Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 929)

Allen-Bradley 7300 Series CNC
Tape Compatibility
Appendix D
D-7
At this time, the control creates an internal cross-reference table for all
pattern repeat names. The cross-reference table is generated so that any
blocks that call pattern repeat do not need to be rewritten using the new
program name. Refer to the section on Pattern Repeat for details.
You can not copy pattern repeat programs from memory to memory.
Doing so does not create the necessary cross-reference table.
Pattern Repeat
(CP, name, r)#
where:
Name: Indicates:
CP a pattern repeat is called
name the pattern blocks being called (part program name)
r the number of times the pattern blocks get executed
# end of block
Important: The patterns called must be saved as independent part
programs and copied into control memory from a peripheral device. You
can not create new pattern repeat programs online. A maximum of 20
patterns can be copied into the controls memory.
You can store more than one pattern in the control by using the COPY
PRGRAM softkey function. The control requires that a new program
name be entered for each pattern. The control automatically creates an
internal cross-reference table of 7300 pattern names. This cross-reference
table consists of the subprogram file name called by the main program, and
the new file name entered for the pattern repeat. The control takes the first
program start code from the tape and corresponds it with the file name you
have just entered for the pattern repeat; this way, you do not need to
modify you main program so that it still calls the correct pattern. This
cross-reference table is maintained by the control and it is transparent to
you. For example:
You have a 7300 part program that has a pattern named
BL-M008-001. When you stored the pattern to the control, the
control prompted you for a name, you entered O00001. The part
program and the pattern are now stored in the memory. At this point,
the control searches for the program start code on the tape and takes
the code and matches it with O00001. When this pattern name is
called, the control automatically searches the cross-reference table
for BL-M008-001 and executes O00001.