HEIDENHAIN TNC 128 (77184x-02) - Manual (Page 192)

Programming: Q Parameters
8.1 Principle and overview of functions
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TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014
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
+/-). The TNC then displays the following soft keys:
Function group Soft key Page
Basic arithmetic (assign, add,
subtract, multiply, divide,
square root) 194
Trigonometric functions 196
Function for calculating circles 197
If/then conditions, jumps 198
Other functions 202
Entering formulas in the part
program 232
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.