Siemens SINUMERIK 840C Installation Instructions Manual page 284

01.99
NC MD 7
5012
Default value: All 0
Active: In the next block
Bit 3 If the bit is set, the workpiece name is not deleted with program selection via
FB 62.
Bit 2 Bit 2 can be used to inhibit entry and modification of NC MD, PLC MD and
cycles MD using @ commands @4.. (CL800 commands).
Bit 1 Bit 1=1 Leads to a sign change of handwheel 2
Bit 0 Bit 0=1 Leads to a sign change of handwheel 1
NC MD 7
Polar
Circle
coordinate
5013
program-
program-
ming
ming
Default value: 1000 0000
Active: In the next block
Bit 7 Bit 7=1 When bit 7 is set, a circle can be programmed by specifying the radius and/or
angle.
Bit 6 Bit 6=1 Positions related to a set mid-point can be defined by programming polar
coordinates using details of radius and angles.
Example 840C (M):
Bit 4 Bit 4=0 The programmed feedrate refers to the contour.
Bit 4 Bit 4=1 The programmed feedrate of the milling tool refers to the tool center path.
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Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
Bit No.
6 5 4
Bit No.
6 5 4
Feed not
contour-
related
6FC5197- AA50
6.6.1 General MD bits (general bits)
3 2 1
Do not
delete work- Sign change
Write MD
piece name
handwheel 2
with PLC disabled
(as from
program
by @
selection (as SW 6.3)
from SW 3)
3 2 1
M and S
Tapping
address
without
extension for
encoder
spindle to PLC
F 1000
F 1000
F 1000
F 1000
F 1000
0
Sign change
handwheel 1
(as from
SW 6.3)
0
G63 without
feedrate
reduction
F 1000
6–99