Siemens Sinumerik 802D sl Programming Manual page 76

Movement Control Commands
3.4 Tool offset functions
Nose R offset commands
S Designation of tool offset amount
The tool offset amount is called by T command.
S Designation of tool nose radius compensation function ON
To designate ON/OFF of the tool nose radius compensation function use the
following G codes.
Table 3-7
G code
G40
G41
G42
G40 and G41/G42 are modal G codes in group 07, and once designated the speci-
fied G code mode remains valid until another G code is specified. When the power
is turned ON or the CNC is reset, the G40 mode is set.
To enter the tool nose radius compensation mode, specify either G41 or G42 with
a T code.
Fig. 3-14
The tool nose radius compensation direction can be changed over between "to the
right" and "to the left" by specifying G41 or G42 during the execution of a program.
It is not necessary to cancel the nose R offset mode by specifying G40 or deselec-
ting the tool before changing over direction of offset. To cancel the tool nose radius
compensation mode, specify G40.
3-76
G codes used for turning ON/OFF tool nose radius compensation func-
tion
Tool nose radius compensation cancel
Tool nose radius compensation, left (nose R center is
at the left side)
Tool nose radius compensation, right (nose R center
is at the right side)
+X
Designation of tool nose radius compensation direction
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning - - 04.07 Edition
Function
Offset to the right (G42)
Offset to the left (G41)
© SIEMENS AG 2007 All rights reserved
04.07
Group
07
07
07
+Z