HEIDENHAIN TNC 320 (340 55x-03) - Manual (Page 379)

HEIDENHAIN TNC 320 379
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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 434.
Function group Soft key Page
Basic arithmetic (assign, add, subtract,
multiply, divide, square root) Page 381
Trigonometric functions Page 383
Function for calculating circles Page 385
If/then conditions, jumps Page 386
Other functions Page 389
Entering formulas directly Page 422
Formula for string parameters Page 426