Command SetupUnitMove :

prepares a move, calulates the new step position from the argument, the calibration value
and the conversion factor, takes backlash into account, sets FlagMotorReady

SetupUnitMove Definition
Input Argument	Tango::DEV_DOUBLE	final position, in units
Output Argument	Tango::DEV_LONG	completion status
DisplayLevel	OPERATOR	..
Inherited	false	..
Abstract	false	..
Polling Period	Not polled	..
Command allowed for	All states	..