Siemens SINUMERIK 840D sl Function Manual page 662

P2: Positioning axes
11.3 Motion behavior and interpolation functions
The existing system variables which refer to the distance-to-go ($AC_PATH, $AC_PLTBB and
$AC_PLTEB) are supported.
Risk of collision
As traversal of another contour is possible with non-linear interpolation, synchronized actions
that refer to coordinates of the original path may not be active.
Selection of interpolation type
The interpolation type that should be effective for G0 is adjusted with the following machine
data:
MD20730 $MC_G0_LINEAR_MODE (interpolation response in G0)
Value
0
1
The desired interpolation response in G0 can also be programmed via the two following part
program commands, independently of the default:
RTLIOF
RTLION
The currently set interpolation response of the path axes with G0 can be queried with system
variable $AA_G0MODE.
Note
In both interpolation types, rapid override is channel-specific.
662
CAUTION
Meaning
In the rapid traversing mode (G0) the non-linear interpolation is active.
Path axes are traversed as positioning axes.
In the rapid traversing mode (G0) the linear interpolation is active.
The path axes are interpolated together.
Deactivating the linear interpolation.
⇒ In the rapid traversing mode (G0), the non-linear interpolation is active.
Activating the linear interpolation.
⇒ In the rapid traversing mode (G0), the linear interpolation is active.
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions