Siemens SINUMERIK 840Di sl Programming Manual page 105

Note
In the default setting, G17 (X/Y plane) is defined for milling and G18 (Z/X plane) is defined
for turning.
When calling the tool path correction G41/G42 (see Section "Tool offsets"), the working
plane must be defined so that the controller can correct the tool length and radius.
Example of milling
The "conventional" approach with milling tool:
• Define working plane (G17 default setting for milling).
• Select tool type (T) and tool offset values (D).
• Switch on path correction (G41).
• Program traversing movements.
N10 G17 T5 D8
N20 G1 G41 X10 Y30 Z-5 F500
N30 G2 X22.5 Y40 I50 J40
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
3.7 Selection of working plane (G17 to G19)
;G17 Call the working plane, in this case: X/Y T,
;D tool call. Tool length compensation is
performed in the Z direction.
;Radius compensation is performed in the X/Y
plane.
;Circular interpolation/tool radius compensation in
;the X/Y plane.
Positional Data
105