Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 503)

Tool Control Functions
Chapter 20
20-19
Value for the
L Parameter
Parameter Definition
P R, X, Y, Z
L12
Geometry table
Offset Number Tool radius geometry value
L13
Wear table
Offset Number Tool radius wear value
Example 20.4
Replacing the Tool Offset Tables Through Programming (G90)
Assume a Z axis geometry value (tool length) of 2 for offset number 4.
N00001 G90;
N00002 G10 L10 P4 Z3; Offset number 4 has a new value of 3 for
tool length.
N00003 G10 L10 P4 Z1; Offset number 4 has a new value of 1 for
tool length.
Example 20.5
Modifying the Tool Offset Tables Through Programming (G91)
Assume a Z axis geometry value (tool length) of 2 for offset number 5.
N00001 G91;
N00002 G10 L11 P5 Z1; Offset number 5 has a new value of 3 for
tool length wear.
N00003 G10 L11 P5 Z3; Offset number 5 has a new value of 6 for
tool length wear
.
The automatic tool management feature is used to monitor the life of a
tool, determine when the tool should be replaced, and provide a
replacement tool when that tool is requested in a program.
This is done by assigning tools to selected groups. Then instead of calling
a specific tool in a program the programmer calls a tool group. The control
then selects the first tool assigned to that group. If that tool has exceeded
its entered tool life then a replacement tool is selected from the next tool
number assigned to that group. If that tool has exceeded its expected tool
life then the next tool in the group is selected. This continues until no
more tools are available in that tool group.
The correct tool length and tool radius offsets are assigned independently
for each tool in the group.
20.5
Automatic Tool Life
Management