Siemens SINUMERIK 840D sl Programming Manual page 728

Motion synchronous actions
10.7 Control behavior in specific operating states
NC Stop
Static synchronized actions remain active for NC stop. Movements started from static
synchronized actions are not canceled. Synchronized actions that are local to the program
and belong to the active block remain active, movements started from them are stopped.
End of program
End of program and synchronized action do not influence one another. Current synchronized
actions are completed even after end of program. Synchronized actions active in the M30
block remain active. If this is not desirable, the synchronized action must be canceled before
the end of the program with CANCEL.
Synchronized action/
technology cycle
Axis/
positioning spindle
Speed-controlled
spindle
Master value coupling $MC_RESET_MODE_MASK, bit13 == 1:
Measuring processes
Block search
Synchronized actions are collected during a block search and evaluated on NC Start; the
associated actions are then started if necessary. Static synchronized actions are active
during block search. If polynomial coefficients programmed with FCTDEF are found during a
block search, they are activated immediately.
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Response following end of program
Modal/non-modal actions
→ are canceled
M30 is delayed until the axis / spindle is
stationary.
End of program:
$MA_SPIND_ACTIVE_AFTER_RESET==1:
Spindle remains active.
$MA_SPIND_ACTIVE_AFTER_RESET==0:
Spindle stops.
Spindle remains active on a change in
operating mode.
Master value coupling remains active.
$MC_RESET_MODE_MASK, bit13 == 0:
Master value coupling is separated.
Measuring processes started from
synchronized actions are canceled.
Static actions (IDS)
→ remain active
Motion continues.
Spindle remains active.
A coupling started from a
static synchronized action
remains active.
Measuring processes
started from static
synchronized actions
remain active.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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