Siemens SINUMERIK 840D sl Programming Manual

Basic offset
The basic offset describes the coordinate transformation between BCS and BZS. It can be
used, for example, to define the palette zero.
The basic offset comprises:
● External work offset
● DRF offset
● Overlaid movement
● Chained system frames
● Chained basic frames
2.1.4.4 Settable zero system (SZS)
Settable work offset
The "settable zero system" (SZS) is obtained from the basic zero system (BZS) as a result of
the settable work offset.
Settable work offsets are activated in the NC program with the G commands G54 ... G57 and
G505 ... G599.
%=6
6=6
6HWWDEOHZRUNRIIVHW
<
;
=
<
;
=
If no programmable coordinate transformations (frames) are active, then the "settable zero
system" is the workpiece coordinate system (WCS).
Fundamentals
2.1 Fundamental Geometrical Principles
NC programming
40 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based