Predefined Frame Variable ($P_Bframe, $P_Iframe, $P_Pframe, $P_Actframe) - Siemens SINUMERIK 840D sl Programming Manual

6.1.1 Predefined frame variable ($P_BFRAME, $P_IFRAME, $P_PFRAME,
$P_ACTFRAME)
$P_BFRAME
Current basic frame variable that establishes the reference between the basic coordinate
system (BCS) and the basic origin system (BOS).
For the basic frame described via $P_UBFR to be immediately active in the program, either
• you have to program a G500, G54...G599, or
• you have to describe $P_BFRAME with $P_UBFR
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
6.1 Coordinate transformation via frame variables
Frames
6-3