Siemens SINUMERIK 840Di sl Programming Manual page 206

Path Action
5.3 Continuous-path mode (G64, G641, G642, G643, G644)
Programming
Notice
In continuous-path mode, the programmed contour transitions are not approached exactly.
If a rounding movement initiated by G641, G642, G643, G644 is interrupted, the corner point
of the original contour will be used for subsequent repositioning (REPOS), rather than the
interruption point.
Sharp corners can be produced with G60 or G9.
G64
Or
G641 ADIS=...
Or
G641 ADISPOS=...
Or
G642 ADIS=...
Or
G642 ADISPOS=...
Or
G643 ADIS=...
Or
G643 ADISPOS=...
Or
G644
Note
G644 is not available with an active kinematic transformation. The system switches internally
to G642.
During continuous-path mode, a message is output from the parts program (even in the form
of an executable block), if MSG is programmed with the second call parameter = 1.
MSG("Text", 1)
206
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals