Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 328)

Coordinate System Offsets
Chapter 11
11-12
Example 11.4
Changing the External Offset Through G10 Programming
Program Block Comments
G10L2P1X-15.Y-10.; defines work coordinate system zero point to be
at X-15, Y-10 from the machine coordinate system
zero point
G90;
G10L2P0X-15.Y-20.; sets external offset of X-15, Y-20 moving work
coordinate system zero point to be at X-30, Y-30
from the machine coordinate system zero point
Important: This modification is permanent; the new table values for the
work coordinate systems are saved even when control power is turned off.
Figure 11.9
Results of Example 11.4
Machine coordinate system
zero point
Work coordinate system
zero point as defined in
table to be Y-15., X-10.
Work coordinate system zero point after
execution of the block G10L2P0X-15.Y-20.;
10 20 30
10 20
20
10
20
10
30
Y Y
X
X