HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 161)

HEIDENHAIN TNC 128 161
6.1 F
undamentals
Subprograms and program section repeats
If a machining sequence occurs several times in a program, you can
save time and reduce the chance of programming errors by entering
the sequence once and then defining it as a subprogram or program
section repeat. If you wish to execute a specific program section only
under certain conditions, you also define this machining sequence as
a subprogram. In addition, you can have a part program call a separate
program for execution.
Programming with subprograms and program section repeats is
described in Chapter 7.
Programming with Q parameters
Instead of programming numerical values in a part program, you enter
markers called Q parameters. You assign the values to the Q
parameters separately with the Q parameter functions. You can use
the Q parameters for programming mathematical functions that
control program execution or describe a contour.
In addition, parametric programming enables you to measure with the
3-D touch probe during program run.
Programming with Q parameters is described in Chapter 8.