HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 191)

TNC 425/TNC 415 B/TNC 407 7-6
7 Programming with Q Parameters
7.2 Describing Contours Through Mathematical Functions
Press the “basic arithmetic” soft key to call the following functions:
Overview
The mathematical functions assign the result of one of the following
operations to a Q parameter:
Soft key
FN0: ASSIGN
e.g. FN0: Q5 = +60
Assigns a fixed numerical value.
FN1: ADDITION
e.g. FN1: Q1 = –Q2 + -5
Calculates and assigns sum of two values.
FN2: SUBTRACTION
e.g. FN2: Q1 = +10 - +5
Calculates and assigns difference between two values.
FN3: MULTIPLICATION
e.g. FN3: Q2 = +3
∗
+3
Calculates and assigns product of two values.
FN4: DIVISION
e.g. FN4: Q4 = +8 DIV +Q2
Calculates and assigns quotient of two values.
Division by 0 is not permitted
FN5: SQUARE ROOT
e.g. FN5: Q20 = SQRT 4
Calculates and assigns the root of a number.
Square root of a negative number is not permitted
In the above table, "values" can be:
• two numbers
• two Q parameters, or
• a number and a Q parameter
The Q parameters and numerical values in the equations can be entered
with positive or negative signs.
Q
To select a mathematical operation:
Select “basic arithmetic.”
Select FN3: multiplication, for example.