Dear folks,
I am measuring an angular position by an quadrature encoder which have 2500 pulses per revolution and I have a USB-6211 DAQ Board and DAQmx ver. 8.3.0f3 software.
My problem is that in X1, X2 and X4 modes the counter is not counting right to the positive direction; it is telling that 180 degrees is only 90 degrees. Negative direction is going correctly.
In Two Pulse mode both directions are calculated OK but I have problems with Z-pulse which works good only in X-modes.
What do you think? I have changed the A and B signals together and tried an other encoder too but those did not change the results. The positive direction is always half from the real movement.
Best regards,
Ilkka
