Siemens SINUMERIK 840D sl Function Manual page 691

Details
Explicit ASUB start
If MD11602 $MN_ASUP_START_MASK (ignore stop reasons for ASUP) is set such that the
ASUB may not be started automatically, the routine can still be activated by the Start key.
Any rapid retraction that may be parameterized is always started.
Priorities
Machine data MD11604 $MN_ASUP_START_PRIO_LEVEL (priorities effective from the
ASUP START SCREEN) can be used to specify the minimum priority level that the settings
in MD11602$MN_ASUP_START_MASK are to affect (1-128, 1 corresponds to the highest
priority level). The priority specified in this machine data covers all priority levels from 1 up to
the specified level.
Effect of VDI signals on mode group channels
Machine data MD11600 $MN_BAG_MASK (definition of mode group)can be set to control
the effect of mode group signals (mode group reset, mode group stop axes and spindles,
mode change disable) on mode group channels in which interrupt routines are currently
being processed.
The machine data also defines whether the internal program execution mode applies only to
the one channel in which the interrupt routine has been activated or to all channels in the
mode group.
If, via MD 11600 $MN_BAG_MASK, the channel in which the interrupt is running has left the
mode group, the mode group signals Mode Group RESET, Mode Group STOP, and Mode
Group STOPALL have no effect on this channel. In this way the ASUP can proceed
unhindered by mode group signals.
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Detailed description
2.7 Program operation mode
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