Programming of Traversing Blocks
04.97
At the beginning of the program no zero point offset is active, i.e. it must be selected if
required. This does not apply to subroutines. A zero point offset selected in the main program
is also effective in the subroutine. A zero point offset selected in the subroutine is also
effective in the main program.
All values for the zero point offsets used in a program must be transferred
before program start.
The path to be traversed in a block is determined under consideration of all offsets and
compensations:
Absolute programming G90:
•
Selection of NPV:
Path=new set position – old set pNPV
•
New selection of NPV:
Path=new set position – old set pnew NPV – old NPV
•
Deselection of NPV:
Path=new set position – old set position – NPV
NPV=zero point offset
Incremental programming G91:
•
Path=incremental dimension
The absolute positions of the software limit switches remain when using
the zero point offset as these refer to the machine zero point.
Programming:
N10 G90 X100.000 FX5000.00
N20 G90 G54 X100.000
N30 G53 .....
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a
a a a a a a
a a a a a a
a a a a a a
100
a a a a a
a a a a a
a a a a a
a a a a a
100
a a a a a a
a a a a a a
a a a a a a
a a a a a a
400
a a a
a a a
a a a
a a a
0
a a
a a
a a
a a
0
a a a
a a a
a a a
a a a
X
a a a
a a a
a a a
a a a
W
a a a a
a a a a
a a a a
a a a a
M
a a a
a a a
a a a
a a a
Z
a a a a a a a a a a a a a
a a a a a a a a a a a a a
a a a a a a a a a a a a a
a a a a a a a a a a a a a
NPV=300
N10:
The X axis traverses to 100.000.
N20:
The function G54 activates the zero point offset. The zero point is shifted by 300 mm
in positive direction and the axis traverses to the position 100.000. All position values
following refer to the shifted zero point.
N30:
Deactivates the zero point offset.
4 – 6
©
Siemens AG 1997 All Rights Reserved 6ZB5 440-0VU02
WF 723 C (Programming Guide)
