Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 930)

Allen-Bradley 7300 Series CNC
Tape Compatibility
Appendix D
D-8
Important: 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.
Executing 7300 Part Programs
The system installer has to write PAL program for control to execute in
7300 tape compatibility mode. Refer to your PAL reference manual for
details.
The control allows the Power-Turn-On mode (PTO) of the control to be
specified in AMP with respect to inch/metric (G70/G71) mode and
absolute/incremental (G90/G91) programming mode. For 7300 tape
compatibility, we recommend that you select G70 and G90 for PTO mode.
When 7300 tape compatibility mode is enabled, these modal conditions are
automatically established and cannot be selected in AMP:
G36.1 Short block Acc/Dec enabled
G39.1 Cutter Diameter Compensation circular transition
Important: When programming a G00 in 7300 mode, the 9/Series control
uses the <RAPID OVERRIDE> switch to override the rapid feedrate. This
applies to any programmed rapid move including moves generated by the
fixed cycles or pattern repeats. The operation of the <RAPID
OVERRIDE> switch is very PAL dependent, and can be alter by your
system installer’s PAL logic. Refer to your system installer’s
documentation for details.
The part program can be executed either from tape or control memory. If a
7300 program makes pattern calls, the patterns must reside in control
memory.
The control attains compatible pattern repeat functionality by using an
M98 subprogram call. When the control executes the 7300 pattern repeat
call, it makes these substitutions:
Control Uses: To substitute 7300s: To Indicate:
M98 CP a pattern repeat is called
Pnnnnn name the pattern blocks being called (part program name)
Lmmm r the number of times the pattern blocks get executed
# # end of block
Important: In order for the control to properly execute a M98 subprogram
call, the blocks called by the pattern repeat must be stored under a program
name starting with the letter O, followed by up to 5 numeric characters.
Refer to Section 10.5.9 for information on valid file names.