Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 440)

Power-up G-code Parameters
Chapter 19
19-8
Function
This parameter selects the default G-code for modal group 8. The selected
G-code specifies whether the control operates under G43, G44, or G49 at
power-up or reset. This parameter is used for mill and surface grinder
applications only.
G--code Active Mode
G43 Tool Length Offset, Plus
G44 Tool Length Offset, Minus
G49 Tool Length Offset Cancel
Axis Parameter Number
Single Process Process 1 Process 2
All [528] [20528] [21528]
Range
Selection Result
(a) G49 (offset cancel)
(b) G43 (+ offset)
(c) G44 (-- offset)
Notes
For dual--processing controls, this is a per process parameter. The value set
in the parameters applies to all of the axes assigned to that process.
19.7
PTO G-code For Modal
Group 8