Siemens Sinumerik 840D sl Programming Manual page 40

Fundamentals

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Fundamental Principles of NC Programming

3.2 Structure and contents of an NC program

Program code

Blocks can be assigned to skip levels (max. 10) which can be activated via the user interface.

Programming is performed by assigning a forward slash, followed by the number of the skip

level. Only one skip level can be specified for each block.

Program code

The number of skip levels that can be used depends on a display machine data item.

System and user variables can also be used in conditional jumps in order to control program

; Is executed

; Is executed

; Is executed

; Block is skipped (1st skip level)

; Block is skipped (2nd skip level)

; Block is skipped (3rd skip level)

; Block is skipped (8th skip level)

; Block is skipped (9th skip level)

; Block is skipped (10th skip level)

Programming Manual, 01/2015, 6FC5398-1BP40-5BA2

Fundamentals

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