Siemens SINUMERIK 808D User Manual page 318

Now you can see the programmed contour in the graphics window:
Example 2
Starting point: X=0 abs., Y=0 abs., machining plane G17
The contour is programmed in the clockwise direction with dialog selection.
Programming and Operating Manual (Milling)
318
6FC5398-4DP10-0BA6, 09/2017