Transformation Of Coordinates Transmit - Siemens SINUMERIK 880 Programming Manual

4 Programming of Motion Blocks
4.2.10 Transformation of coordinates TRANSMIT, G131,G231,G331
4.2.10 Transformation of coordinates TRANSMIT, G131,G231,G331
TRANSMIT, G131, G231, G331" function is an Option.
The coordinate transformation TRANSMIT is applied in end face milling of turned parts. A
fictitious (Cartesian) coordinate system is used for programming whilst machine movements
are effected in the real machine coordinate system. Special fictitious axes must be defined for
the fictitious coordinate system.
The name of the fictitious axes and their position in the system can be selected freely.
A fictitious axis can be traversed only with the transformation selected. Each transformation is
defined by a transformation data block using machine data. The block contains the axes used
in transformation, transformation type, channel number and the corresponding G function.
Three different TRANSMIT transformation data blocks can be defined with the G functions
G131, G231 and G331.
If transformation of coordinates TRANSMIT is selected, plane G17 is active as standard.
TRANSMIT is selected by G functions G131, G231 or G331. The selection block must not
contain any traversing movements or additional functions. A transformation may be activated
from the reset position only, i. e. transition to another transformation is only possible after a
deselection block has been applied.
Deselection is effected either by the deselection block (G130, G230, G330) in the AUTO-
MATIC mode or via the command channel. There is no fixed allocation between selecting and
deselecting functions. G130 can also be used to deselect G131, for example.
Machine data is used to define whether the
transformation is deselected on RESET or if the
Machine data also defines a different
transformation action on change of mode.
transformation is active, no zero offsets in
4–34
The " Transformation of coordinates
The order code is: B65
transformation state remains effective.
While TRANSMIT or 2D/3D coordinate
real axes are taken into account!
© Siemens AG 1991 All Rights Reserved
01.93
6ZB5 410-0HD02
SINUMERIK 880, (PG)