Siemens SINUMERIK 840DE Programming Manual page 481

Compensation table
Table containing interpolation points. It provides the compensation values of the
compensation axis for selected positions on the basic axis.
Compensation value
Difference between the axis position measured by the position sensor and the desired,
programmed axis position.
Continuous-path mode
The purpose of continuous-path mode is to prevent excessive deceleration of the -> path
axes at the parts program block boundaries (in terms of the control, machine and other
properties of the operation and the user) and to effect the transition to the next block at as
uniform a path speed as possible.
Contour
Contour of the -> workpiece
Contour monitoring
The following error is monitored within a defined tolerance band to ensure contour precision.
An impermissibly high following error might be caused by a drive overload, for example. In
this case an alarm is triggered and the axes are stopped.
coordinate system
See -> machine coordinate system, -> workpiece coordinate system.
CPU
Central Processor Unit, see -> Programmable Logic Controller.
C-spline
The C-spline is the most well-known and widely used spline. The transitions at the
interpolation points are continuous, both tangentially and in terms of curvature. 3rd order
polynomials are used.
Cycle
Protected subprogram for executing a repetitive machining process on the -> workpiece.
Cycle support
In the "Program" operating area, the available cycles are listed under the menu "Cycle
Support". After selecting the desired machining cycle the required parameters for the value
assignment are displayed in clear text.
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Glossary
Glossary-5