Error – 229771 occurred at DAQmx Start Task

[BCuervo]

I have the latest updates for LabView student edition and DAQmx for acquiring data from my USB 6008 and I have an analog 3V input wired. The USB 6008 appears to work because when I run a test panel in measurement and automation explorer, it displays the voltage input.  I’m trying a very basic vi in LabView to graph an analog voltage using the DAQ assistant but I get the following message when I hit run:

 

[John_P1]

Hi BCuervo,

Just a few follow-up questions:

1.  What OS are you running?

2.  Which version of LabVIEW? 

3.  Can you try running the Cont Ac&Graph Voltage-Int Clk.vi shipping example (in LabVIEW go to Help » Find Examples... » Hardware Input and Output » DAQmx » Analog Measurements » Voltage).

4.  Which Version of DAQmx are you using?  9.0.2 is the most recent version (an upgrade/repair would be a good troubleshooting step in this case).

I have seen the MIG Error as a result of a software corruption in the past so upgrading or repairing DAQmx would be a good first step (DAQmx 9.0.2 supports LabVIEW 8.2.x, 8.5.x, 8.6.x, 2009).  Be sure to let us know how it goes or if the problem persists after upgrading.

Best Regards,

John

[BCuervo]

Hi John,

I'm running Windows Vista with LabView version 90f2. I just downloaded nidaq902f0 to replace nidaq900f2 but I'm still getting the same error when I try to run the simple program. I've even tried running it using the "Data acquisition with NiDaqmx.vi" template. When using the template, I don't get the error message but no output is displayed on the graph. When I try to load the example vi you suggested, I get, "Error occurred - The NI help server could not be found". I have the USB 6008 wired for a loop back test.

Any other ideas?

Thanks,

Bryan

[John_P1]

Hi Bryan,

There are a couple reasons why the Help Server might not be found. 

Ignoring that issue for now, I went ahead and attached two examples that I would try: one uses the on-board clock of the DAQ device and the other is software-timed.

Best Regards,

Message Edited by John P on 12-31-2009 09:17 AM

[John_P1]

Just noticed Seth's post in the other thread--if the examples I posted don't help out I would check the services running like he mentioned (especially considering what you mentioned about the Help Server). 

Also, we should consolidate these threads--let's continue posting on the DAQ thread that you've started which is the more relevant forum for this issue.

Best Regards,

[BCuervo]

Thanks John,

I'll continue on the DAQ thread---

Bryan

[TimA2011]

I am getting the same message (see attachment of screen shot).  I created a project and added a vi to it.  If I run the vi within the project, I get this error.  If I run the vi outside of the project (just open the vi), I DO NOT get the error.

I am running Labview 2012 (32bit) and Win7 (64bit) OS.

I would really like a response other than uninstall/installl the DAQmx driver as I have already tried this.

[Izzzzz]

Hello TimA2011,

Have you attempted to open a new project and add this VI into this new project and see if you get this error? Does this error occur with Examples in the NI-Example Finder when you attempt to add them to a project? What version of NI DAQmx are you using? What hardware are you using? Please take a look at this Knowledge Base Article which discusses the error you are seeing, please let me know if you have already taken a look at this article. You could attempt a force reinstall detailed on this Knowledge Base Article.

Regards,

Izzy O.

Applications Engineer

National Instruments 

[TimA2011]

Izzy, thanks for the response.

After reading the Knowledgebase and other people's comments, I am getting by the error (very catastrophic as nothing will work) by the following:

1. In MAX (I am using v5.3.1), save all Tasks, Scales, etc.(you will need this as a reference to create new ones)

2. Reset the configurations in MAX.  Tools->Reset Configuration Data     >> note: this will wipe out all your tasks, scales, etc <<

3. Restart the PC.

4. RE-CREATE the tasks and Scales.  I cannot re-use the saved .nce file.  I wonder after the error if the system "corrupts" MAX?

A few additional observations:

1. Before the error, while in the block diagram, I can select different Tasks (see attachment) from the I/O pulldown.

2. After the error, if I try the same thing, the I/O pulldown has NO Tasks that I can select from.  But, the Tasks still exist in MAX.

There appears to be a "disconnect" between MAX Tasks and the Block Diagram.

Hope this helps others and the problem can be fixed.

[TimA2011]

I am using DAQmx driver v9.6.1, Labview 2012, and cDAQ-9174 and various c-modules.