HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 301)

Principle and overview of functions 9.1
9
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
301
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:
Soft key Function group Page
Basic arithmetic (assign, add,
subtract, multiply, divide,
square root) 303
Trigonometric functions 305
Function for calculating circles 306
If/then conditions, jumps 307
Other functions 311
Entering formulas in the part
program 341
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.