HEIDENHAIN SW 68894x-02 - Manual (Page 412)

412 ICP programming
5.1
1
C
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ining
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rn
Representation of the ICP elements in the
smart.Turn program
Each ICP dialog in smart.Turn programs is followed by a section
code of further G commands. A hole or milling contour (standard figure
and complex contour) contains the following commands:
 Section code (with reference data of this section):
 FRONT (XC plane)
 SURFACE (ZC plane)
 FACE_Y (XY plane)
 SURFACE_Y (ZY plane)
 G308 (with parameters) as "beginning of the reference plane"
 G function of the figure or hole; sequence of commands with
patterns or complex contours
 G309 as "end of a reference plane"
In nested contours a reference plane begins with G308, the next
reference plane with the next G308, etc. When the deepest level is
finally reached, this reference plane is concluded with G309. Then the
next reference plane is concluded with G309 etc.
Note the following points if you describe milling contours or holes with
G commands and then machine them with ICP:
 Some parameters are redundant in the DIN contour description. For
example, the milling depth can be programmed in the G308 and/or
in the G function of the figure. This redundancy does not appear in
ICP.
 In DIN programming of figures you have the choice between a
Cartesian or polar center dimensioning. The center of the figures is
entered in ICP in Cartesian coordinates.
Example: In the DIN contour description, the milling depth is
programmed in G308 and in the figure definition. If this figure is
changed with ICP, it overwrites the milling depth from G308 with the
milling depth from the figure. When saving, ICP saves the milling
depth in G308. The G function of the figure is saved without milling
depth.
Example: "Rectangle on the face"
. . .
FRONT Z0
N 100 G308 ID"FACE_1" P-5
N 101 G305 XK40 YK10 A0 K30 B15
N 102 G309
Example: "Nested figures"
. . .
FRONT Z0
N 100 G308 ID"FACE_2" P-5
N 101 G307 XK-40 YK-40 Q5 A0 K-50
N 102 G308 ID"FACE_12" P-3
N 103 G301 XK-35 YK-40 A30 K40 B20
N 104 G309
N 105 G309
 If you use ICP to edit contour descriptions that were
created with G functions, redundant parameters are
lost.
 If you load a figure with a center in polar dimensions, the
center is converted to Cartesian coordinates.