Siemens SINUMERIK 840D sl Function Manual page 478

Mode Groups, Channels, Axis Replacement (K5)
6.5 Marginal conditions
Block search
During block search with calculation, all GET, GETD or RELEASE blocks are stored and
output after the next NC Start.
Exception:
Blocks which are mutually exclusive are deleted.
Example:
N10
N40
N70
478
RELEASE (AX1)
GET (AX1)
Target
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Blocks are deleted.
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Extended Functions