Does the contoured move uses the PID parameters and position feedback?

[bgrain]

Hello

I want to use the contourd move to generate a continuous movement,but i do not know if this kind of move just acst like a open-loop move .What i means is does it sends the target position directly to the DAC without the PID loop and position feedback? 

[Jochen]

The PID controller is still enabled when running the motor in contouring mode. Otherwise you couldn't do any position control at all. On a board level the only major difference between contouring mode and any other mode is the source of the dynamic setpoints passed to the PID loop through the spline engine. While in contouring mode the setpoint information comes from the buffer in the onboard RAM, in other modes it is dynamically calculated by the trajectory generator on the board.

Best regards,

Jochen Klier
National Instruments Germany