Siemens SINUMERIK 840D sl Programming Manual page 124

Feed control
7.4 Positioning spindles (SPOS, SPOSA, M19, M70, WAITS)
Conditions
The spindle to be positioned must be capable of operation in position-controlled mode.
Syntax
Position spindle:
SPOS=<value>/SPOS[<n>]=<value>
SPOSA=<value>/SPOSA[<n>]=<value>
M19/M<n>=19
Switch spindle over to axis mode:
M70/M<n>=70
Define end-of-motion criterion:
FINEA/FINEA[S<n>]
COARSEA/COARSEA[S<n>]
IPOENDA/IPOENDA[S<n>]
IPOBRKA/IPOBRKA(<axis>[,<instant in time>]) ; Programming in a separate NC
block.
Synchronize spindle movements:
WAITS/WAITS(<n>,<m>) ; Programming in a separate NC block.
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Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals