Siemens SINUMERIK 828D Programming Manual page 390

Coordinate transformations (frames)
12.10 Deselecting overlaid movements (DRFOF, CORROF)
Examples
Example 1: Axial deselection of a DRF offset (1)
A DRF offset is generated in the X axis by DRF handwheel traversal. No DRF offsets are
operative for any other axes in the channel.
Program code
N10 CORROF(X,"DRF")
...
Example 2: Axial deselection of a DRF offset (2)
A DRF offset is generated in the X and Y axes by DRF handwheel traversal. No DRF offsets
are operative for any other axes in the channel.
Program code
N10 CORROF(X,"DRF")
...
Example 3: Axial deselection of a $AA_OFF position offset
Program code
N10 WHEN TRUE DO $AA_OFF[X]=10 G4 F5
...
N80 CORROF(X,"AA_OFF")
...
390
Comment
; CORROF has the same effect as DRFOF here.
Comment
; Only the DRF offset of the X axis is deselected; the DRF
offset of the Y axis is retained (in the case of DRFOF
both offsets would have been deselected).
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Comment
; A position offset == 10 is
interpolated for the X axis.
; The position offset of the X axis is
deselected with: $AA_OFF[X]=0
The X axis is not traversed.
The position offset is added to the
current position of the X axis.
Fundamentals