Siemens SINUMERIK 840Di sl - 2.1 Operator panel front; 2.1.1 Keys on the operator panel front

Fundamental Geometrical Principles
1.3 Position of coordinate systems
Fundamentals
24 Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
1.3 Position of coordinate systems
1.3.1 Overview of various coordinate systems
We distinguish between the following coordinate systems:
• The machine coordinate system with the machine zero M
• The basic coordinate system (this can also be the workpiece coordinate system W)
• The workpiece coordinate system with the workpiece zero W
• The current workpiece coordinate system with the current offset workpiece zero Wa
In cases where different machine coordinate systems are in use (e.g., 5-axis transformation),
an internal transformation function mirrors the machine kinematics on the coordinate system
currently selected for programming.
Note
The individual axis identifiers are explained in the section headed "Axis types".
Milling coordinate system:
=
P
;
P
<
P
=
Z
;
Z
<
Z
=
D
;
D
<
D
0
:
:D