Clear any open task daqmx

Similar Questions

• DAQmx Open task request

  I created two tasks and assign channels programmatically.  This happens in my vi initialization.  I am looking for common tasks programmatically so that I can close them all in my close vi.  I tried the DAQmxSystem property node - tasks, but it only gives me the tasks that are saved in MAX.  I have created my task incorrectly?  Without having to store the open tasks, is there a way to get a list of open task?  My boot VI is attached.

  I figured this out.  I added the SaveTask vi to my vi initialization so that task appears when I query using the property node.

• After the race VM Workstation - remove the key opens "Task Manager"

  Hi all

  After using VM Workstation (use open then exit program) any time I hit the key Suppr - the Task Manager appears.  I can restart my machine to eliminate this problem. Function clear ideas on how to remap the key to its original?

  have you tried hitting ctrl + alt before leaving the vmware customer?

  http://ServerFault.com/questions/99196/after-running-VM-workstation-delete-key-opens-Task-Manager

  StarWind software developer

  www.starwindsoftware.com

• Missing reference to task DAQmx

  Hello

  I have just inherited code without papers of an engineer who has left the company.

  We use a USB-6008 to control a stepper motor and take a few analog readings

  DAQmx tasks received really useful names such as "TO 0", guess that's Digital Out"0  However when I look at the tasks of the unit, "0" is not present. ""

  The program crashes and complains of an error.

  Is there something I'm missing here?  Y at - it another way that a string that "DO 0' culd be associated a task DAQmx?

  Rgds,

  Sean

  OK, I had a legacy project open.

  Virtual channels are in the new project.  I was looking everywhere on MAX, but it was in the project correct throughout.

• How can I get a graphic display in real time of a task daqmx

  Hello

  I have set up a task DAQmx using the DAQ assistant and the task is to work and produce a graph/data, but not before the task is complete. How can I get a display in real-time of the numberical values or graphics?

  Any help would be really appreciated

  Thanks, Paul

  paultryan wrote:

  I could get set the frequency of sampling and to give a regular change of output, but im looking to get this long-term data acquisition. For example, the graph changes everything but 1 - 5 get 30 minutes of data.

  I used the DAQ assistant and labview is completely new to me, if im not sure where it take it from here.

  concerning

  Then you should use a chart - not a graphic. A graph has a story. You must set this. Right click and select "Chart History Length".

• SQL Help: selection of tickets without open tasks

  Hi gurus,
  
  I'm new to SQL. I need your help for a script where I pick up tickets without open tasks.
  Say, here is the table of tasks
  
  Table: task
  
  ------------------------------
  | TicketID | TaskID. TaskStatus.
  ------------------------------
  | 1. 1. O |
  | 1. 2. O |
  | 1. 3. O |
  | 2. 4. C |
  | 2. 5. C |
  | 3. 6. C |
  | 3. 7. O |
  ------------------------------
  The query should return the ticketid (s) with all its taskstatus = 'C '.
  
  Any help would be much appreciated.
  
  Thank you

  Hello

  surya_vus wrote:
  Frank,

  Your query will exclude other State of the task?

  Try it and see!

  If, in your real problem, the relevant information are spread over three tables, then join them.
  If there is a condition of additional, based on reason, then add that. The WHERE clause is the most logical place.
  If you are interested in taskstatus in 'C' or 'F', then test for one or the other.

  If the GROUP OF... HAVING solution is:

  SELECT       ti.ticketid
  FROM       ticket     ti
  JOIN       task          ta     ON ti.ticketid          = ta.ticketid
  JOIN       taskstatus     st     ON ta.taskstatusid     = st.taskstatusid
  WHERE       ti.reason     = 'C'
  GROUP BY  ticketid
  HAVING       COUNT (*)     = COUNT     ( CASE
                           WHEN  st.taskstatus IN ('C', 'F') THEN 1
                        END
                      );
  

• Create/edit task DAQmx vs DAQmxCreateTask

  I just started using Labwindows recently, so I'm a newbie here. You have a configuration great forum and I hope you can help me with that.

  so, as the title indicates what is the difference between the use of these DAQmxCreateTask(), the functions LoadTask() and manually create a DAQmx task using the menu 'tools '.

  Don't they realize the same thing? What is the need for each of them to be here? Am I missing something?

  I have already a little used in Labview. In that, to acquire data, we must use the icon tasks DAQmx to acquire/generate anything. but it is not all available such alternative programming, if I'm not mistaken. so, what's the problem with Labwindows/CVI then?

  Tools > generate DAQmx task launches a wizard that allows you to define the characteristics of the task and create the corresponding code. You can do this by yourself by manually writing individual instructions: this can be useful if you already have an existing code that you can reuse with adaptations little or if you have a special need that cannot meet the wizard or simply if you have the habit of writing code rather than rely on assistants which is my option.

  LoadTask is used to load a task created in MAX and use it in your program. This allows a form of customization of the task without changing the source code, with the obvious caveat that excessive changes in the task can cause the end behavior or abnormal length of program errors.

  All these options are legitimate ways to perform the same operation, a task for the acquisition of coding: know the characteristics of each of them, you can choose one that is most suitable to your purpose and your programming habits.

• How to create a task DAQmx LabVIEW?

  I want to create a new task DAQmx in LV I used "create new task" VI in Bt NV. I want to see the task created in the list of tasks MAX also.

  There is no connected device. Its just simulation.

  Use the task to save DAQMx.

  http://search.NI.com/nisearch/app/main/p/bot/no/AP/global/lang/en/PG/1/q/DAQMx%20Save%20Task/

• I 200918 error when you try to save a task DAQmx

  I have a Labview application 7.0 that creates and registers a task DAQmx (DAQmx version 8.0).  I can create a new task, but when I try to save the task I have Labview 200918 internal error. So far, this has worked very well on several machines but recently received this error message on a new Windows XP SP3 machine running.  I am able to create a backup task by using MAX (version 4.3).  Anyone know this kind of error before?

  Kind regards

  David

  This code corresponds to what is now an external error code.  The text of the error is:

  "Global channel name specified is already used for a task in the area of data.  NOR-DAQmx does not support global channel names and overlapping tasks.  Select another name. "

  I don't know why this code appears as an error internal to you, but the new text of the error, you should get going.

• Convert from type string to type task DAQmx

  Hi all

  I would like to know if it's possible to convert type string DAQmx type (task DAQmx in)

  Thank you!

  This error is not associated with the conversion of the string type. I don't really know what is happening in your application, but I suspect that you are getting the error because you have not configured/registered your task properly, possibly in another application on the same system. I saw this problem before when functional using globals to save a task in one application and then read the overall task of the functional by using an another VI. This usually occurs because the functional world will save the value associated with the particular task. I would recommend that you look for the error code on the website and have a look at the following article. I apologize, but my knowledge is limited on this error.

  Recorded by program channels, NOR-DAQmx tasks and examples of scales

  TonP, I was avoiding the point of constraint

• Verify that a task DAQmx is a particular type of task

  I'm trying to find a method in LabVIEW to make sure a task DAQmx contains a particular type of task.  For this particular application, I want to check a task DAQmx is a digital output (line) before you run it.

  Regulate a DAQmx control i/o filtering is an option for me, but this code will be used by other programmers and I would like to add this check additional w / error handling in the case where the task is to be of the correct type.

  Thank you for your comments.

  -Nic

  Use the property of channel-> node property of Type string and it will tell you what type of task.

  Cheers, Matt

  

• When I open Task Scheduler and click on MSE for planning, I get the following warning. General Page initializatin has no 0 x 80070534

  Original title: Task Scheduler

  When I open Task Scheduler and click on MSE for planning, I get the following warning.

  General Initializatin page failed,

  The specific error is:

  0 x 80070534: no mapping between account names and security IDS was done. Year error has occurred trying to retrieve task account informaiton. You can continue to edit the subject of the task, but will not be able to change task account information.

  I then press the ok button and it goes to the task, schedule, and the settings box.

  When I check in scheduled tasks, to see if they ran as planned, the last run time column NEVER said, and the status column indicates

  COULD NOT START.

  In the morning, I always get this error message:

  A task could not run...

  Do you know what I'm doing wrong? Can it be fixed?

  Thank you Tim

  Is there a password the user account in which the task is scheduled?  You cannot schedule a task to run under a user without password account.

  You can also take a look at advanced > view the log window scheduled tasks.

• Why your system is pretty darn running updates interrupt any scheduled task, it sucks!

  Why your system is pretty darn running updates interrupt any scheduled task, it sucks!

  Dhhuang said

  Sorry if you've been misinformed...

  It is not Microsoft. Produced only one of the many forums where people come to help others with computer problems related to Windows and Microsoft.

  We are, most volunteers. MS employees are not and do not get paid for help. A few volunteers.

  Understood, please note that we are not guity what happened to your computer.

  `~`

  Read here:

  Microsoft Update product team blog: Windows Update and automatic reboots

  http://blogs.technet.com/Mu/archive/2008/10/02/Windows-Update-and-automatic-reboots.aspx>

  Change how Windows installs or notifies you of updates

  http://Windows.Microsoft.com/en-us/Windows7/change-how-Windows-installs-or-notifies-you-about-updates>

  If you select the download updates but let me choose... option, no update will install without your approval. Suppose an update will require a reboot and does not approve the installation of an update until & unless you are ready to restart.

  You can change the AU for the "updates but let me choose whether to download and install them" setting. Once you have done this, you will need to approve the updates are downloaded, the updates are installed and where they are installed.

  I prefer "check for updates but let me choose whether to download and install them" setting.

  UTC/GMT is 00: 18 on Sunday, January 15, 2012

• Close task DAQmx freezes

  Hi all

  I've been struggling for some time with the following problem, no relevant answers to it. Maybe someone here have met it before.

  I wrote a program in 2011 Labview data acquisition, using daqmx 9.3 + acquires data from a card NI 6008. The program works very well at all works with my laptop, but crashes during like every third performance on another laptop. Both have win7, the other is 64-bit (I'm not sure that matters).

  The program itself is quite complicated, so here I PASE a image of one of the parts he tends to freeze at (there are many other acquisition tasks, where it delimits to freeze, but every time that the structure of the block diagram is basically the same, with the creation and closing of the task). It is freezing more often when there is continuous sampling frequency of 1000 Hz and simultaneous treatment (trace, fft, etc.), in a regime of producer/consumer. The interesting thing is that it does not ALWAYS freeze.

  Whenever I check if the program hangs at the TASK.vi STOP without sending an error message. I can produce the same error with the simple example, I have insert below, if I run the program several times (it takes 10-20 tracks of stick to stop task.vi)

  Please, send any suggestions on what could be the problem.
  Another tip is the MAX itself gives an error of "embedded memory overflow", several times at startup. However, I tried the solution with the property node - without success.

  Dear Buadam,

  The workaround you mentioned has been implemented in NOR-DAQmx 9.4 and should be available from this version. The default value of value certainly not 1, since that would limit USB flow considerably, especially on faster devices.

  To explain more in detail: this property ("Analog Input" General Properties"Advanced" transfer of data and memory"County transfer USB) is responsible for defining the size of a USB transfer burst. The default USB transfer size is 32 KB. For a very fast channel or high County applications increases the size of USB transfer request are likely to increase flow. In this case however, we are voluntarily reducing the size of the transfer, to be absolutely sure that the bug in Windows 7 (how the system handles applicants on USB 2.0, specifically, how the packages are split) does affect us, resulting in deadlock as you packages known. So the idea here is to small enough packages to ensure that the USB driver is unable to divide, this prevents in turn also USB performance, but since the 6008 is a relatively slow, low peripheral County channel, we always have more than enough bandwidth.

  So, to summarize:

  • Please update on DAQmx 9.4 or more if you can (LabVIEW 2011 is supported up to the most recent, version 9.8)
  
  
  • I also recommend to upgrade the USB drivers from the laptop from the website of the provider as appropriate.
  
  
  • Set the AI. UsbXferReqSize to 1 once available. If you don't find it, try right-clicking on the property node, select filter... > display all attributes

  crossrulz: you have effectively reason that a finite measure stops the task once all samples have been read, so a wait until I recommended is redundant here, as it is expected to return with fact = True. The reasons why I suggested to use are:

  1. To refresh the status of the task, "check" that he has been arrested properly.
  
  
  2. To give the device of the extra time before the command stop the task/Clear task is sent.
  
  
  3. To catch errors that are stored in the DAQmx object, but not covered by the read operation, before attempting to stop/clear.

  Hope is makes sense.

  Kind regards:

  Andrew Valko

  NIH

• CDAQ line internal uses as to task DAQmx

  Hello

  I have a cDAQ-9178 and I would send a trigger to two different tasks (DO and HAVE) to be sure that they start at this very moment.

  I want to pull the trigger using the software instead of and the external trigger on PFI lines for example. For example, I would activate when a user a press control on the front panel.

  I tried to use the internal counter of the cDAQ (_ctr0) by producing a pulse on this subject. The problem is that I don't see these online when I'm the trigger of the 2 previously mentioned for task configuration. There are a lot of different line which seems to be possible to take, but I don't know how a trigger on the thesis...

  Help would be appreciated!

  Thank you!

  Is there any installation work you can do before generating a start trigger.  For example, create a task, creating channels, configuration of timing and call back to this subject can take a few hundred milliseconds.  There are intermediate steps, you can take in front-loading from time to time configuration.

  A DAQmx task has a certain number of States.  When you call start on a task, it passes through verified, reserved and committed to started.  So if you're explicitly your task, your call will be faster because your hardware is already configured.  If you had already created the task, created channels, set up the synchronization and committed to the task (via the DAQmx task control interface), the start task could take only 10 ms or more.  These numbers are on the top of my head.  This will not reduce the time it takes to start your task, only a specific stage of the issuance of your trigger for starting the software.

  That said, if you go to the road to counter, you need not to do for your tasks to AI and.  Just make sure you start them before your task to counter.  You could do what I described above for task of yoru meter if you feel he was taking too much time to generate your trigger to start.

  * Edit *.

  I should mention that the delay time that I was talking refers only to the time of when your user requests a trigger to start generating chassis a.  The time of your trigger from start to the first sample clock in your task is essentially nothing - about 12.5 ns or so depending on your configuration.