User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

7 Programming with Q Parameters
7.1 Part Families — Q Parameters Instead of Numerical Values
TNC 360
The Q parameter function D0: ASSIGN is used for assigning numerical
values to Q parameters.
Example: N10 D00 Q10 P01+25 *
This enables you to enter variable Q parameters in the program instead of
numerical values.
Example: G00 G40 G90 X + Q10 (corresponds to X + 25)
For part families, the characteristic workpiece dimensions can be programmed
as Q parameters. Each of these parameters is then assigned a
different value when the parts are machined.
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
To assign numerical values to Q parameters:
D
e.g.
e.g.
0
ENT
PARAMETER NUMBER FOR RESULT?
5 ENT
FIRST VALUE / PARAMETER?
6 ENT
Resulting NC block: N20 D00 Q05 P01 +6 *
Q1
Q2 Q2
Z1
Fig. 7.2: Workpiece dimensions as Q parameters
Select function D0: ASSIGN.
Enter Q parameter number.
Q1
Z2
Enter value or another Q parameter whose value is to be assigned to
Q5.
7-3