Rotation Of The Coordinate System (G68, G69) - Siemens Sinumerik 840D sl Programming Manual

3.1.9

Rotation of the coordinate system (G68, G69)

Properties of G68 and G69
A coordinate system can be rotated with the following G functions.
Table 3- 2
G function
G68
G69
G68 and G69 are modal G functions of the G group 16. G69 is set automatically on
activating the control system and resetting the NC.
The blocks containing G68 and G69 should not contain any other G functions.
The rotation of the coordinate system is called with G68 and deselected with G69.
Format
G68 X_ Y_ R_ ;
X_, Y_ :
Absolute coordinate values of the rotation center. The actual position is accepted as the
rotation center if these are omitted.
R_ :
Angle of rotation as a function of G90/G91 absolute or incremental. If R is not specified, the
value of the channel-specific setting from the setting data 42150
$SC_DEFAULT_ROT_FACTOR_R is used as angle of rotation.
ISO Milling
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
G functions for rotating a coordinate system
Function
Rotation of the coordinate system
Deselection of Rotation of the coordinate system
Motion commands
3.1 The coordinate system
G group
16
16
43