Multiple Channel Analog Input Indicators

[kdcui]

Hi,

I have my DAQmx Assistant acquiring 2 input voltages (attached to some thermocouples).  I can get them to read fine however I pretty sure I'm going about the wrong way of getting each channel to readout on its respective indicator.

At first I had the Data output from the Assistant going straight to an indicator but then I realized I was not getting both channels (it seemed to only be 1) and I could find not way to "split" the output to the seperate samples.

Then I tried using the Output Task into a Read Data DAQmx block, which I then had output multiple channel single sample data in the form of a 1-D array.  However, 1) I'm not sure if this is right and 2) even if it was I can't figure out how to pass the individual element (voltage reading) of the array onto my algorithim in DBL format.

Thanks.

[Dennis_Knutson]

To 'split' the two different signals, a good function to use is Split Signals. It's right there on the Express>Signal Manipulation palette (7.x anyway). Clicking the 'Search' button on the functions palette would have worked.

Note that if you are acquiring more than a single point per channel, wiring dynamic data to a normal indicator will only give you the last value of the acquisition. If you are taking multiple samples per channel, you would want to convert the dynamic data to an array. That's done with the Convert From Dynamic Data function.

Message Edited by Dennis Knutson on 12-04-2006 03:23 PM

[kdcui]

Thanks!

I knew I was missing something simple...

This project kind of just got dropped onto my lap, so I've had to hit the ground running so to speak without much resources to refer to.

Take care.