High speed data logging program

[oval]

I'm very new to labview. My lab has version 7.1 installed. I need to write a program to do some high speed data logging (at least 1Khz) and to display the waveform on screen in real time. I'm measuring pulse heating and output would be a voltage waveform over time. I would also like to export the data to excel. I would really appreciate it if anyone can post a program that they have so that I can use it as a starting point instead of starting from scratch. Thank you in advance.

[Kallis]

Open examples finder in labview, and search for 'acquisition'. You will be able to see 'Cont Acq&Graph Voltage-To File(Binary).vi'. Use this VI to acquire and log data.

[oval]

Hi AK
   Thank you for your response.  I have tried looking for that file but I don't have it. Are you using a higher version than 7.1?  Could you please post that file here? Thank you and have a good weekend

-o

[xseadog]

Hi
 
Have you checked the examples that are provided with Labview?

Start Labview and under the help menu find the Find Examples command. This opens a new window with several options.

xseadog

[oval]

Hi xseadog,
    I have looked in the "Find Examples"  but that particular file is not there. Could you post it here if you have it? Thank you.

-o

[Dennis_Knutson]

From the main examples screen (the browse tab), it should be under Hardware Input and Output>DAQmx>Analog Measurements>Voltage. If you don't have that, it means you did not install DAQmx and if you don't have DAQmx installed, it does no good to send the VI.

[oval]

I looked under "Hardware Input and Output" and "DAQmx" is not one of the options under it. The options available are: GPIB, General, Serial, Sound, Traditional DAQ and VISA. Could I use one of the examples under "Traditional DAQ>Analog IO" for high speed data logging? Do I need to download an additional driver to get the DAQmx? Thank you.

[Kallis]

I don't have traditional DAQ installed in my PC and the VI that I mentioned uses DAQmx. I recommend, you install the latest NI-DAQ device driver, and while installing select support for LabVIEW 7.1.

http://joule.ni.com/nidu/cds/view/p/id/965/lang/en

Message Edited by Anu Kalidas on 03-01-2008 10:27 PM

[Brooks_C]

Hi Oval,

These are all great suggestions.  I just wanted to add that NI-DAQmx and NI-DAQ (Traditional DAQ) are different drivers and some hardware only supports one or the other.  You can see what driver you need here:  NI-DAQ Driver Support: Main Page

If you're card supports both drivers it’s recommended that you use NI-DAQmx unless you're required to use traditional DAQ for some other reason.

Have a great day!