Siemens SINUMERIK 840C Installation Instructions Manual page 274

08.96
Bit 4 When bit 4 is set, the polar coordinate angles (G10, G11, G12, G13) can be
programmed as either absolutes (G90) or increments (G91) in the block (also see
NC MD 5007, bit 5).
Active:
Example:
N1 G0 G90 X0
N2 G11 X0 Y0
L F
N3 G91 A30
L F
N4 A30 B40
L F
N5 M30
Y
P4
N4
B40
B30
60°
P1=Pol 1
Bit 3 Bit 3 = 1: The old "PRESET OFFSET" is automatically retained following Power
On and reference point approach.
Active:
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Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
In the next block
L F
Y0
L F
A30 B30 F500
P3
N3
B30
N2 P2
30°
NC Stop
6FC5197- AA50
6.6.1 General MD bits (general bits)
(approach P1)
(define Pol1 and traverse to P2)
(Pol1 is maintained, exit P2)
(Pol1 is maintained, traverse to P3)
(traverse from P3 to P4)
X
6–89