07-12-2011 02:31 AM
Hello,
I am a newbie to this NI usb 6009 device.
What I'm trying to do here is to hook up a cable from a D-sub cable and collect digital signal.
I have noticed that this device is suitable for collecting at every 500 ms. Is this correct?
I need faster sampling rate and can't find how to do.
Currently the only way I can collect is by setting device manager as 'on demand'.
Thanks in advance for your help!
-E
07-12-2011 03:31 AM
Yes, you should certainly be able to collect data every half a second.
Have you tried the 'DAQ Assistant' tool (found on the Measurement I/O / NI-DAQmx palette) ? It will guide you through the setup needed to create the code to configure your hardware.
Ian
07-12-2011 06:11 AM
Thanks Ian,
Actually yes, I could collect at every 500 ms but is there any way I can collect more frequently?
Such as every 10 ms or less?
Using 'DAQ assistant' I could only use 'on demand' functionality.
-E
07-12-2011 09:27 AM
When you look at the specs, notice that the digital I/O is software timed. You cannot specify anything other 'on demand'. You may be able to acquire as fast as 10ms but it will be subject to quite a bit of jitter.
07-12-2011 07:17 PM
Ah ic..
Thanks 🙂
-E