HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 253)

8-46
8 Cycles
TNC 407/TNC 415 B/TNC 425
8.5 Coordinate Transformation Cycles
X
Y
Z
25
30
40
20
60
15
1
2
30
25
20
15
Y
X
Z
Example: Datum shift
A machining sequence in the form of a sub-
program is to be executed twice:
a) once, referenced to the specified
datum 1 X+0/Y+0 and
b) a second time, referenced to the shifted
datum
2 X+40/Y+60.
Cycle in a part program
0 BEGIN PGM DATUM MM
1 BLK FORM 0.1 Z X+0 Y+0 Z–20
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+4
4 TOOL CALL 1 Z S1000
5 L Z+100 R0 F MAX
6 CALL LBL 1 ........................................................ Without datum shift
7 CYCL DEF 7.0 DATUM SHIFT
8 CYCL DEF 7.1 X+40
9 CYCL DEF 7.2 Y+60
10 CALL LBL 1 ........................................................ With datum shift
11 CYCL DEF 7.0 DATUM SHIFT ............................ Cancellation of datum shift
12 CYCL DEF 7.1 X+0
13 CYCL DEF 7.2 Y+0
14 L Z+100 R0 F MAX M2
15 LBL 1
LBL 0
END PGM DATUM MM
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