Command DefinePosition :

define current position of axis (argin[0]) as argin[1]

DefinePosition Definition
Input Argument	Tango::DEVVAR_DOUBLEARRAY
Output Argument	Tango::DEV_VOID
DisplayLevel	OPERATOR	..
Inherited	false	..
Abstract	false	..
Polling Period	Not polled	..
Command NOT allowed for	FAULT	..