Siemens SINUMERIK 840Di sl - Continuous-Path Mode (G64, G641, G642, G643, G644)

Path Action
5.3 Continuous-path mode (G64, G641, G642, G643, G644)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
205
Note
Machine manufacturer
A machine data item can be set for specific channels which determines that default exact
stop criteria, which deviate from the programmed criteria, will be applied automatically.
These are given priority over the programmed criteria in some cases. Criteria for G0 and the
other G commands in the 1st G-code group can be stored separately, see
/FB1/Function Manual Basic Functions; Continuous-Path Mode, Exact Stop and
Look Ahead (B1).
5.3 Continuous-path mode (G64, G641, G642, G643, G644)
Function
In continuous-path mode, the contour is machined with a constant path velocity. The uniform
velocity also establishes better cutting conditions, improves the surface quality and reduces
the machining time.
Note
Continuous-path mode is interrupted by blocks which trigger a preprocessing stop implicitly
(e.g. access to particular status data of machine ($A...)). The corresponding situation applies
for the auxiliary function outputs.