Siemens SINUMERIK 840Di sl Programming Manual page 315

Programming
F2= to F7= Multiple path motions in 1 block
ST=
SR=
Or
FMA[2,x]= to FMA[7,x]=Multiple axial motions in 1 block
STA=
SRA=
Parameters
F2=... to F7=...==
ST=...
SR=...
FMA[2,x]=... to
FMA[7,x]=...
STA=...
SRA=...
FA, FMA and F value
The axial feedrate (FA or FMA value) or path feedrate (F value) corresponds to 100%
feedrate. You can use this function to realize feedrates that are smaller than or equal to the
axial feedrate or the path feedrate.
Note
If feedrates, dwell time or return path are programmed for an axis on account of an external
input, this axis must in this block must not be programmed as POSA axis (positioning axis
over multiple blocks).
Look Ahead is also active for multiple feedrates in one block. In this way, the current
feedrate is restricted by the Look Ahead value.
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
7.14 Multiple feedrate values in one block (F.., ST=.., SR=.., FMA.., STA=.., SRA=..)
In addition to the path feed, you can program up to 6 further feedrates
in the block; non-modal
Dwell time (for grinding technology: sparking-out time); non modal
Return path; non modal. The unit for the retraction path refers to the
current valid unit of measurement (mm or inch).
In addition to the path feed, you can program up to 6 further feedrates
per axis in the block; non modal
Axial dwell time (for grinding technology: sparking-out time); non-
modal
Axial return path; non-modal
Feedrate Control and Spindle Motion
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