Siemens SINUMERIK 840DE

Positional Data
3.2 Absolute/relative dimensions
Fundamentals
3-6 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
3.2.2 Incremental dimensions (G91, X=IC)
Function
With the G91 command or the non-modal statement IC, you determine the descriptive
system for approaching individual axes from setpoints in incremental dimensions.
You program how far the tool is to travel.
Programming
G91
Or
X=IC(...) Y=IC(...) Z=IC(...)
Parameters
G91 Relative incremental dimensioning
X Y Z Axis identifiers of the axes to be traversed
=IC Incremental dimensions non-modally effective
Example of milling
The dimensions refer to the last point approached.
The circle center point coordinates of the circle interpolation are stated non-modally in
absolute coordinates, since as default the circle center point is independent of G91.
For entering the circle center point coordinates I and J see circle interpolation G2/G3.
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