Implicit Frame Changes; Frames And Switchover Of Geometry Axes - Siemens SINUMERIK 840D sl Function Manual

K2: Axis Types, Coordinate Systems, Frames
10.5 Frames
Note
Cycle programming
The frame variables of the system frames are only for the cycle programming. Therefore, in
NC programs the system frames should not be written directly by the user, but rather only via
system functions such as TOROT, PAROT, etc.
Channelspecific active system frames
System variables of the active channel-specific system frames:
System variable
$P_SETFRAME
$P_EXTFRAME
$P_PARTFRAME
$P_TOOLFRAME
$P_WPFRAME
$P_CYCFRAME
$P_TRAFRAME
$P_ISO1FRAME
$P_ISO2FRAME
$P_ISO3FRAME
$P_ISO4FRAME
$P_RELFRAME
If a channel-specific system frame of the data management is not parameterized, the following
applies for the corresponding active system frame: $P_<system frame> == zero frame.
Channel-specific active SZS (ACS) complete frame
The system variable $P_ACSFRAME is used to read which system frames form the SZS (ACS)
coordinate system. The specification is made via the machine data described above. See
Subsection "Machine data" > "Parameterization of the SZS (ACS) coordinate system"
10.5.6

Implicit frame changes

10.5.6.1

Frames and switchover of geometry axes

In the channel, the geometry axis configuration can be changed by switching a transformation
on and off and with the GEOAX() command (R3).
Machine data
MD10602 $MN_FRAME_GEOAX_CHANGE_MODE
can be used to configure, for all channels of the system, whether the current complete frame
is calculated again on the basis of the new geometry axes or whether the complete frame is
deleted.
740
Meaning: Active system frame for
Actual value setting and scratching (Set Frame)
External work offset (Ext Frame)
TCARR and PAROT for orientable toolholder (Part Frame)
TOROT and TOFRAME (Tool Frame)
Workpiece reference points (WorkPiece Frame)
Cycles (Cycle Frame)
Transformations (Transformation Frame)
G51.1 mirroring (ISO)
G68 2DROT (ISO)
G68 3DROT (ISO)
G51 scale (ISO)
Relative coordinate systems
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions