use a control structure and the table event to detect changes in the value of table.

  At the beginning, I have made changes in the table (for execution) and structure of the detected event.

  The next step was adding a parallel while loop in which I write for the control array (using the local variable).

  During execution the layout of the table changed indeed, but the structure of the event is a not detect it.

  I have attached 2 digits: 1) loop of the structure of the event 2) the parallel loop.

  It is possible works in such a way?

  How can I make the structure of the event to detect changes in the software in the control array?

  Thank you

  Leonid

  Changes made via a local variable are not the user events, so the structure of the event will not detect by definition. You must write to the command by using the property node "Value (follow the signs).

  That said, your small watch of your code starts to raise red flags in my mind with the use of variable and global variable local. While it's not bad, their abuse can lead to the poor programming architecture and race conditions. Perhaps you should consider downloading your VI any kind can someone take a look and offer suggestions on improving it.

• Many events in the structure of the event

  Hello

  My GUI application have increased over time and the structure of the main event now contains upward 150 events triggered GUI, mainly buttons both autonomous and in custom controls.

  The performance of the application are no problem but I experience occasional freezes the application that freezes everything just the GUI and what I suspect most code running in the background. It is cleared by clicking anywhere on the front panel of the application and the same problem occurs in the development environment and in a bed .exe. To clarify, the application not falling down or stop, it all simply pauses or freezes and then resumes execution when the mouse click occurs. This happens randomly and at least a few minutes between.

  I'm currently trying to track down the problem but thought id ask here if someone has experience of first of all structures of the event which handles a large number of events, or perhaps seen the same freeze happen in their application?

  Nimgaard wrote:

  With regard to a large number of events managed by a single event structure that I have not really looked into what limit would be, but somewhere under the hood of the code have to watch these GUI controls. On the other hand I have not problems of performance if...

  There is no watchdog, which could keep the change control, it is all managed by WinAPI, the application is just get it registered to receive messages.

  The mouse click event or change of key value chain from interruption managed by the driver running at the kernell windows level.

  Basically, the computer, if there is no user activity, consumes much resources from the PC to the active window with no event regarding the active window with many events.

• Structure of the event without user interface

  I tried a quick and effective solution for a structure of event that is not a case of timeout and is part of a vi that has no user interface, but I have sent configuration data to the structure of the event.

  Let me be more clear: I have a camera that generates several events taken by a loop with the structure of the event inside.

  The provider of the camera give me this example of Labview code with all the events I'm interested and how they are implemented. I should mention that when you write a command of camera that a response to an event, but when you connect first to the camera there are more than 100 events generated by the latter, or when you download camera there are also several events. When there is no communication to the camera, the structure of the example event is inactive. The example includes a user interface to change settings and the program responds very well.

  I have to integrate this camera in great demand in which camera photo will be configured in a pragmatic way with number of the type of user interface in the example given by the manufacturer of the device.  First, I tried to design a loop with timeout cases in which a queue can send the data to the device setting configuration. Everything is good until the download when code needs to hold events in a certain way; in my case, an event is taken another goes to the time-out period and so on. After two sets of 100 images download, during the third round Labview gets blocked (Labview not responding) and I have to kill Labview. I got designer of the camera that if camera events are not taken they are kept on a pile and when the battery is full causes the Labview locked.

  Maybe I give too many details, but the question is: how to communicate with a struct event that is not a case of timeout and does not part of a user interface vi (it doesn't have a sign in my application)?

  Oops... Sorry about that.  I've attached an example what I'm talking about here.

  -Austin

• More than a user sources for simple event structure of the event

  I have five different sources, I want to use to generate the user events using the structure of the unique event, acting as a producer loop. Is does not seem to be possible to use five different sets of create/generate user for a single event events structure and the structure of the event does not have the ability to add dynamic event hydrants more than once. Is it possible to do this by using the events structure and user event

  Kind regards

  Austin

  And again in LV2010, (good guess?)  I think this is what you need.

  Michael.

• multiple messages from several loops in the structure of the event

  Hey guys,.

  I have two questions, first of all, what is the best way to receive messages in case of structure? I've been watching the user events, and which seems to be a good option if I want to never send a single message. Ive never found an example where the regester for events has a second event its looking. I currently use queues to the structure of the event to my other loops.

  My second question is I want to even send messages to the structure of the event, my current thinking is that it would make things easier to follow if the structure of the event sent all messages to the individual lines. Is it more appropriate to have just a loop of talk directly to one another through the queues already in place?

  IM thinking ill put in place a user for handlng errors event but I'm not sure on other messages.

  Thank you guys

  You can get events for individual events. Better yet, you can use clusters to group the different events and access them individually (see below).

  

• Simulate the structure of the event in the LabVIEW base?

  I have a basic version of LabVIEW (v8.6) who doesn't have the structure of the event. I found it was quite embarrassing monitor the status of several controls (action after clicking a control depends on the State of the other control (s)). Especially if I want to add another function (control), the effort exponentially increase with the current number controls

  I had an idea to simulate the structure of the event using "shift register. First, I will provide all the values for the controls in a cluster. Then I'll put the cluster in a while loop and compare the value of the cluster to its previous value (xor the registry change). If the result of the comparison is false (none of the control is changed), the program moves to the next iteration. If the XOR result is true (one of the control has changed), then the program goes into code (it will pass what control has changed and the entire cluster) event management. So for each change of control, we can write an independent code to process the event. After processing of the event, the event was allowed.

  Here are some of my ugly code currently used to monitor multiple controls. And I think rewriting using above idea so there is less chance a hiden bug.

  Comments, suggestions?

  I'm not quite sure what I'm looking for on your photo of your block diagram because it seems that only the lower quarter right in your code.  I would do the following to detect a change in a cluster without the structure of the event control:

  

  The basic package include the notifications than us?  You can put your "event management" in another thread by this method:

  

  The advantage here is your main loop of the program is not "bogged down" every time that a change in your cluster held.  It also allows to separate the code so that it is cleaner.

  Hope that helps!

  -Fisher

• Several events in the Structure of the event

  Hi all

  I was wondering if there was a way to combine with the operator AND user events to an event. For example, I would an event when button1 AND button2, AND button3 were pressed. Mabye event strutures are not the right way to do it, but now when I add multiple events to an event framework, it seems to happen when one of the events is triggered, as event1 OR event2, OR event3 and I can not understand how to change that.

  I hope it makes sense what I want to do. I Nestle my structures of the event, but I'm sure it is bad and would give unexpected errors. Please notify.

  Thank you!

  Use a shift register and maintain States whose keys were pressed. Then, you can actually run code you want once all have been pressed. If you do this you afflicted to a timeout to clear the buttons not pressed state if only one or two have been pressed and nothing more certain period of time.