Pseudo motor API reference¶

A pseudo motor has a state, and a position attributes. The state indicates at any time if the pseudo motor is stopped, in alarm or moving. The state is composed from the states of all the physical motors involved in the pseudo motor. So, if one of the motors is in moving or alarm state, the whole pseudo motor will be in that state. The position, indicates the current position.

The other pseudo motor’s attributes are:

drift correction

Flag to enable/disable drift correction while calculating physical motor(s) position(s). When enabled, the write sibling(s) position(s) will be used, when disabled, the read sibiling(s) position(s) will be used instead. By default drift correction is enabled.

drift_correction

siblings

List of other psuedo motor objects that belongs to the same controller.

siblings

The available operations are:

start move absolute

Starts to move the pseudo motor to the given absolute position.

start_move()

stop

Stops the pseudo motor motion, by stopping all the physical motors, in an orderly fashion.

abort

Stops the pseudo motor motion, by stopping all the physical motors, as fast as possible (possibly without deceleration time and loss of position).