Function for homing an axis. The dynamic parameters for homing are programmable and refer to all phases of the homing procedure. Note Exception The homing approach velocity can be programmed in the command. The homing approach velocity, homing entry velocity and the homing deceleration velocity are set during configuration. The execution sequence for active homing ('homingMode:=ACTIVE_HOMING') is set during configuration. The criteria for passive homing ('homingMode:=PASSIVE_HOMING') are set during configuration independently from the active homing. An axis has the 'referenced' or 'homed' status when the axis coordinate system has been aligned with the homing signal. The status can be read from the 'positioningState.homed' system variable.