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Siemens SINUMERIK 840D Operator's Manual Page 335

Computerized numerical control system for machine tools.
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A
03.04
NCK
Node number
NRK
NURBS
O
OEM
Offset memory
Operating mode
Operator interface
Oriented spindle stop
Oriented tool retraction
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
Numerical Control Kernel: Component of the NC control which
executes -> parts programs and essentially coordinates the
movements on the machine tool.
The node number represents the "contact address" of a -> CPU or the
-> programming device or any other intelligent periphery module if
these are communicating via a -> network with each other. The node
number is assigned to the CPU or the programming device with the
S7 tool -> "S7 configuration".
Numeric Robotic Kernel (operating system of the -> NCK)
Internal motion control and path interpolation are performed using
NURBS (non-uniform rational B-splines). This provides a uniform
internal method for all interpolations in the control (SINUMERIK
840D).
For machine manufacturers who manufacture their own user interface
or wish to integrate their own technology-specific functions in the
control, free space has been left for individual solutions (OEM
applications) for SINUMERIK 840D.
Data range in the control in which the tool offset data are stored.
An operating concept on a SINUMERIK control. The operating modes
-> Jog, -> MDA and -> Automatic are defined.
The user interface (UI) is the display medium for a CNC control in the
form of a screen. It is laid out with eight horizontal and eight vertical
softkeys.
Stops the workpiece spindle with a specified orientation angle, e.g. to
perform an additional machining operation at a specific position.
RETTOOL: If machining is interrupted (because of tool breakage, for
example), a program command can be used retract the tool with a
defined orientation by a defined path.
A
Appendix
B
Terms
A-335

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