Siemens SINUMERIK 840D sl Programming Manual page 212

Frames
6.1 Coordinate transformation via frame variables
$P_ACTFRAME
Current, resulting complete frame that results from chaining
• the current basic frame variable $P_BFRAME,
• the currently settable frame variable $P_IFRAME with system frames and
• the currently programmable frame variable $P_IFRAME with system frames.
System frames, see Section "Frames that Act in the Channel"
$P_ACTFRAME describes the currently valid workpiece zero.
6-6
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
Job planning