Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 326)

Coordinate System Offsets
Chapter 11
11-10
Figure 11.8
External Offsets
G54
G54
G56
G56
Y
Y
Y
Y
X
X
X
X
Work coordinate systems
prior to external offset
Work coordinate systems
after to external offset of
Y.7 X-3.4
Machine coordinate
system zero point
Y+4.0
X-6.5
Y+3.3
X-3.1
Y+4.1
X+1.1
Y+3.4
X+4.5
Important: Once an external offset is entered into the coordinate offset
table it cannot be canceled. This offset remains active even after power
has been turned off. It becomes a permanent part of all work coordinate
systems including the default work coordinate system.