On the Fly Trajectory Modification by Galil

Many applications require an axis to precisely follow a randomly generated position target. Some examples of applications that may use this mode are satellite tracking, missile tracking, random pattern polishing of mirrors or lenses, or any application that requires the ability to change the endpoint without completing the previous move. The Galil controller may be placed in the position tracking mode to support changing the target of an absolute position move on the fly. Absolute position commands are typically specified at random by the host computer whether or not the axis is in motion. The axis under control must be ready to move to the new position in a controlled fashion. To accommodate this requirement, a new mode of motion called Position Tracking has been added to the standard firmware. In this mode, a new absolute position may be specified even if the axis is in motion.

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