structure of the event does not record local vars

Similar Questions

• Structure of the event does not clear the queue after his release from the Subvi

  OK I'm not sure if this is a stupid question or not...

  I was trying just a few tips and stumbeled on this problem...

  So I created a sample (not exactly)

  In qqq_Main.vi just press PressMe

  (it opens a Subvi qqq.vi)

  There are two buttons to stop "Alt1" and "pylone2".

  To close the Sub - VI press either on "pylone2".

  or press "Alt1", then "pylone2".

  with the latter method of the value of closing change pylone2 is registered outside the while loop and after the closure of the Subvi should not it be erased? (Or should manually clear us it?)

  For this reason not clear, the second time I press 'PressMe' change the value of pylone2 even goes off before you press anything

  I can't look at your code at the moment, but according to your description, it seems that the system works as expected. I guess you do a completely static record of events (open the event configuration dialog box and select the controls and event).

  The first thing to clarify is your use of the term "registered". In this case, it's a problem, because the registration in the context of the protests means asking to receive the event when it happens.

  Now that you know it's important to understand where the recording is happening, because that's what determines which events are stored in the queue. When you use this type of static record, registration happens from the VI the event structure is in run mode (Note: this does not mean that the VI is actually running, but just that it's the of running or reserved for the race) and the cancellation of registration only happens when the VI mode of execution. Who is right for which you get the events in the queue of the previous run of the VI - the VI is still in run mode, then the event is added to the queue and still waiting in the queue until the structure of the event to run again.

  You can work around something like that by switching to dynamic registration of events, where you can unsubscribe to empty the queue at the end of the VI, but requires more code. Also, in 2013 LV there are a few features added to events that could allow to do this statically (I don't study all the additions, so I don't know if this is possible for static recording).

  There is a good presentation on the events of NIWeek 2013 by Jack Dunaway. You can find details of how to download the video here - http://lavag.org/topic/16091-ni-week-2012-videos/

• Structure of the event does not not at the exit of a Btn dialog box

  Hi all

  I have here a simple VI. I want to blow a One button in the user dialog box. I want VI to wait until the user clicks on the OK"" button. When we click on the OK button the VI should pop another dialogue a button and stops when you press the Ok button. The VI does not stop. The value change event is not captured by the structure of the event. Can't really understand why.

  What OK button you are wanting to trigger structure of the event?

  1. as you have connected it the case of the event is related to the OK INDICATOR on the front panel.  You don't have an OK button on the front panel. The OK button in the dialog box is not easily accessible to the structure of the event.

  2. programmatically change an indicator does not raise an event to change the value.

  3. you can use a Value property node (signaling) to trigger the occurrence.

  4. There is almost always a better way to do what you want to use an indicator and a value (follow the signs).

  Lynn

• LabVIEW 2012 while the structure of the event does not stop

  I am LabVIEW 2012.

  An example of a while loop with the structure of the event inside can not be stopped with the stop key, Boolean.  Something wrong?

  Please see the attached VI.

  Thank you.

  Yes, something is wrong. You must add one for the event in order to detect a change in value on the stop button.

  The thing is now your structure for the event rest waiting for one of the event which she handles and ight now, it handles the "close panel" event, the 'timeout' event is too manipulated, but since you do not have anything related to the terminal of timeout (top left of the structure of the event) the timeout is - 1. So, when you run the VI the while loop is stuck in the first iteration and is waiting for a sign nearby, the stop button will only take into account after that same structure intercepts an event; I think it's because LabVIEW will execute the code related to the Terminal stop of the while until after the rest of the code that he has completed execution of the loop.

  Hope this helps

• Structure of the event does not run

  Hello

  I have a Board who I am control with loop open using a stepper motor system.  I want to run some tests to measure to what extent and how constantly the motor can move the stage.  How my software works is that I give the engine a position (number of steps), then it runs until it reaches this position.

  The motor itself and then I want to set up a structure of event so that I can give different commands without having to restart the program each time.  The three cases, I want to implement are:
  (1) giving the engine a new job to run

  (2) telling the motor home again

  (3) stop the program at any time

  I watched tutorials on the structure of the event and cannot for the life of understand me why it won't work.  The motor houses himself, enters the while loop and just stays there.  When I change the values, nothing happens.  Can someone help me understand this?

  Riche29 wrote:

  Thank you for the answers.

  Would not has to do with the fact that I do run my software on a myRIO and not my PC, doesn't it?

  Yes, yes it would be.

  The myRIO is an on-Board Unit and has no video output, and therefore is not a concept of events based on user input.  I've never used a myRIO but I figured, would not allow even you put code on the myRIO if we used a structure of the event, but I guess you can have user events so maybe that's why no error was thrown.

  The code runs normally on Windows where I tested it.  I had to disable parts of the House and run the routine because I don't have the myDAQ or myRIO software installed but the structure of the event worked as expected.

  As for the change of Position value, the witness must be in case of structure, not only in the while loop.  If it isn't then you will read the last value not a new one.  You were probably just changes to test things because in the images you posted it was in the case of structure.

• Simple example of narrow Panel? in the Structure of the event does not work - please advise

  I'm trying to implement a close interception single panel.   In the LabVIEW 2010 VI joint, I expect to see a dialog box indicating now 'close [filename]' which will then stop the VI but NOT closing the Panel.

  Instead, I see the program to run in to highlight up to the loop, execution mode then when I press the button window close Windows (X) in the upper right window of the façade, two program windows close immediately.

  Can someone tell me why this discrepancy? does not work?

  OK, this version works as expected.  I was able to find the reference 'this VI' to the title of the programming VIs and functions - functions and Application control screw - VI reference server.  (Not easy to find the help of LabVIEW.  I actually copied it from another VI.)

  It displays the message 'Now close [filename]' then put a Boolean True to stop the loop of the file.

  Thanks to those who pointed out I was making reference to an array of screws rather than a single VI.

  I think it is a very simple example that should be able to find by searching for ways to replace the narrow Windows file service.

• Instance of the DSO in the RAC does not record automatically

  Hello
  
  I have a problem with my installation/configuration of the CARS.
  Version 11.1.0.7
  RHEL x 86 platform
  2 knots
  
  2 separate homes: 1 for ASM, 1 for DB.
  
  Cluster & ASM are installed, patched and works very well.
  Except that ASM instance does not register the listener (on both nodes), even if I forced by an "ALTER SYSTEM REGISTRY;"
  
  
  [oracle@pes-ora-vm1 oracle] $ crs_stat t
  Name Type State target host
  ------------------------------------------------------------
  ORA... SM1.asm application ONLINE pes-ora-vm1
  ORA... M1. LSNR application ONLINE pes-ora-vm1
  ORA... vm1.gsd application ONLINE pes-ora-vm1
  ORA... vm1.ons application ONLINE pes-ora-vm1
  ORA... vm1.vip application ONLINE pes-ora-vm1
  ORA... SM2.asm application ONLINE pes-ora-vm2
  ORA... M2. LSNR application ONLINE pes-ora-vm2
  ORA... vm2.gsd application ONLINE pes-ora-vm2
  ORA... vm2.ons application ONLINE pes-ora-vm2
  ORA... vm2.vip application ONLINE pes-ora-vm2
  
  
  [oracle@pes-ora-vm1 oracle] $ lsnrctl status LISTENER_PES-ORA-VM1
  
  LSNRCTL for Linux: Version 11.1.0.7.0 - Production on 16-AUG-2011 10:56:35
  
  Copyright (c) 1991, 2008, Oracle. All rights reserved.
  
  Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST=pes-ora-vm1-vip) (PORT = 1512) (IP = FIRST)))
  STATUS of the LISTENER
  ------------------------
  Alias LISTENER_PES-ORA-VM1
  Version TNSLSNR for Linux: Version 11.1.0.7.0 - Production
  Start date 16 - SEP - 2011 10:43:22
  Uptime 0 days 0 h 13 min 13 sec
  Draw level off
  Security ON: OS Local Authentication
  SNMP OFF
  Parameter Listener of the /orabin/app/oracle/product/11.1.0/asm/network/admin/listener.ora file
  The listener log file /Orabin/app/Oracle/diag/tnslsnr/PES-ora-VM1/listener_pes-ora-VM1/alert/log.XML
  Summary of endpoints listening...
  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=172.30.42.18) (PORT = 1512)))
  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=172.30.42.16) (PORT = 1512)))
  The listener supports no services
  The command completed successfully
  
  
  The pmon process seems to be OK:
  
  [oracle@pes-ora-vm1 oracle] $ ps - ef | grep pmon
  Oracle 16020 1 0 10:43? 00:00:00 asm_pmon_ + ASM1
  Oracle 26996 7029 0 11:03 pts/1 00:00:00 grep pmon
  
  Here's my listener.ora (from ASM House):
  
  [oracle@pes-ora-vm1 admin] $ cat listener.ora
  # Listener.ora.pes - ora - vm1 file network configuration: /orabin/app/oracle/product/11.1.0/asm/network/admin/listener.ora.pes-ora-vm1
  # Generated by Oracle configuration tools.
  
  LISTENER_PES-ORA-VM1 =
  (DESCRIPTION_LIST =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP) (HOST = the SLB-ora-vm1-vip) (PORT = 1512)(IP = FIRST))
  (ADDRESS = (PROTOCOL = TCP) (HOST = 172.30.42.16) (PORT = 1512)(IP = FIRST))
  )
  )
  
  
  
  
  My questions are the following:
  -Why ASM is not able to save the aumatically?
  -Can you confirm that it is not necessary to static information on ASM in the listener.ora, due to registration in the service?
  
  Thanks in advance for your help,
  
  Yann

  Hello

  If you want ASM to register with you look, best is to lead the "LOCAL_LISTENER" parameter to your look.

  However pre 11.2 ASM instances will record with the status "BLOCKED", so you won't be able to connect to this service.

  The only thing I see your output is, that ASM is not with the default listener.
  Normally if you install RAC and ASM it will automatically record a listener (with the name listener). So maybe that's the ASM registers with the default listener on port 1521.

  Concerning
  Sebastian

• When the perforation in the logic does not record pre

  Using logic 10.2.4

  I have implemented punch and punch the locators.  I play with the track and making punch.  Logic doesn't store any roll before... .in other words if I try to expand the newly created region a little more early to catch a truck or something thing I got at the beginning, nothing is there.  I know logic is supposed to check in at the beginning just in case... there at - it a setting I'm missing? I tried the pre roll record and set at 6 seconds, but still nothing at start is saved before punch to the point.  Same thing in lieu or in creating records of decision-making.

  

  The count and record Pre Roll above are mutually exclusive. They do not define how at the beginning of the recording begins, but rather where the playhead is set before the start of the recording. If you have a 2 count together bar and position the playhead at 10 bar, and then tap Save. Logic moves the playhead at bar 8, start playback (if there is something to play) and begin to check in at 10 bar. If you select a period of prefetching in a few seconds, the playhead will jump back 6 seconds instead of bars. Neither defines the amount of pre-roll advertising in the in the recorded real audio.

  Auto Punch in is exactly that. When the recording start / stop. There is no registered pre-roll advertising. If you want the extra recording time before or after, then stretch the autopunch bar to make room for the start of start or end at the end.

  You can also use take folders that might be a suitable replacement and allowing campers of any part you want.

  Exception to this rule the there is one and will achieve exactly what you want - but it does not work with automatic punch. It is the punch on the fly...

  prerequisites - you must have "quick fist blow" activated.

  Press play and internally logical starts recording the moment where you press play, when you're ready to punch in, press R and you start recording, when finished, press stop. Logic recorded a region between the points where you started recording and click on stop. However, logic actually starts recording (under the hood) from the moment where you supported the play button, so if you look in the project tree, you can see the entire audio region with only set it collecting points as the region.

  It's only this case that allows you to develop the region in time to include a part any audio region that was "pre" set registration points. It is in fact will contain the entire audio file as soon as the room was pressed to stop, even with quick punch point defined further in the song.

  So say you have 10 bars - you start reading at the bar 1 and 5 bar you quick punch in bar 7 and you punch out. The defined region will show 5-7 bars, however if you develop the starting point of audio regions to the left - you will find that you have saved in fact all the way back to bar 1.

  Sorry, this feature is not available if the autopunch is the method of choice.

• user-generated event does not record

  I am having trouble with a user-generated event and hope that someone else has seen the same thing. I'm running LV 9 SP1, with a pretty standard structure of producer-consumer. The producer is event-driven and sends orders to the consumer based on the queue via the queues and the consumer information going back up the producer via the events generated by the user. In most cases, this works perfectly, but in a situation the event generated by the user is not registered by the structure of the producer of the event.

  The problem arises when the producer to place an order for the consumer advertising immediately generates an event. When this happens, the event is usually not treated by the producer - maybe 1 to 100 times the event is considered by the producer. My guess is that the user event is generated before the producer has completed execution of the event structure case who entered the command line of the consumer, which means (for some reason any) he'll never respond to the event. This suggests that event LV structures will not meet created events while they are running. Is this the case?

  I got around the problem by adding a 10ms before generating the user event (to allow for the case of the event at the end of the performance), but would really rather solve the problem if possible. Any suggestions?

  Thank you

  Baymen

  Thus, you do not have the result of the event of registry which contains this loop connected to any other other event that the loop of producer is correct?

  My first guess is that you raise the event and there is a State of race on the event and a loop is getting there faster than the other.

• Send the event does not

  I am trying to send my data class event when the data has been changed using the logic below. I've reproduced my problem below in a sample application based on one I found on a blog, I've created. I use a click on a button to call the dispatcher of events for the event class, but the main class of DispatchEventDemo does not seem to raise the event.

  When I put an instance of the DispatchEvenExample class in the FormWithButton class, it works but only within the same class (if uncomment the addEventListener method in FormWithButton).

  What I'm doing wrong? Is it because I'm dealing with the wrong instance of the DispatchEventExample? I think I need an observer model configuration...

  package
  {
  import flash.display.Sprite;
  import flash.events.Event;
  import flash.events.MouseEvent;
  import flash.text.TextField;
  import flash.text.TextFieldAutoSize;
  import flash.text.TextFieldType;

  SerializableAttribute public class DispatchEventDemo extends Sprite
  {
  private var _dispatchExampleispatchEventExample.
  private var saveBtnPright;
  private var myForm:FormWithButton;
  public void DispatchEventDemo() {}
  _dispatchExample = new DispatchEventExample();
  _dispatchExample.addEventListener ("Will", onEvent, false, 0, true);
              
  myForm = new FormWithButton();
  this.addChild (myForm);
  }
  private void onClick(e:MouseEvent):void
  {
  trace ("Click");
  _dispatchExample.sendEvent ();
  }
          
  private void onEvent(evt:Event):void {}
  trace ("_dispatchExample dispatched an event");
  }
  }
  }

  package
  {
  import flash.utils.Timer;
  import flash.events.TimerEvent;
  import flash.events.EventDispatcher;
  import flash.events.Event;
  import flash.display.Sprite;
      
  SerializableAttribute public class DispatchEventExample extends EventDispatcher {}
  private var _timer:Timer;
  public void DispatchEventExample() {}
  }
  public function sendEvent (): void
  {
  dispatchEvent (new Event ("will"));
  }
  }
  }

  package
  {
  import flash.display.Sprite;
  import flash.events.Event;
  import flash.events.MouseEvent;
  import flash.text.TextField;
  import flash.text.TextFieldAutoSize;
  import flash.text.TextFieldType;
      
  SerializableAttribute public class FormWithButton extends Sprite
  {
  private var saveBtnPright;
  private var _dispatchExampleispatchEventExample.
  public void FormWithButton()
  {
  _dispatchExample = new DispatchEventExample();

  _dispatchExample.addEventListener ("Will", onEvent, false, 0, true);
  saveBtn = new Sprite();
  addChild (saveBtn);
  saveBtn.x = 190;
  saveBtn.y = 10;
  saveBtn.useHandCursor = true;
  saveBtn.graphics.lineStyle (1);
  saveBtn.graphics.beginFill (0xcccccc);
  saveBtn.graphics.drawRoundRect (0, 0, 30, 20, 5, 5);
  var saveLbl:TextField = new TextField();
  saveBtn.addChild (saveLbl);
  saveLbl.text = "Save";
  saveLbl.selectable = false;
  saveBtn.addEventListener (MouseEvent.CLICK, onClick);
  }
  private void onClick(e:MouseEvent):void
  {
  trace ("Click");
  _dispatchExample.sendEvent ();
  }
  private void onEvent(evt:Event):void {}
  trace ("_dispatchExample sent a test of FormWithButton");
  }
  }
  }

  I think what you need here, it is a singleton class. you create two instances of the object and add the listener to these two different instances. so when an event is being shipped via an instance your application is listening for the event to another instance then its never read correctly.

  Here is a link to a post that jtegen posted there on singelton classes:

  http://supportforums.BlackBerry.com/T5/Tablet-OS-SDK-for-Adobe-Air/going-back-to-main-page/m-p/71241...

  in this case, the singleton is the DispatchEventExample class.

  using the method htat and attach your headset to the same instance, it should do what you want it to do. Good luck!

• structure of the event recorded does not change value

  I have a VI that communicates with an FPGA via a telnet interface.  I have several Boolean controls on the front panel.  When you click a control, it sends a write command on the face i in telnet to the FPGA.  Similarly, if a process in the FPGA himself wrote the same registry (that control written when I clicked on it), an order is generated in the FPGA and returned to the VI and the control (via a local variable) lights or unlights accordingly (based on value).  In other words, these controls are read-write...

  It's all workers, except for one important thing.  I have the code that runs through a structure of event whenever the value of the control changes.  I can see that this code executes in fact when I click on the control via the front panel.  HOWEVER - when something is generated in the FPGA finally changes the value of the control, the structure of the event does not, even if I see the value of the change of control on my front.

  A specific example, I have a control named CLIENT_LB.  When I click on CLIENT_LB, I see it lights up, and I see the event structure code run.  Now, if I have the FPGA process to set CLIENT_LB to 0, I see unlight on my front, but does not run the code structure of the event.  I have probes in place who have checked the associated local variable CLIENT_LB evolving impact of values.  The structure of the event reads: 'CLIENT_LB': value change.

  Shouldn't an event structure "value change" run when the value changes, regardless of whether if it happened manually (i.e. me by clicking on the control) or automatically (i.e. the FPGA written in VI and changes the value of the control)?

  The VI is great, and you would not be able to test it in any case unrelated to the material, to remedy that I've attached 2 screenshots, I have described below.

  1. This is where the string from the FPGA analysis occurs.  The chain between the sub - VI, and then the data chain part is hidden to determine if the Boolean value of the control is true or false.  I put a probe on CLIENT_LB, and I see that as the FPGA changes the value of the register, CLIENT_LB passes from false to true as a result.  I checked this several times.

  2. it is the structure of the event.  This code runs when I click on CLIENT_LB on my face, but does not run when the peak CLIENT_LB #1 local variable is changed.

  Writing to variables never fires events to "change the value. If writing should raise this event, use the property "Value (follow the signs).

  Norbert

• 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.

• 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.

• Doubt in the structure of the event

  Hi all

  I am developing an app for my instruments that is user interfaced.i am new do VI architecture. In my program I use architecture producer and consumer, structure of the matter and structure of the event. In this framework programme first four are working properly, but the fifth framework structure of the case does not good. I have attached my program then please read it tell me what I did wrong?

  Thanks in advance

  Here is an example. Sorry, the pattern is a little messy.

• value chain control event does not trigger change

  Hello

  I am trying to scan a barcode with a barcode usb HID scanner. I use a structure of the event to detect the change in the value of a control of the chain. When I scan the barcode, the chain control updates on the front panel, but the event does not fire until I left on my mouse on the front panel. can someone help? See attached vi

  Your barcodes are probably fixed length. When you get an event, check the length. If it corresponds to the length of the barcode, then process the data, otherwise wait for more characters.  This can be treated very quickly in the case of the event.

  Lynn