Siemens SINUMERIK 840DE Programming Manual page 64

Fundamental Principles of NC Programming
2.2 Language elements of the programming language
Example of skipping blocks
N10
/N20 ...
N30 ...
/N40 ...
N70 ...
Up to 10 skip levels can be programmed. Only one skip level can be specified per NC block:
/ ...
/0 ...
/1 N010...
/2 N020...
...
/7 N100...
/8 N080...
/9 N090...
Machine manufacturer
The number of skip levels that can be used depends on a display machine datum.
Block skipping of levels /0 to /9 is activated by an operator action (see /BA/ Operator's Guide
HMI Advanced Embedded, program control menu in Machine operating area) or by the
programmable controller.
Note
System and user variables can also be used in conditional jumps in order to control program
execution.
Jump destinations (labels)
Labels can be defined to jump within a program.
Label names are allocated with at least two and up to 32 characters (letters, digits,
underscore). The first two characters must be letters or underscores. The label name is
followed by a colon (":").
For further information refer to
References: /PGA/, Programming Guide Advanced.
2-18
;Is executed
;Skipped
;Is executed
;Skipped
;Is executed
;Block is skipped (1st skip level)
;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, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals