Siemens SINUMERIK 840D sl Programming Manual page 375

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")
...
Example 4: Axial deselection of a DRF offset and a $AA_OFF position 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 WHEN TRUE DO $AA_OFF[X]=10 G4 F5
...
N70 CORROF(X,"DRF",X,"AA_OFF")
...
Fundamentals
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
12.10 Deselecting overlaid movements (DRFOF, CORROF)
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).
Comment
; A position offset == 10 is
; The position offset of the X axis is
Comment
; A position offset == 10 is
; Only the DRF offset and the position
Coordinate transformations (frames)
interpolated for the X axis.
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.
interpolated for the X axis.
offset of the X axis are deselected;
the DRF offset of the Y axis is
retained.
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