Siemens SINUMERIK 840C Installation Instructions Manual page 279

6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.6.1 General MD bits (general bits)
Bit 3
Bit 2 Bit 2 = 0
Bit 2 = 1
6–94
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Note:
If the MD bit is not set, the last function to be programmed in the block is
active.
Example:
G58 X... G91 X50... G90 Y100
added
incrementally to
previous G58 X...
value
Example: Mixed programming G90/91 in one block
Y
130
100
60
N5 G01 X50 Y60
N10 G91 X50 Y40
N15 G90 X60 G91
L F
N20 M30
The tool offset can be extended by 2 additional tool offset parameters
(P8, P9) (see also Programming Guide).
SUBROUTINE END (M17) is sent to the PLC as an M function.
SUBROUTINE END is only active NC internal
(subroutine return jump fast).
ManualsBase.com
new absolute
entry of Y value
(Y = 100)
N15
N10
N5
50 60 100
L F
F500
L F
L F
Y30
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Siemens AG 1992 All Rights Reserved
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SINUMERIK 840C (IA)