acquire data on demand

[sunny dee]

Hi,

Can anyone give me a suggestion or point me in the direction of an example that shows how to acquire data to a spreadsheet file on demand? I want to be able to sample data at, say, 10Hz and save the data at, say, 0.5Hz. Also, I want to be able to just push a button to be able to start to acquire the data, I don't want it to start right away when the program starts.

Thanks.

[RobertH]

hello,

take a look at the attached VI.
maybe it fits your application.

regards

[sunny dee]

This is close to what I need... But I don't think with your code you can adjust the sample record rate. ie: I want the sampling rate to be at 10Hz but I want to log only every 0.5Hz, for example...

[Tom_W_[DE]]

Hi sunny dee-

In order to log your data only every few iterations you will need to save data from several iterations and then write all of the data to a file on every Nth iteration.

I have attached a VI that logs random numbers to file- you should be able to use this concept and use your acquired data instead. You should be able to implement something similar to this in your main while loop.

Thanks-

Message Edited by Tom W. on 05-20-2005 12:52 PM