Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 485)

Chapter
20
20-1
Tool Control Functions
Tool control functions can be classified into 3 categories:
Tool Selection- Programming a T--word and using random tool and
tool life management to help select a tool
Tool length offsets-compensate for the difference between the tool
length assumed while programming, and the actual length of the tool
used for cutting (see chapter 21 for details on tool diameter offsets using
cutter compensation).
Modify or enter data within the offset tables by programming the correct
G10 code. For details see section 20.4.
Enter tool length offsets and cutter compensation data in to the control’s
offset table (see section 3.1). Once entered, call for a particular set of data
by programming an H-- (tool length data) or a D-- (tool diameter data) word
that corresponds to a offset number from the offset table.
A workpiece usually requires different kinds of cutting processes, and
usually there are cutting tools that correspond to each process. The cutting
tools are typically stored in a tool magazine and are assigned tool numbers
(see Figure 20.1).
20.0
Chapter Overview
20.1
Programming a T- word