Acu-Rite CNC 3500i User Manual

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File Inclusion
File inclusion is a function that allows a sub-program that is not actually 
part of the program to be called from the main program, or from 
another sub-program in the program. 
In this way, a tool change sub-program or a macro can be stored in the 
directory, and called from any other program that has the proper "file 
inclusion" code, which allows the execution of the external 
sub-program.
Format: open left bracket ([), then double quote character ("), then the 
program name and its extension. This line must display somewhere in 
the program that is to call the "included" program.
In this way, the same sub-program can be used in many programs, but 
you do not need to type it into each program.  Each program must 
contain the proper “program inclusion” block.
The program to be included must be in the form of a sub-program, 
beginning with Onnn, and ending with the M99 code.
The format for program inclusion is: “FILENAME.G”.
It is especially useful for including tool change sub-programs, 
zero-setting sub-programs, and macros.
Example 1:  ["FILENAME.G
Example 1 shows the syntax necessary to "include" a program into 
another program.