Siemens SINUMERIK 828D Programming Manual page 306

Coordinate transformation (FRAMES)
5.7 NCU global frames
$P_CHBFRMASK and $P_NCBFRMASK complete basic frame
The system variables
frames to include in the calculation of the "complete" basic frame. The variables can only be
programmed in the program and read via the operator panel interface. The value of the
variable is interpreted as bit mask and determines which basic frame field element of
$P_ACTFRAME
$P_CHBFRMASK
$P_NCBFRMASK
calculation.
When the variables are programmed, the total basic frame and the total frame are calculated
again. After a reset and in the default setting, the value of
$P_CHBFRMASK = $MC_CHBFRAME_RESET_MASK
$P_NCBFRMASK = $MC_CHBFRAME_RESET_MASK
e.g.,
$P_NCBFRMASK = 'H81'
$P_CHBFRMASK = 'H11'
$P_IFRAME Current settable frame
The predefined frame variable
frame, which is valid in the channel, in the parts program. The written settable frame is
immediately included in the calculation.
In the case of NCU-global settable frames, the modified frame acts only in the channel in
which the frame was programmed. If the frame is to be modified for all channels of an NCU,
$P_UIFR[n]
activate the corresponding frame, e.g., with G54.
$P_PFRAME Current programmable frame
$P_PFRAME
G58/G59
CMIRROR
Current, programmable frame variable that establishes the reference between the settable
● zero system (SZS) and the
● workpiece coordinate system (WCS)
P_ACTFRAME Current complete frame
The resulting current complete frame $P_ACTFRAME is now a chain of all basic frames, the
current settable frame and the programmable frame. The current frame is always updated
whenever a frame component is changed.
$P_ACTFRAME
$P_PARTFRAME
$P_TOOLFRAME
306
$P_CHBFRMASK
is included in the calculation.
can be used to define which channel-specific basic frames are included, and
can be used to define which NCU-global basic frames are included in the
;$P_NCBFRAME[0] : $P_NCBFRAME[7]
;$P_CHBFRAME[0] : $P_CHBFRAME[4]
and must be written simultaneously. The other channels must then
$P_IFRAME
is the programmed frame that results from the programming of
, ,
ROT/AROT SCALE/ASCALE
, to the programmed FRAME.
CSCALE
corresponds to
: :
$P_SETFRAME
: :
$P_WPFRAME $P_TRAFRAME
and
$P_NCBFRMASK
and
.
can be used to read and write the current settable
$P_IFRAME
, or from the assignment of
MIRROR/AMIRROR
:
$P_EXTFRAME $P_ACTBFRAME
:
$P_PFRAME
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
can be used to select, which basic
TRANS/ATRANS
: :
$P_IFRAME
:
$P_CYCFRAME
,
, ,
CTRANS CROT
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