Siemens SINUMERIK 840D sl Function Manual page 2174

Glossary
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 control 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.
Overall reset
In the event of an overall reset, the following memories of the → CPU are deleted:
• → Work memory
• Read/write area of → load memory
• → System memory
• → Backup memory
Override
Manual or programmable control feature, which enables the user to override programmed
feedrates or speeds in order to adapt them to a specific workpiece or material.
Part program management
Part program management can be organized by → workpieces. The size of the user memory
determines the number of programs and the amount of data that can be managed. Each file
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Basic logic functions: Appendix
Function Manual, 11/2006, 6FC5397-0BP10-2BA0