6 NC Machine Data (NC MD), NC Setting Data (NC SD) 09.95
6.6.1 General MD bits (general bits)
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7 6 5 4 3 2 1 0
Bit No.
NC MD
5005
ZO fine
ZO coarse
R param.
angle of rot.
TO wear TO
geometry
KEYSWITCH effective for:
Position 1-3
Keyswitch group
(configurable)
Default value: All 0
Bit 7 to 5 Configured data blocks can be inhibited via keyswitch by setting these bits
(see also WS 800A description).
Bit 4 to 1 The keyswitch can be used to prevent the entry or modification over the NC
operator panel of the following data by setting the corresponding bit(s):
Bit 4 Zero offset (G54 - G57) fine
Bit 3 R parameters angle of rotation zero offset (G54 - G57) coarse
Bit 2 TO wear (parameters P5 to P7)
Bit 1 TO geometry
Bits 2 and 1 are effective only when the standard display for tool offsets
(P0 ÷ 9) is not modified in any way. When configuring tool offsets, the
keyswitch group (bits 5 to 7) for the data fields (P0 to Pxy) must also be
configured via the NC workstation (WS 800A). Bits 1 and 2 can only be set
together or not at all.
Active: At once
5006
Axis/ spindle
converter
(as from
SW 2)
ELG
program-
ming via
1)
input
display
PP manual
input
Dry run
feedrate
DRF
OVER-
STORE
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7 6 5 4 3 2 1 0
Bit No.
NC MD
KEYSWITCH effective for:
Default value: All 0
Active: Immediately
Bit 6 to 0 Entry or modification of the following data over the NC operator panel can be
inhibited via the keylock switch by setting the corresponding NC MD bit(s).
Active: At once
Bit 6=0 Input not possible.
Bit 6=1 Input via keyswitch setting 1, 2 and 3 possible.
_______
1) As from SW 3
6–92 ©
Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)
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