6
01/2008 "Program" operating area
6.1 Program types
6
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition 6-253
6.1 Program types
6.1.1 Part program
A part program consists of a sequence of instructions to the NC
control. In its entirety, this sequence affects the production of a
specific workpiece or a particular machining process on a given blank.
6.1.2 Subprogram
A subprogram is a sequence of instructions in a part program which
can be called repeatedly with different defining parameters. Cycles are
a type of subprogram.
6.1.3 Workpiece
• A workpiece is a part to be produced or machined by the machine tool or
from the HMI perspective is to be produced or machined.In the HMI, a
workpiece is a directory in which programs and other data for
machining a particular workpiece are stored.
6.1.4 Cycles
Cycles are subprograms for the execution of a recurring machining
process on the workpiece.
6.1.5 Storing programs
Programs can be saved in the NC memory or on hard disk. The
currently available memory space is displayed in the user response
line.
Cycles can also be stored in the NC Flash File System.
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