Glossary
Basic logic functions: Appendix
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
33
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:
• Cycles for drilling/milling applications
• 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
Sequence of statements of a → part program that can be called repeatedly with different
defining parameters. The subroutine is called from a main program. Every subprogram can
be protected against unauthorized read-out and display. → Cycles are a form of subroutines.
Supply System
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.
Synchronization
Statements in → part programs for coordination of sequences in different → channels at
certain machining points.
Synchronized Actions
1. Auxiliary function output
During workpiece machining, technological functions (→ auxiliary functions) can be output
from the CNC program to the PLC. For example, these auxiliary functions are used to
control additional equipment for the machine tool, such as quills, grabbers, clamping
chucks, etc.
2. Fast auxiliary function output
For time-critical switching functions, the acknowledgement times for the → auxiliary
functions can be minimized and unnecessary hold points in the machining process can
be avoided.
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