HEIDENHAIN ITNC 530 - CONVERSATIONAL PROGRAMMING User Manual page 349

18 L Z+100 R0 FMAX M2
19 LBL 10
20 CYCL DEF 7.0 DATUM SHIFT
21 CYCL DEF 7.1 X+Q1
22 CYCL DEF 7.2 Y+Q2
23 CYCL DEF 10.0 ROTATION
24 CYCL DEF 10.1 ROT+Q8
25 Q35 = (Q6 - Q5) / Q7
26 Q36 = Q5
27 Q37 = 0
28 Q21 = Q3 * COS Q36
29 Q22 = Q4 * SIN Q36
30 L X+Q21 Y+Q22 R0 FMAX M3
31 L Z+Q12 R0 FMAX
32 L Z-Q9 R0 FQ10
33 LBL 1
34 Q36 = Q36 + Q35
35 Q37 = Q37 + 1
36 Q21 = Q3 * COS Q36
37 Q22 = Q4 * SIN Q36
38 L X+Q21 Y+Q22 R0 FQ11
39 FN 12: IF +Q37 LT +Q7 GOTO LBL 1
40 CYCL DEF 10.0 ROTATION
41 CYCL DEF 10.1 ROT+0
42 CYCL DEF 7.0 DATUM SHIFT
43 CYCL DEF 7.1 X+0
44 CYCL DEF 7.2 Y+0
45 L Z+Q12 R0 FMAX
46 LBL 0
47 END PGM ELLIPSE MM
HEIDENHAIN iTNC 530
Retract in the tool axis, end program
Subprogram 10: Machining operation
Shift datum to center of ellipse
Account for rotational position in the plane
Calculate angle increment
Copy starting angle
Set counter
Calculate X coordinate for starting point
Calculate Y coordinate for starting point
Move to starting point in the plane
Pre-position in spindle axis to set-up clearance
Move to working depth
Update the angle
Update the counter
Calculate the current X coordinate
Calculate the current Y coordinate
Move to next point
Unfinished? If not finished, return to LBL 1
Reset the rotation
Reset the datum shift
Move to set-up clearance
End of subprogram
349