Glossary
Glossary-12 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Mode group
Axes and spindles that are technologically related can be combined into one mode group.
Axes/spindles of a mode group can be controlled by one or more → channels. The same
→ mode type is always assigned to the channels of the mode group.
NC
Numerical control: Numerical control (NC) includes all components of machine tool control:
→ NCK, → PLC, HMI, → COM.
Note
A more correct term for SINUMERIK 840D controls 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 S7-300s and other end devices, e.g., a programming
device via a → connecting cable. Data are exchanged between the connected devices over
the network.
NRK
Numeric robotic kernel (operating system of → NCK)
NURBS
The motion control and path interpolation that occurs within the control is performed based
on NURBS (Non Uniform Rational B-Splines). As a result, a uniform process is available
within the control for all interpolations for SINUMERIK 840D.
OEM
For machine manufacturers that want to create their own user interface or introduce
technology-specific functions in the control, freedom is provided for individual solutions
(OEM applications) for SINUMERIK 840D.
Offset memory
Data area in the control where the tool offset data are stored.
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