HEIDENHAIN TNC 410 - Manual (Page 220)

207 HEIDENHAIN TNC 410
1
0.2 P
a
rt
F
amilies — Q P
a
ra
met
ers in Place of Numer
ical V
alues
Calling Q parameter functions
When you are writing a part program, press the “Q” key (below the
–/+ key in the keypad for numerical input and axis selection). The
TNC then displays the following soft keys:
Function group Soft key
Basic arithmetic (assign, add, subtract, multiply,
divide, square root)
Trigonometric functions
If/then conditions, jumps
Other functions
Entering Formulas Directly
10.2 Part Families — Q Parameters in
Place of Numerical Values
The Q parameter function FN0: ASSIGN assigns numerical values to
Q parameters. This enables you to use variables in the program
instead of fixed numerical values.
Example NC blocks
15 FN0: Q10 = 25 ASSIGN:
... Q10 contains the value 25
25 L X +Q10 Means L X +25
You need write only one program for a whole family of parts,
entering the characteristic dimensions as Q parameters.
To program a particular part, you then assign the appropriate values
to the individual Q parameters.
Example
Cylinder with Q parameters
Cylinder radius R = Q1
Cylinder height H = Q2
Cylinder Z1 Q1 = +30
Q2 = +10
Cylinder Z2 Q1 = +10
Q2 = +50
Z1
Q1
Q2
Z2
Q1
Q2