Program Structure - Siemens SINUMERIK 840D sl Operation/Programming Manual

Creating a ShopTurn Program
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4.1 Program structure

4.1

Program structure

Program header
Program blocks
Linked program blocks
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A sequential control program is divided into three sub-areas:

Program header

Program blocks

End of program
These sub-areas form a machining plan.
Program
header
Program
blocks
Program
end
Program structure
The program header contains parameters that affect the entire
program, such as blank dimensions or retraction planes.
You determine the individual machining steps in the program blocks.
In doing this, you specify the technology data and positions, among
other things.
Program block
For the "Contour turning", "Contour milling", "Milling", and "Drilling"
functions, program the technology blocks and contours or positioning
blocks separately. These program blocks are automatically linked by
the controller and connected by brackets in the work plan.
In the technology blocks, specify how and in what form the machining
should take place, e.g. centering first, and then drilling. In the
positioning blocks, determine the positions for the drilling or milling
machining, e.g. position the drill-holes in a full circle on the front
surface.
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
Technology data and
positions
Plain text, e.g. type
of machining
Block number allocated
by control
Symbol of machining cycle
♥ Siemens AG, 2005. All rights reserved
08/2005
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