Siemens SINUMERIK 840D sl Programming Manual page 653

Frame chaining
The current frame is composed of the complete basic frame, the settable frame, the system
frame and the programmable frame in accordance with the current complete frame specified
above.
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Frame chain
Chained system frames for PAROT, set actual value, scratching,
zero offset external
Handwheel (DRF) offset, superimposed movement,[zero offset
external]
Kinematic transformation
Home position offset
MCS = Machine Coordinate System
BZS = Basic Zero System
3.8 Coordinate transformations (frames)
Frame for cycles, programmable frame;
transformations
System frame for TOROT (TOFRAME),
workpieces
G54 ... G599 set frame,channel-spec. or
NCU-global
Chained array of basic frames, channel-spec.
and/or NCU global
BCS = Basic Coordinate System WCS = Workpiece Coordinate System
SZS = Settable Zero System
Work preparation
WCS
SZS
BZS
BCS
MCS
653