Skippable Blocks - Siemens SINUMERIK 880 Programming Manual

2 Fundamentals of Programming

2.3.2 Skippable blocks

2.3.2 Skippable blocks
Program blocks which must not be executed during every program run can be skipped by
entering the slash character "/" at the beginning of the block. Block skip is activated by the
"SKIP YES/NO" softkey or interface control. A section can be skipped by skipping several
consecutive blocks.
Skipped block
Skipping blocks
Note:
To obtain shorter block change times, several blocks are buffered. If the machine stops on ac-
count of M00 (Programmed Stop), the next blocks will already have been input. "Block skip"
acts only on those blocks which have not yet been buffered. This buffering can be prevented
by programming L999 (disable pre-reading; @ 714) after the block containing M00.
Differential block skip allows blocks to be skipped in nine levels. The skip levels are
distinguished by identifying the skippable blocks with "/", "/1"..."/8".
2–4
N...
N...
/N...
N...
N...
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SINUMERIK 880, (PG)