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Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
NC Start-Up with HMI Advanced
10.1
General procedure
The NC is parameterized with respect to the connected machine is by setting
system variables.
These system variables are called:
S
Machine data (MD)
S
Setting data (SD).
10.2
Machine and setting data
Machine data are system variables used to adapt the NC to the machine.
The identifier of a machine data is subject to the scheme:
$ M k _IdentifierString
The letters/characters have the following meaning:
S
$
System variable
S
M
Machine data
S
k
Component
k identifies the components of the NC parameterizing the appropriate machine
data:
S
N
NC
S
C
Channel
S
A
Axis
S
D
Drive
S
M
MMC.
Machine data
Identifier
10
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