Siemens SINUMERIK 840D sl Programming Manual page 940

Glossary
Zero offset
Specifies a new reference point for a coordinate system through reference to an existing
zero point and a → frame.
1. Settable
2. External
3. Programmable
940
SINUMERIK 840D: A configurable number of settable zero offsets are available for each
CNC axis. The offsets - which are selected by means of G functions - take effect
alternately.
In addition to all the offsets which define the position of the workpiece zero, an external
zero offset can be overridden by means of the handwheel (DRF offset) or from the PLC.
Zero offsets can be programmed for all path and positioning axes using the TRANS
statement.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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