Siemens sinumerik 840d Programming Manual page 216

Frames
6
6.9 NCU-global frames (SW 5 and higher)
840D 840D
NCU 571 NCU 572
NCU 573
$P_ACTBFRAME
Total base frame
The variable $P_ACTBFRAME determines the
chained total base frame. The variable can only be
read.
$P_ACTBFRAME corresponds to
$P_NCBFRAME[0] : ... : $P_NCBFRAME[n] :
$P_CHBFRAME[0] : ... : $P_CHBFRAME[n].
6-216
FM-NC 810D 840Di
Y
BCS
BCS
$P-ACTBFRAME = $P_NCBFRAME[0] : $P_NCBFRAME[n] : $P_CHBFRAME[0] : $P_CHBFRAME[n]
Y
MCS
MCS
MCS = Machine coordinate system
BOS = Basic origin system
Y Y
BOS
$P_ACTBFRAME
BOS
$P_CHBFRAME[n], n programmable via $MC_MM_NUM_BASE_FRAMES
$P_CHBFRAME[0] = $P_BFRAME
$P_NCBFRAME[n], n programmable via $MN_MM_NUM_GLOBAL_BASE_FRAMES
$P_NCBFRAME[0]
Y
Y
BOS
BCS
BOS
Chained field of base frames
channel-spec. and / or NCU-global
DRF offset, external zero offset
BCS
Kinematic transformation
BCS = Basic coordinate system WCS = Workpiece coordinate system
SZS = Settable zero system
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
12.98
X
BOS
X
X
BCS
BOS = Basic origin system
BCS = Basic coordinate system
Y
WCS
Y
SZS
WCS
programmable FRAME
SZS
G54...G599 settable FRAMES,
channel-spec. and/or NCU-global
X
X
BCS
X
MCS
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6
X
WCS
X
SZS
BOS