Can I read the direction on an encoder (Quadrature) using NI 9361 and compact daq?

[gilmaor1]

Hello All,

Can I read the direction on an encoder (Quadrature) using NI 9361 and compact daq?

How can this be achieved? All of the quadrature examples refer to cRio with FPGA.

Thanks!

Gil,

[XM43]

Hi Gil,

I read quadrature encoders on FPGA only but I believe the basic idea would be the same. Which would be, identifying which edge, A or B transitioned first. Say A transitioned before B  it is clockwise and B transitioning before A would mean counter clockwise.

If you have a manual, it should say something like: Leading Edge A- Clockwise direction.

EDIT: I am assuming that you are already reading the quadrature encoder and are just having issue with telling which direction it is should count up or down.

[RTSLVU]

The NI-9361 datasheet gives you the basic theory on how to accomplish this.