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Siemens SINUMERIK 840D sl Function Manual page 1697

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Scaling
Component of a → frame that implements axis-specific scale modifications.
Setting data
Data which communicates the properties of the machine tool to the NC as defined by the
system software.
Softkey
A key, whose name appears on an area of the screen. The choice of softkeys displayed is
dynamically adapted to the operating situation. The freely assignable function keys (softkeys)
are assigned defined functions in the software.
Software limit switch
Software limit switches limit the traversing range of an axis and prevent an abrupt stop of the
slide at the hardware limit switch. Two value pairs can be specified for each axis and activated
separately by means of the → PLC.
Spline interpolation
With spline interpolation, the controller can generate a smooth curve characteristic from only
a few specified interpolation points of a set contour.
Standard cycles
Standard cycles are provided for machining operations which are frequently repeated:
● For the drilling/milling technology
● For turning technology
The available cycles are listed in the "Cycle support" menu in the "Program" operating area.
Once the desired machining cycle has been selected, the parameters required for assigning
values are displayed in plain text.
Subblock
Block preceded by "N" containing information for a sequence, e.g. positional data.
Subprogram
The term "subprogram" has its origins during the time when part programs were split strictly
into →main and subprograms. This strict division no longer exists with today's SINUMERIK NC
language. In principle, any part program or any → cycle can be called up as a subprogram
within another part program. It then runs through in the next → program level (x+1) (subprogram
level (x+1)).
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Glossary
1697

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