Does multiple instances of DAQmx start task result in error?

I am trying to read voltages from pressure transducers and LVDTs in two separate While Loops. But when running the program there is an error regarding DAQmx Start Task.vi. So I was wondering if multiple instances of DAQmx Start task results in error. I have attached the vi.
Thanks
Attachments:
IsoConsolidationDAQMAX02.vi ‏140 KB

Thank you for the reply. New to Labview so I didn't know that we had to search using the error code, I tried searching using text though. Will do that from the next time, thanks.
I do not have the problem with the write tasks but only with the read tasks. Right now I have one start task for all the input from the pressure transducers and LVDTs and three start tasks for the three analogue outputs and the program seems to run fine.

Similar Messages

Error -200587 occurred at DAQmx Start Task.vi:7

I am running the attached code Merrit_Coil_calibration, and I get the following error:
Error -200587 occurred at DAQmx Start Task.vi:7
Possible reason(s):
Requested operation could not be performed, because the specified digital lines are either reserved or the device is not present in NI-DAQmx.
It is possible that these lines are reserved by another task, the device is being used through the Traditional NI-DAQ interface, or the device is being reset. You might also get the error if the specified resource is currently in use by LabVIEW network variables bound to the DAQ Channel, or if the DAQ Channel is being used in any OPC Client software.
If you are using these lines with another task, wait for the task to complete. If you are using the device through the Traditional NI-DAQ interface, and you want to use it with NI-DAQmx, reset (initialize) the device using the Traditional NI-DAQ interface. If you are resetting the device, wait for the reset to finish.
Device: Dev2
Task Name: _unnamedTask<F>
I am calling the same DAQ, many different places in my code and I think that is the problem, but I can not figure out why or hw to fix it. Anyone have any suggestions?
Attachments:
Final.zip ‏2434 KB

Thank you both for your input. I slightly changed my code to Merritt_Coil_calibration (updated code attached) and the first error went away, but now I have a different one which is:
Error -200429 occurred at DAQmx Write (Digital U32 1Chan 1Samp).vi:1
Possible reason(s):
Value passed to the Task/Channels In control is an empty string (or I/O control).
The value must refer to a valid task or valid channels.
As far as what DAQ device I am using, it is the NI USB 6009. I am only using digital port 0. During different pieces of my code I send different values to port 0. I am using this to drive some stepper motors. I thus send square waves on the different pins on port 0. I do not know if this is exactly what you were asking.
Whatever the case, I was wondering if anyone knows why this error occurs and how I could fix it.
thanks.
Attachments:
honorsproject.zip ‏256 KB

Error 229771 occurred at DAQmx Start Task - only in Labview project

Labview 2011 sp1
os: W7 32bits
DAQmx 9.7.0f0
ni-PCI 6251
Hi,
I'm working with a ni-PCI 6251 card. I got the error : Error -229771 occurred at DAQmx Start Task. Possible reasons :Internal sofware error occured in MIG software ... when I'm trying to launch my data acquisition vi. This error was already reported in this post :
http://forums.ni.com/t5/Academic-Hardware-Products-NI/Error-229771-occurred-at-DAQmx-Start-Task/td-p...
I tried to reinstall DAQmx as explained in the post but it unfurtunatly it did'nt fix my issue.
I've notice the following points :
1. This error appears randomly, after several reboots the vi will finally run without error
2. The error only appears when the vi is included in project
I will really appreciate any kind of help.
sebastian
Attachments:
test_daq_2.vi ‏23 KB

Bonjour,
Je vous invite à jeter un oeil sur le lien suivant :
http://digital.ni.com/public.nsf/allkb/03123D0E8A36C48E862577A4005B6BAA?OpenDocument
Il devrait résoudre votre problématique.
Cdlt,
Matthieu RICORD
National Instruments France
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Error 229771 DAQmx create task internal MIG error

Receiving error 229771 @ DAQmx create task.vi: 2, internal error in MIG software. not start task. - for a simple ThermoDAQ read application
reinstalled drivers, attempted to start NI configuration mgr and Device loader but they are immediately stopped- disabled anti virus, etc. help?

Hi eremark,
There are a few things we can try to troubleshoot error 229771. This error can occur if NI services are not running and occurs when LabVIEW tries to communicate to these non-running services. It can also occur if you have a corrupt MAX database. There are a few things we can try
1. Can you please try verifying if NI services are running?
2. Can you check if you are administrator of your PC?
3. Do you know if DAQmx was installed under an administrator account?
4. Have you tried disabling your firewall?
5. Try removing all DAQ devices, restarting your computer with them removed, shutting down the computer again and connecting them back up.
6. Did you repair your daqmx drivers or reinstall them? It is important to make sure you do a true reinstall (http://digital.ni.com/public.nsf/allkb/ADD22E807D5A12AD862579EC00760F79?OpenDocument) instead of repair which will force overwrite anything from previous installations
7. Try repairing a corrupted MAX database - http://digital.ni.com/public.nsf/allkb/86256F0E001DA9FF86256FFD005B827C?OpenDocument http://digital.ni.com/public.nsf/allkb/7FF79722720AEE488625759B0074A2CA?OpenDocument
Please let me know if you have any questions or need any clarification with any of these troubleshooting steps. Thanks
Doug W
Applications Engineer
National Instruments

Error while doing multiple object updation from EP ! object lock error

HI all,
I am doing multiple object updation using a standard RFC(BAPI_PROJECT_MAINTAIN). The RFC i am calling from Enterprise portal. I am sending data to RFC one by one. But the error i am getting is object is locked by user so data can't be save.
Though i am using Lock and unlock method before and after calling RFC the project lock error comes up.
What might be the reason
regards
sandeep

Hi Sandeep,
Is the RFC you use for locking in the same model as the bapi BAPI_PROJECT_MAINTAIN? If it is not then you are using two connections for communication with the sap R/3 backend.
You can do 2 things.
1. You could add the RFCs for locking in the same model as the BAPI_PROJECT_MAINTAIN
2. Instead of adding the RFCs in one model synchronize the connections the models use as follows:
IWDDynamicRFCModel model1 = (IWDDynamicRFCModel) WDModelFactory.getModelInstance(Model1.class);
IWDDynamicRFCModel model2 = (IWDDynamicRFCModel) WDModelFactory.getModelInstance(Model2.class);
model1.setConnectionProvider(model2);
You can do this in the wdDoInit. This will make sure both models use the same connection but closing a connection will close both at the same time.
The same problem applies to commit/rollback functionality.
Regards,
Jeschael

Multiple instances of firefox in task manager but FF doesn't open

- Windows XP SP3 (up to date with all critical updates)
- FireFox 25.0.1 (Note: Originally I had version 31 but a few days ago that stopped working)
- Norton Security Suite (the comcast version) up to date
- I have IE6 and Chrome 37 as backup browsers (Note: when FF stopped working, IE8 had also stopped working - page would open, only one system process, but page would never load)
Ran the following scans:
- SUPERAntiSpyware Free Edition
- Malwarebytes Anti-Malware
- Ad-Aware Antivirus
- Spybot-S&D Start Center
Found a few non-critical yet potential infections (nothing too crazy)
Symptom persists as follows:
- fresh boot of computer
- open task manager (no instances of FF)
- open firefox - process appears in task manager and immediately goes to 50%
(nothing opens and nothing listed in Applications)
- open a second instance of firefox - 2nd process appears in task manager
(still nothing opens and neither instance appears in Applications
(the two instances continue to run at a cumulative 50% CPU usage - one might be 15% and the other running at 35% - or both running at 25% each)
- open a third instance of firefox
(still nothing opens, and all three instances show in task manager processes and cumulatively run at 50% - example:15 +15 + 20 or 10 + 15 + 25)
Troubleshooting:
restored a drive image from May 2014
- Note: Dec 2013 I had done a complete FRESH new install of Windows XP in prep for EOL and installed all updates, including SP3, so the image I chose from May was only 5 months old, but I chose that one because of some of the other programs I had installed that month and didn't want to go through that again
- Note #2: I have drive image run a monthly PQI backup of my C: drive and my R: drive) I have two hard drives 300G each whereas C: drive is OS only and R: drive is all my downloads, my documents, my photos, etc)
- after the image restored, I tried to open FF and IE8, neither app was problematic. FF auto updated from what version, I don't know, but it was on 31 when I realized the problem was BACK. Also ran some WIN critical updates, and IE8 stopped working too!
uninstalled IE8 (rolled back to IE6 and now IE works - but obviously I can not live with IE6 - I need to update that!) uninstalled FF31 (and deleted all temp and profile account folders) and installed a brand new copy of FF25 - whereas I immediately force stopped autoupdater and deleted the update files so I could remain on FF25.
Now FF25 will open only on the second instance of the process (the first will always go to 50% CPU, the second will open and run between 0 and 10 CPU, and only one application in Applications)
- I have learned that I can kill the 50% process using task manager or process explorer and total CPU usage will drop down to 0% - 10%
I can open many many tabs without any problems, and I can right click a link to open a new window and all is good, BUT if I use the desktop ICON, the quick launch ICON or the START > Programs > Icon, then the NEXT process will go to 50% and no second window will open
I have seen dozens of forums that have reported similar memory issues, but none have been resolved.
Can you help me? I don't want to upgrade IE6 to IE8 just yet, but I will not use it for anything but testing until I can upgrade. Note: besides being painfully slow, I have been switching to Chrome, but I have never enjoyed Chrome.... I am using FF right now to ask for help.
Any suggestions?

I have the "techie" answer for all of you. According to the tier 2 support at Norton Help Desk, the latest live update from Norton "utilizes Visual Studio 2012 which enables SSE2 instructions" and my processor can not handle that.
He said they are "working on a solution" and offered to reply back on Wednesday / Thursday this week if a solution could be found...

Error 89136 at DAQmx start task (Acq&Graph Voltage-Ext Clk-Analog Ref.vi)

HI,
I am trying to run example vi Acq&Graph Voltage-Ext Clk-Analog Ref.vi ( I have made some modifcations) in labview 8.2
I am trying to read pressure (from a compressor),
I have an encoder with 1024 pulses per revolution,
So I want to read 1024 samples for each of the 1024 pulses of the encoder and use the encoder as the trigger (with a channel that gives one pulse per revolution),
I get the error above and I have no idea why (I don't understand the settings at all).
Please help.
Attachments:
Acq&Graph Voltage-Ext Clk-Analog Ref.vi ‏43 KB

educob wrote:
Hi,
english is a foreigner language for me but i don't have significant problems understanding it.
My problem is lack of technical labview knowledge.
I want to read the pressure each time a encoder produces a pulse.
It should be as easy as setting the trigger (the encoder signal for each complete revolution) and the external clock (the enconder train of pulses).
But as easy as it sounds I can't do it.
Thanks.
Since that error message is telling that you are doing something that is wrong. I suggest you read the capabilities of the hardware. What you think the hardware should be able to do has no bearing on what it CAN do.

Error -229771 at DAQmx Start Task.vi

I'm getting this error as described at: http://digital.ni.com/public.nsf/allkb/03123D0E8A36C48E862577A4005B6BAA?OpenDocument I've tried the solutions offered there, to no avail. Using Labview 64 bit (latest versions)

There is essentially no code to show, but the machine I'm using is in a secured environment, so I couldn't anyway. What happens is that I place a DAQ assistant from the Functions palette on the block diagram, configure it for digital input from a single line on a NI-6534 PCI card which is receiving data from an external function generator.
If I click on the "run" button on the DAQ assistant, I see the digital signal flash as I would expect. I then close the assistant, and Labview generates the code. I then connect the data line to a Boolean indicator (boolean array of 1) and click run, at which time I get the error message indicated.
I'm told I'm using the latest versions of Labview 64-bit version and DAQmx, which were obtained and installed less than a month ago. I don't have access to the host machine right now, so I can't give you the exact numbers. It is running Windows 7 64-bit version.
I realize I'm not giving you much to go on, but I'm grasping at straws...

Daqmx control task

我的情況是: 在開師兄的LABVIEW 檔的時候.發覺要搜索很多未知的檔案,
例如 daqmx control task.vi
DAQmx start task.vi
我想問這些檔案可以在那裏找呢????
檔案在這裏
附件:
tttttteeeeessssssssttttttttt.vi ‏187 KB

你應該是沒有安裝NI-DAQmx
你可以連到以下的網站下載：
http://www.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/zht/pg/1/sn/catnav:du,n8:3478.41.181.5495,...
最新的版本為NI-DAQmx 9.2.2
建議安裝前先確認使用的Labview版本
然後打開readme.html 找尋是否該版的NI-DAQmx有支援所使用的Labview版本
例如在NI-DAQmx 9.2.2支援Labview 8.5.x, 8.6.x, 2009, and 2010

Multiple instances of explorer.exe running in task manager

I got a dropper trojan virus on my computer that microsoft security essencials do not recognized but after running "superantispyware" antivirus I got discover it and delete it. After that, I still could find the infected files in my
administrator folders as .temp files and I just erased them. After that my computer started crashing and runing several instances of explorer.exe in the task manager with different memory values, some of them ascending to 350,000. I have set up my computer
to run just the basic services, I have tried windows in safe mode, ran other antivirus programs but still it is performing the same. As far as I have noticed other unusual process present are host.dll, dllhost.exe, and logonUI.exe. Any idea about it? Thanks
in advance for your help.

I have the same issue. It started about a month ago when I was filling out a form online and had to quit and close the window. My system got very buggy (can't remember details), flashing, then really slow. Found a bunch of explorer.exe instances
in Task Manager. Ran Security Essentials and several other anti-viruses, nothing found.
Running Win7 Pro, sp1, 64-bit, CoreI5, 4Gb Ram
Restored system to a previous version, didn't work
Restored last system image, didn't work
Used System Repair Disk - ran Memory Diagnostic. Said it would give me report after reboot. Never saw a report after reboot. But only one instance of explorer.exe in task manager at that point. Took disk out, rebooted normally. After
20 minutes or so, the multiple instances were back.
Used Repair Disk again, ran Memory Diagnostic. Again, no report after reboot (leaving disk in machine both times), but only one instance running again.
Did this a few times with the same result, so now leaving disk in system and always boot from it.
Ran Security Essentials again, found that rovnix virus, removed, ran again, found it again.
Ran search for instances and found many. Here's an example:
C:\Windows\explorer.exe
C:\Windows\winsxs\wow64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.17567_none_b9fc4815c4e292b5
C:\Windows\winsxs\amd64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.21669_none_b0333b22a99da332
C:\Windows\winsxs\wow64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.21669_none_ba87e574ddfe652d
C:\Windows\winsxs\amd64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.17567_none_afa79dc39081d0ba
C:\Windows\SysWOW64
When I check properties on the now single one on Task Manager, this is what it shows:
C:\Windows\winsxs\amd64_microsoft-windows-explorer_31bf3856ad364e35_6.1.7601.17567_none_afa79dc39081d0ba\explorer.exe
C:\Windows\explorer.exe
I was going to reinstall entire system, but was from an Anytime Upgrade which now says it's invalid. Much more to story on that (calls to MS support, etc.).

Adobe reader XI not responding, multiple instances in the task manager is XI junk?

Hey everyone!
I need some help, I have about 175 computers that im working on and a hand full (more as the days go on) of them are having a problem with adobe reader XI.
Here is what is happening.
If im online pulling up a pdf from a finance company we use the pdf will begin to open (within the browser) and then you will get the blue loading bar
and then it gets almost to the end (somewhere between 80% and 99%) and then it will just freeze up or just display a white page where the pdf should be. It is doing this across a bunch of sites not just one or two.
The other thing i have noticed is that there are multiple instances (10 - 20) of the adobe reader xi in the task mananger if you close all them out some times it will start working some times it wont.
Here is what i have done.
1. removed adobe XI
2 reset the browsers
3 changed the settings with in reader XI
4 used the removal tool
5 tried a different browser
Im runing out of options!
HELP
I have reader 11.0.10

What is the operating system on these computers? What browser are they using?

Multiple instances of firefox running cannot kill in task manager "Access denied"

There's no issue with starting a new instance after closing one, the "firefox is already running" error is not occurring (ok maybe once or twice a month, but it's not related to this problem, as my problem happens all the time.)
Apparently when closing a ff window it never fully stops. My computer slows down because of it and these multiple instances of firefox show up in Task Manager. When I try to kill the extra processes it just goes "BANG" and the "access denied" error dialog box appears. They are all running under my user account, and in CPU some are just 10 or 25 and some are in the hundreds and some are over a million. what the heck is going on?
I'm running Windows 7 64 bit and ff 23.0 but this has been happening since about ff 15 (?)

When closing Firefox completely, it is important to close it using the <i>Exit</i> button, located inside of the Firefox/File menu.
Another cause to this problem could be a Firefox preloader. Do you have any programs that will load Firefox automatically? They are supposed to improve start time.
You can also '''try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* Open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
I hope that one of my solutions helps to fix your problem. Please report back with updates soon.
<b>NOTE: </b>You are using an outdated version of Firefox. This can cause security and functionality issue. Please update to the most recent version as soon as possible.

Multiple instances of Internet Explorer in task manager using 100,000 KB+ memory

Hi! I recently got a virus on my computer that causes multiple instances of explorer.exe and iexplorer.exe to appear in my processes tab of task manager. Over the course of about a minute, the memory usage of each begins to climb rapidly until all of my
memory is being used by these. These do not appear in my applications, nor do they actually open up an internet explorer window. When I end task on them, another one appears about a minute later to take its place and do the same thing again. Additionally,
when I click shut down to turn my computer off, various advertisements flash on my screen for a few seconds before the computer begins to shut down. When the computer is started up, a window appears for a split second that contains only blackness. I have never
seen this window appear before the virus was obtained. When I end task on all my explorer.exe and iexplorer.exe applications at the same time, my desktop vanishes, but it also stops those applications from reappearing. This virus has caused my computer
to run unbearably slow. I have tried Spybot S&D, Exterminateit, AVG, Roadkill, and other methods and nothing seems to detect this or cure it. I am not that good with computers, but I am dying for help on the matter! If you can assist, please let me know
what I can do with detailed instructions for my sake! Thank you!!!!!!

See and follow Andy's excellent advices.
In addition...
See: "How to
Reset Internet Explorer settings".
If the issue persists...
1. Please download and run the
Microsoft Safety Scanner tool (freeware).
2. Reboot your PC.
3. Please download and update Malwarebytes Anti-Malware Free
4. Reboot Windows in
Safe Mode and run a Full Scan with Malwarebytes Anti-Malware.
5. Download and Run AdwCleaner (Freeware)
6. Reboot and Test.
Best of Luck,
Vincenzo Di Russo
Microsoft® MVP Windows Internet Explorer, Windows & Security Expert - since 2003.
Moderator in the Microsoft Community and TechNet Forums
My MVP Profile

Starting multiple instances of Matlab in Mac OS X Tiger

I am trying to start multiple instances of Matlab in Mac OS X 10.4, that is, there are several users in this machine, and they all need to use Matlab. Right now, only one user is able to do so, when a second user logs into his/her account and they start Matlab, it does not start. Actually, if one user has X11 open (not even Matlab) and another user tries to start Matlab it won't start. I'm not sure if this is a license problem, an X11 problem, or a Matlab problem. To start matlab, I am using the StartMATLAB.app located in the Applications folder. Following are the details for the hardware:
Model Name: Mac Pro
Model Identifier:
MacPro2,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 3 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
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SMC Version: 1.15f3
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Some information about Mac OS:
System Version: Mac OS X 10.4.11 (8S2167)
Kernel Version: Darwin 8.11.1
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I appreciate your help.
<Edited by Moderator>

See this article: An easy way to run multiple instances of any program.
I believe another alternative is to provide a separate copy of the application in the users own Home folder by placing it in the /Home/Applications/ folder. This may not work for all applications as some simply will not run multiple instances of itself.
Licensing is of course a separate issue as each unique user may require a license, although many licenses only restrict use to one CPU at a time rather than multiple users on a one CPU.

Adobe After Effects Multiple instances does not working parallel using Scripting

Hi all,
i am uploading after effects template to my site, user came and upload his desired contents.
i update the template using scripting with user's contents and then render video so user get video with his uploaded text/images etc.
its working perfectly when i update a single template at a time but when multiple users come at the same time then they need multiple instances of after effects
so i open multiple instances of after effects by using "-m" with after effects shortcut
after looking at windows task manager there are both instances but the problem is
only once instance continue and the second one stop, after completion of first instance the second one still in pause status
i need 2,3 4 or whatever instances to work parallel without pause/stop
i am using windows server 2008 R2 with XAMP installed

Hi Lal XaDa,
Would you please post your script to help us to troubleshoot?
In addition, if you can use Windows Powershell, please try these ways:
If a script needs some speed-up, you might find background jobs helpful, you can use the cmdlet "start-job", for more detailed information, please go through this article:
Parallel Processing in PowerShell
You can also use the cmdlet ForEach -Parallel in powershell workflow to handle script in parallel.
For more detailed information, please check this article:
about_Foreach-Parallel
If there is anything else regarding this issue, please feel free to post back.
Best Regards,
Anna Wang

Does multiple instances of DAQmx start task result in error?

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