Desired position trajectory

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  1. What model of servo are you using?

  2. Describe your control environment. This includes the controller or interface, and any power source.
    I am using labview

  3. Specify the operating mode for applicable models, and any firmware settings you are using.

  4. Include pictures if possible.

  5. Include a full description of the issue.

there is a question about desired position trajectory, I understand when I go position, the desired trajectory will created

my question::

how about the trajectory, this is a discrete trajectory?

how often or how frequency one point of trajectory send to PID controller?