Siemens SIMATIC S5 Manual page 112

Special features
Statements connected with a flying change are treated as one statement
Exception:
If "flying change" and "programmed halt" are used in one statement, "programmed halt"
has priority.
Offsets or switchovers are executed following the program start, following the previous tra-
versing movement or dwell time and following the programmed halt.
A "programmed halt" is suppressed in conjunction with a traversing movement and dwell
times to avoid two enter commands being required.
In the following cases, the '"enter" command is required twice:
Apart from the statement number, only MOO was programmed (N1O MOO)
In the statement with MOO, only an offset or switchover was programmed.
Executing Machining Programs
= > treated as one statement
—
– > separated owing to MOO
= > The execution of the program is only interr-
upted after G56 (! = break point)
= > Despite "programmed halt" and single
statement execution, only one enter command
is required (! = break point)
= > Only one enter command is required
at both break points
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