Sample Rate cDAQ

[shivels]

Hi guys,

I have a problem I've been trying to tackle for about 2 weeks now.  I have a 9178 cDAQ with 3 modules in it: a 9203 measuring current, a 9205 measuring Voltage, and a 9234 for accelerometers.  Right now I am trying to use one sample rate for all the modules.  I'm getting confused as to the units "Sample Rate" is represented in on the DAQmx Timing vi.  The 9203 can handle 200 kS/s, the 9205 can handle 250 kS/s, and the 9234 can handle 51.2 kS/s.  I am hoping to acquire 10,000 Samples Per Channel.  What value should I send into the "Sample Rate" on the DAQmx Timing subvi?

Cheers,

Shivels

[GarPar]

Hi shivels-

     This is best described by looking at the Detailed Help for the DAQmx Timing VI.  In LabVIEW, Click on CTRL-H to open the Context Help window.  Mouse over the DAQmx Timing VI and you will see information about this subVI appear in the Conteext Help window.  In that window, click on Detailed Help to get an explanation of all the input and output parameters.  You will see that the Sample Rate is how fast you want to take your samples.  The Samples Per Channel input specifies how many samples you want to take on each channel if your task is finite.  If your task is continuous, this parameter specifies the buffer size.

     I hope this helps.  Have a great day!