Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 860)

Allen-Bradley 7300 Series CNC
Tape Compatibility
Appendix D
D-10
Pattern Repeat
A pattern repeat is a series of blocks of information repeated a specified
number of times for a specified function. A pattern repeat is called in 7300
mode with the following format:
(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.
You can store patterns 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 to the file name you have just
entered for the pattern repeat; this way, you do not need to modify your
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:
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 have a 7300 part program that has a pattern named
BL-M008-001. When you stored the part program 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.
The (DP) block is saved in memory as part of the program, and it is treated
as a comment block during the execution of the part program.