Why is Sample to Read important in Continiuos acquisition mode?

[Mehdi Nazarinia]

Dear Sir/Madam,

I am using continious acquisition mode in DAQ Assist in LabVIEW 8.0. I don't know why Samples to read is important here then? Shouldn't frequency or rate of sampling be important only here?

Regards,

Mehdi.

[Somnatic]

I  !!! THINK !!! that this has to do with the buffer size which is read. After a specific buffer is filled, it gets transferred to the host computer. That buffer is defined by the samples.

[Justin_M]

Hi Mehdi,

Somnatic is correct.  DAQmx uses the 'samples to read' value to set the necessary buffer size.  For more info, check out the LabVIEW Help file under Taking Measurements >> NI-DAQmx Key Concepts >> Reading and Writing Data >> Buffering >> How Is Buffer Size Determined?

Thanks,

Justin M.

National Instruments