Siemens SINUMERIK 840D sl Programming Manual

X... Y... Z... : Circle end point in Cartesian coordinates.
Depending on the currently valid dimensional notation setting G90/G91
or ...=AC(...) / ...=IC(...), the end point coordinates are interpreted
either in the absolute dimension or in the incremental dimension.
CR=±... : Circle radius
The sign indicates whether the traversing angle is to be greater than or less
than 180°. A positive sign can be omitted.
CR=+... : Traversing angle ≤ 180°
CR=-... : Traversing angle > 180°
Note
There is no practical limitation on the maximum size of the programmable
radius.
Examples
Example 1: Milling
;
<


&5 
&5 
&5 


Program code
N10 G0 X67.5 Y80.511
N20 G3 X17.203 Y38.029 CR=34.913 F500
...
Fundamentals
2.9 Motion commands
NC programming
192 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based