Program Structure - Siemens SINUMERIK 840D SL Operating Manual

Creating a ShopMill program

7.2 Program structure

7.2 Program structure
A machining step program is divided into three sub-areas:
● Program header
● Program blocks
● End of program
These sub-areas form a work plan.
Program header
The program header contains parameters that affect the entire program, such as blank
dimensions or retraction planes.
Program blocks
You determine the individual machining steps in the program blocks. In doing this, you
specify the technology data and positions, among other things.
Linked blocks
For the "Contour milling", "Milling", and "Drilling" functions, program the technology blocks
and contours or positioning blocks separately. These program blocks are automatically
linked by the control and connected by brackets in the work plan.
In the technology blocks, you specify how and in what form the machining should take place,
e.g. centering first, and then drilling. In the positioning blocks, you define the positions for
drilling or milling operations.
End of program
End of program signals to the machine that the machining of the workpiece has ended.
Further, here you set whether program execute should be repeated.
Note
Number of workpieces
You can enter the number of required workpieces using the "Times, counters" window.
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Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Milling