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4 separate program as subprogram, Operating sequence, Programming notes – HEIDENHAIN iTNC 530 (34049x-08) User Manual

Page 295: Calling any program as a subprogram

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HEIDENHAIN iTNC 530

295

8.4 Separ

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8.4 Separate program as

subprogram

Operating sequence

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

Press the WINDOW SELECTION soft key: The TNC

superimposes a window where you can select the
program to be called

Select a program with the arrow keys or by mouse

click and confirm by pressing ENT: The TNC enters
the complete path name in the CALL PGM block

Conclude this function with the END key

Alternatively you can also enter the program name or the complete
path name of the program to be called directly via the keyboard.

0 BEGIN PGM A

CALL PGM B

END PGM A

0 BEGIN PGM B

END PGM B

1

3

2

S

R

If you want to program variable program calls in
connection with string parameters, use the SEL PGM
function (see "Defining a program call" on page 454)