Siemens Sinumerik 840D sl Programming Manual page 293

$P_PFRAME
Current, programmable frame variable that establishes the reference between the settable
zero system (SZS) and the workpiece coordinate system (WCS).
$P_PFRAME contains the resulting frame, that results
• from the programming of TRANS/ATRANS, ROT/AROT, SCALE/ASCALE, MIRROR/
AMIRROR or
• from the assignment of CTRANS, CROT, CMIRROR, CSCALE to the programmed FRAME
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Coordinate transformation (FRAMES)
5.1 Coordinate transformation via frame variables
293