Siemens SINUMERIK 840D sl Programming Manual page 824

Glossary
NC
Numerical Control: Numerical control (NC) includes all components of machine tool control:
→ NCK, → PLC, HMI, → COM.
Note
A more correct term for SINUMERIK controllers would be: Computerized Numerical Control
NCK
Numerical Control Kernel: Component of NC that executes the → part programs and
basically coordinates the motion operations for the machine tool.
Network
A network is the connection of multiple S7-300 and other end devices, e.g. a programming
device via a → connecting cable. A data exchange takes place over the network between the
connected devices.
NRK
Numeric robotic kernel (operating system of → NCK)
NURBS
The motion control and path interpolation that occurs within the controller is performed based
on NURBS (Non Uniform Rational B-Splines). This provides a uniform procedure for all
internal interpolations.
OEM
The scope for implementing individual solutions (OEM applications) has been provided for
machine manufacturers, who wish to create their own user interface or integrate technology-
specific functions in the controller.
Offset memory
Data range in the control, in which the tool offset data is stored.
Oriented spindle stop
Stops the workpiece spindle in a specified angular position, e.g. in order to perform
additional machining at a particular location.
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Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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