HEIDENHAIN TNC 320 (340 551-02) - Manual (Page 335)

HEIDENHAIN TNC 320 335
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Programming notes
You can mix Q parameters and fixed numerical values within a
program.
Calling Q parameter functions
When you are writing a part program, press the “Q” key (in the
numeric keypad for numerical input and axis selection, below the +/–
key). The TNC then displays the following soft keys:
Some Q parameters are always assigned the same data by
the TNC. For example, Q108 is always assigned the
current tool radius (see “Preassigned Q Parameters,”
page 388).
Function group Soft key Page
Basic arithmetic (assign, add, subtract,
multiply, divide, square root) Page 337
Trigonometric functions Page 339
Function for calculating circles Page 341
If/Then conditions, jumps Page 342
Other functions Page 345
Entering formulas directly Page 376
Formula for string parameters Page 380