Siemens SINUMERIK 840D sl Function Manual page 1098

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 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.
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
The scope for implementing individual solutions (OEM applications) for the SINUMERIK
840D has been provided for machine manufacturers, who wish to create their own operator
interface or integrate process-oriented functions in the control.
Operator Interface
The user interface (UI) is the display medium for a CNC in the form of a screen. It features
horizontal and vertical softkeys.
Oriented spindle stop
Stops the workpiece spindle in a specified angular position, e.g. in order to perform
additional machining at a particular location.
Oriented tool retraction
RETTOOL: If machining is interrupted (e.g. when a tool breaks), a program command can be
used to retract the tool in a user-specified orientation by a defined distance.
1098
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions