HEIDENHAIN TNC 620 (73498x-02) - Manual (Page 268)

Programming: Q Parameters
9.1 Principle and overview of functions
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TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
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:
Function group Soft key Page
Basic arithmetic (assign, add,
subtract, multiply, divide,
square root) 270
Trigonometric functions 272
Function for calculating circles 273
If/then conditions, jumps 274
Other functions 278
Entering formulas in the part
program 309
Function for machining
complex contours See User’s
Manual for Cycles
The TNC shows the soft keys Q, QL and QR when
you are defining or assigning a Q parameter. First
press one of these soft keys to select the desired
type of parameter, and then enter the parameter
number.
If you have a USB keyboard connected, you can
press the Q key to open the dialog for entering a
formula.