Part Program Interruption - Siemens SINUMERIK 840D sl Function Manual

9.9.3

Part program interruption

Channel status
A part program interruption is only executed when the channel and program are active:
● DB21, ... D35.5 == 1 ("Channel active")
● DB21, ... D35.0 == 1 ("Program running")
STOP commands
The part program processing can be interrupted via the following STOP commands:
● DB21, ... DBX7.2 ("NC stop at the block limit)
● DB21, ... DBX7.3 ("NC stop")
● DB21, ... DBX7.4 ("NC stop, axes plus spindles")
● DB21, ... DBX2.0 ("Single block")
● Program command M00 or M01
The channel and program are then in the state "interrupted":
● DB21, ... D35.6 == 1 ("Channel interrupted")
● DB21, ... D35.3 == 1 ("Program interrupted")
References
A detailed description of the interface signals can be found in:
Function Manual Basic Functions; NC/PLC Interface Signals (Z1)
Sequence
The following actions are performed after a STOP command:
● Interruption of the part program execution at the next block limit (with "NC stop at the block
limit", M00, M01 or single block), or immediately for all other STOP commands.
● The traversing axes of the channel are stopped via braking ramp. The braking of the axes
down to standstill can be extended over several blocks.
● The block indicator shows the current block at the point of interruption.
● The auxiliary functions that have not been output before the point of interruption are no
longer output.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
9.9 Program operation
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