Where is the Taking an NI-DAQmx Measurment in LabVIEW tutorial

[scharkha]

Hello
I am new user to LabVIEW and I am using the LabVIEW 7 Express ( Evaluation Software) to learn more and see if we can use this in our research group. However, when I got to section 4: Acquiring Data and Communicating with Instruments, I got stuck.

1) I can not find the Tutorial " Taking an NI-DAQmx Measurement in LabVIEW

2) I can not find the DAQ Assitant in my output palette.


Can some one help me plzzzzzzzzzzzzzzzzzz

[Kurt_NISalesEngineer]

Hi,

1) Go to help drop down menu in either block diagram or front panel > Taking an NI-DAQmx Measurement in LabVIEW: In this tutorial, you create a voltage measurement task using the DAQ Assistant.

You can manually navigate to this on your system at C:\Program Files\National Instruments\LabVIEW 7.1\help

2) With LV 7.1 the DAQ assistant can be found on the block diagram > right click > functions palette > input sub-palette or output sub-palette. (The DAQ Assistant will require NI DAQ MX driver to be installed.) The driver can be obtained for free at www.ni.com/downloads > drivers and updates link > multifunction DAQ.

You may need to either reinstall or obtain a proper copy of LabVIEW.

Kurt

[scharkha]

Hello kurt
Thank your for your quick reply to my question, However, it did not work 😞 and It seems like I have some other problems.

I have installed the LabVIEW 7 Express on my machine. as I mentioned it is a Evaluation version. ( v7.0)

I also installed the NI-DAQmx Base on this PC. My major question is this: In order to run this tutorials, do I need to have my DAQ card installed on this machine as well ???? or the tutorial is not related to the the DAQ card.

1) you told me I should see the : "Go to help drop down menu in either block diagram or front panel > Taking an NI-DAQmx Measurement in LabVIEW: In this tutorial, you create a voltage measurement task using the DAQ Assistant.
You can manually navigate to this on your system at C:\Program Files\National Instruments\LabVIEW 7.1\help"

When I open a new VI and go to help, I do not see this option under it. I do not see any turorial uner that.

2) Also, I see foler with the name of lab view 7.1 but there is not short cuts to that so I am not able to run that.( all I can run is the 7.0 evaluation version).

What am I doing worng??

[Kurt_NISalesEngineer]

Hi,

Beware: NI DAQ MX "base" and NI DAQ MX are different drivers. The DAQ Assistant is an Express VI (has a light blue background colour) and is therefore easy to use because it presents you with dialog box when you place one on the block diagram to allow you to set the vi up. The DAQ Assistant is built around the NI DAQ MX driver and so you need to have the NI DAQ MX driver installed to be able to use the DAQ Assistant Express VI properly. LabVIEW Version 7.0 Express will have DAQ Assistant but i believe anything prior to that release does not have daq assistant express vi.

Check this link out: http://zone.ni.com/devzone/conceptd.nsf/webmain/736BA7168F48742286256D2600713527

Kurt

[Tom_W_[DE]]

Hi Scharkha-

The tutorial you're looking for is located under "C:\Program Files\National Instruments\LabVIEW 7.0\help\daqmxtutorial.chm" for a LabVIEW 7.0 installation.  In order to use the DAQ Assistant you will need to install the NI-DAQmx 8.0 driver. 

It would perhaps be more informative to use a physical DAQ device when you are working through the tutorial, but it is not required.  You can use NI-DAQmx Simulated Devices (see this KB for more information) to simulate most of the funcationality of a physical DAQ device.

Hopefully this helps-

[scharkha]

Thank you all for your great help. this is the best disscution fourm that I have been in. I down loaded NI-DAQmx and created a NI-DAQ simulated device successfully.
I also did find that tutorial in the directory that you mentioned. I also came across this tutorial
http://zone.ni.com/devzone/conceptd.nsf/webmain/B710C1A8941DB67086256FC8004FB7E5?OpenDocument&node=10181_US

in the lower part of the page, it is explaning on how to run a certain example in the LabVIEW.
Cont Acq&Graph Voltage-Int Clk VI

However, when I try to do this, an error message comes up that I need to reinstall the examples. Which CD are the examples in or where can I get the examples??

I am still not able to do the tutorial fully 🙂 But I am working on it and I think I should be soon able to do it.

Thank you once again for your wonderful help.

[Tom_W_[DE]]

Hi Scharkha-

The examples should have installed when you installed the NI-DAQmx driver.  You must include support for LabVIEW 7.0 while running the NI-DAQmx installer in order for the examples to appear.  When you say you're seeing an error message, do you mean that the error is shown when you try to open the VI from the NI Example Finder or that the NI Example Finder itself will not open?  Regardless, you should be able to find that example in "C:\Program Files\National Instruments\LabVIEW 7.0\examples\DAQmx\Analog In\Measure Voltage.llb".

Because it sounds like you're having problems accessing basic LabVIEW functionality (the help files, examples, etc) it sounds like your installation may be corrupted.  When you have a chance I would suggest uninstalling both LabVIEW and NI-DAQmx and then reinstalling in an attempt to correct the problems.

Hopefully this helps-

[scharkha]

Thank you for the very quick reply 🙂

I am getting the error while trying to open the VI in LabVIEW, I did however, thought that I included that option while installing my NI-DAQmx. I will do your suggestion and will reinstall everything right after lunch.

Best Regards
Shawn

[Tom_W_[DE]]

Hi Shawn-

Sounds good- keep us posted.

[scharkha]

Me Again
I have some good news and some bad news.
Good News:
I was able to run the voltage measure tutorial from MAX easily.
Bad news:
I reinstalled NI-DAQmx and still was not able to open that vi you mentioend. ( as I mentioned the error message is that the examples are not installed).

So I took your advice and through LabVIEW >  Open VI > and tried to open the example in the directory that you mentioned. However, i get the errors such as it looks for :

Al-Voltage-Basic.vi
DAQmx Timing.vi
and .....

So basically, it can not load some of thise subvis and I can not run the examples!!!

Any new suggestions.
Plz