Siemens SINUMERIK 828D Programming Manual page 463

Active compressor COMPON
With an active compressor
form a spline segment:
FNORM:
The F word of the last block in the group applies to the spline segment.
FLIN:
The F word of the last block in the group applies to the spline segment.
The programmed F value applies until the end of the segment and is then approached
linearly.
FCUB:
The generated feed spline deviates from the programmed end points by an amount not
exceeding the value set in machine data
F=FPO(...,...,...)
These blocks are not compressed.
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
8.2 Feedrate response (FNORM, FLIN, FCUB, FPO)
the following applies when several blocks are joined to
COMPON
$MC_COMPESS_VELO_TOL
Path traversing behavior
.
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