HEIDENHAIN TNC 410 - Manual (Page 221)

10 Programming: Q Parameters 208
1
0.3 Descr
ibing Cont
ours T
h
rough Mathematical F
unctions
10.3 Describing Contours Through
Mathematical Functions
The Q parameters listed below enable you to program basic
mathematical functions in a part program:
ú Select the Q parameter function: Press the Q key (at the right, in
the keypad for numerical input). The Q parameter functions are
displayed in a soft-key row.
ú To select the mathematical functions: Press the BASIC
ARITHMETIC The TNC then displays the following soft keys:
Function Soft key
FN0: ASSIGN
Example: FN0: Q5 = +60
Assigns a numerical value.
FN1: ADDITION
Example: FN1: Q1 = –Q2 + –5
Calculates and assigns the sum of two values.
FN2: SUBTRACTION
Example: FN2: Q1 = +10 – +5
Calculates and assigns the difference of two values.
FN3: MULTIPLICATION
Example: FN3: Q2 = +3
* +3
Calculates and assigns the product of two values.
FN4: DIVISION
Example: FN4: Q4 = +8 DIV +Q2
Calculates and assigns the product of two value
Not permitted: Division by 0
FN5: SQUARE ROOT
Example: FN5: Q20 = SQRT 4
Calculates and assigns the square root of a number.
Not permitted: square root of a negative number
“Values” in the above table are entered to the right of the “=”
character and can be any of the following:
■ Two numbers
■ Two Q parameters
■ A number and a Q parameter
The Q parameters and numerical values in the equations can be
entered with positive or negative signs.