Siemens SINUMERIK 840D Operation/Programming Manual page 8

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Preface
Machine manufacturer
References
Terms
viii
Caution
Used without safety alert symbol indicates a potentially hazardous
situation which, if not avoided, may result in property damage.
Notice
Used without the safety alert symbol indicates a potential situation
which, if not avoided, may result in an undesirable result or state.
If changes or additions exist for a particular topic, they are referenced
here:
Please observe the details provided by the machine manufacturer.
Further references for particular topics are indicated here:
Reference:
A complete list of available literature is included in the Appendix of
this Operator's Guide.
The meanings of several fundamental terms used in this docu-
mentation are defined below:
Program
A program is a sequence of instructions for the CNC control, which
produce a particular workpiece at the machine.
Contour
A contour outlines a workpiece.
The term "contour" is also used to denote the section of a program
that uses individual elements to define the outline of a workpiece.
Cycle
A cycle, for example, mill rectangular pocket, is a subroutine specified
by ShopMill to execute a repetitive machining process.
(a cycle is sometimes also called a "function".)
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
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10.04
 Siemens AG, 2004. All rights reserved