HEIDENHAIN TNC 426, TNC 430 357
10.1 Principle and Overview
Calling Q parameter functions
When you are writing a part program, press the “Q” key (in the keypad
for numerical input, below the –/+ key). The TNC then displays the
following soft keys:
Function group Soft key
Basic arithmetic (assign, add, subtract, multiply,
divide, square root)
Trigonometric functions
Function for calculating circles
If/then conditions, jumps
Other functions
Entering formulas directly