Absolute And Incremental Dimensions - Siemens SINUMERIK 840D sl Operation/Programming Manual

Creating a ShopTurn Program
4
4.2 Bases

4.2.3 Absolute and incremental dimensions

Absolute dimensions
(ABS)
4-130
When creating a sequential control program, you can input positions in
absolute or incremental dimensions, depending on how the workpiece
drawing is scaled.
You can also use a mix of absolute and incremental dimensions, i.e.
one coordinate in the absolute dimension and the other in incremental
dimension.
For the plan axis (the X-axis, in this case), it is established in machine
data whether the diameter or radius is programmed in absolute or
incremental dimensions.
Please also refer to the machine manufacturer's instructions.
With absolute dimensions, all position specifications refer to the zero-
point of the active coordinate system.
P4
P3
35
Absolute dimensions
The position specifications for the points P1 to P4 in absolute
dimensions refer to the zero-point:
P1: X25 Z-7.5
P2: X40 Z-15
P3: X40 Z-25
P4: X60 Z-35
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
X
P2
P1
Z
7.5
15
25
♥ Siemens AG, 2005. All rights reserved
08/2005
4