slow data aquisition in while loop with USB 6009

[bell47]

hello, i'm very new  working with Lab view and using an USB 6009. I have the problem of very slow loop speeds when aquising data in a while loop  (the loop is running only about 300 times a second) How can I get this faster? I want to count the signals (0 Volt, 5 Volt) of an linear encoder with the analoginputs of  the device (the USB 6009 has only one counter input so I can not get the direction of motionwith only one) Do you have any good ideas how I can manage this ?

Thank you very much for your help!

[devchander]

Sounds like are you performing a single point acquisition

Try continuous acquisition

Look at theDAQmx Continous acquisition examples that are available, in Examples shipped with LabVIEW