Global sub-routines (Call L <string>)

The call of a global sub-routine is done with

L <string> or  L <string>

<string> Name of global sub-routine

Global sub-routines (GUP) are present as independent program units in a separate data file. The call up of a global sub-routine does not take place via the sub-routine name, but via the designation of this data file, which again can consist of local sub-routines and a main program. The specification of a name of global sub-routine (%<Prog_Name>) is only necessary to indicate after the local sub-routines the beginning of the main program (here used as global sub-routine). Thus it can be omitted, in case no local sub-routines are present in the data file.

The calling main program is, likewise, stored as an independent program unit in another data file. Global sub routines can be called form all the main programs.

Programming example

Call of local and global sub-routines

%L LUP (Local sub-routine) 
N11 .....
N12 .....
.
.
N19 M17 (M17 can be left out)
%333 (Main program) 
N100 .....
N105 .....
N110 LL LUP (Call up of local sub-routines LUP)
.
N200 L GUP_FILE (Call up of global sub-routines via the name of the)
. (data file, in which this GUP is stored)
N300 M30

In the next example, the name of the global sub-routine can be omitted since the call take place via the name of the data file and in this data file no local sub-routines are present.

Programming example

Structure of data file GUP_FILE with global sub-routine:

(globale subroutine GUP)
N10 .....
.....
N90 M17 (Here an M17 or M29 is mandatory)

Survey of program definition and program call:

Main program

Definition:	%PROG_NAME or % PROG_NAME	Program definition is necessary only when local sub-routines are present
Call:	By operating console by specifying the file name

Global sub-routines

Definition:	Like main program
Call from NC-program:	LFILE_NAME or L FILE_NAME

Local sub-routines

Definition:	%L PROG_NAME	Blank between "L" and program definition, since otherwise the definition of a main program will be assumed
Call from NC-program:	LL PROG_NAME	Blank between "LL" and program-call, since otherwise the call of a global sub-routine will be assumed

	If in a file outside the comments, a character is noticed as the first character that is neither a separating character nor a "%", then this character is evaluated as the first character of an unnamed main program. This also means that in front of "%", no block numbers may be programmed.