Siemens SINUMERIK 840D sl Operating Manual page 4

Preface
For the sake of simplicity, this documentation does not contain all detailed information about
all types of the product and cannot cover every conceivable case of installation, operation, or
maintenance.
Terms and definitions
The meanings of some basic terms used in this documentation are given below.
Program
A program is a sequence of instructions to the CNC which combine to produce a specific
workpiece on the machine.
Contour
The term contour refers generally to the outline of a workpiece. More specifically, it refers to
the section of the program that defines the outline of a workpiece comprising individual
elements.
Cycle
A cycle, such as the tapping cycle, is a subroutine specified by HMI sl for carrying out a
recurring machining process.
Technical Support
If you have any technical questions, please contact our hotline:
Phone
Fax
Internet
Phone
Fax
E-mail
Phone
Fax
E-mail
4
Europe/Africa
+49 180 5050 222
+49 180 5050 223
http://www.siemens.com/automation/support-request
America
+1 423 262 2522
+1 423 262 2200
mailto:techsupport.sea@siemens.com
Asia/Pacific
+86 1064 719 990
+86 1064 747 474
mailto:adsupport.asia@siemens.com
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
HMI sl Turning