HEIDENHAIN TNC 620 (340 56x-01) - Manual (Page 373)

HEIDENHAIN TNC 620 373
9.4 Separ
a
te
Pr
ogr
am as Subpr
ogr
am
9.4 Separate Program as
Subprogram
Actions
1 The TNC executes the part program up to the block in which
another program is called with CALL PGM.
2 Then the other program is run from beginning to end.
3 The TNC then resumes the first (calling) part program with the
block after the program call.
Programming notes
„ No labels are needed to call any program as a subprogram.
„ The called program must not contain the miscellaneous functions M2
or M30. If you have defined subprograms with labels in the called
program, you can then use M2 or M30 with the FN 9: IF +0 EQU +0
GOTO LBL 99
jump function to force a jump over this program
section.
„ The called program must not contain a CALL PGM call into the calling
program, otherwise an infinite loop will result.
Calling any program as a subprogram
 To select the functions for program call, press the
PGM CALL key.
 Press the PROGRAM soft key.
 Enter the complete path name of the program you
want to call and confirm your entry with the END key.
0 BEGIN PGM A
CALL PGM B
END PGM A
0 BEGIN PGM B
END PGM B
1
3
2
S
R
If the program you want to call is located in the same
directory as the program you are calling it from, then you
only need to enter the program name.
If the called program is not located in the same directory
as the program you are calling it from, you must enter the
complete path, e.g. TNC:\ZW35\SCHRUPP\PGM1.H
If you want to call a DIN/ISO program, enter the file type .I
after the program name.
You can also call a program with CYCLE 12 PGM CALL.
As a rule, Q parameters are effective globally with a
PGM CALL.
So please note that changes to Q parameters in
the called program can also influence the calling program.