Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 327)

Chapter 11
Coordinate Control
11-11
There are 3 methods to change the value of an external offset in the work
coordinate system table. Two methods can be found in the following
chapters:
Method: Chapter:
Manually alter the external offset value in the work coordinate system
table 3
Alter the paramacro system parameter values 5201 - 5206 20
The third method, the one described in this chapter, alters the external
system table through G10 programming. Changing these values in the
table using any of these methods does not cause axis motion; however, it
does immediately shift all work coordinate systems by the amount entered.
The values entered into the external offset are added to the work coordinate
system zero point values each time a work coordinate system is called.
The format for altering the external offset using G10 is as follows:
G10 L2 P0 O__ X__ Z__;
Where : Tell(s) the Control:
L2 that you want to alter the coordinate system tables.
P0 the external offset is the offset to update.
O__ whether the value entered for the diameter axis is a radius or diameter value. (O
is non-modal and it applies to cylindrical grinders only)
O1 =value entered for the diameter axis is a radius value.
O2 =value entered for the diameter axis is a diameter value.
Important: If you program O1 or O2 in a G10 code, the G10 code is not
affected by a previously programmed G07 or G08 (radius/diameter
programming). However, if no O code is specified, or if the O code is out of
range (for example, O3), then the G10 code is affected by a G07/G08.
X_Z_ the location of the zero point of the specified work coordinate system relative to
machine coordinate system.
Important: G10 blocks cannot be programmed when dresser/wheel radius
compensation is active.
Example 11.4 and Figure 11.9 illustrate how the work coordinate system is
shifted using G10.
11.3.1
Altering External Offset
(G10L2)