Siemens SINUMERIK 840D sl Function Manual page 659

2.7.3 Part-program interruption
"Interrupted" status
Channel status
The STOP command is executed only if the channel concerned has status
IS DB21, ... D35.5 ("channel active").
STOP commands
There are various commands that stop the program execution and set the channel status to
"interrupted". These are in particular the interface signals:
• 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")
• Programming command "M00" or "M01".
For a further explanation of the individual interface signals, please see
References: /FB1/ Function Manual Basic Functions; NC/PLC interface signals (Z1), for
explanations of the individual part program instructions, see:
Reference: /PG/ Programming Guide Fundamentals; see "Li st of Instructions"
Execution of command
After execution of the STOP command, the IS DB21, ... DBX35.3 ("program status
interrupted") is set. Processing of the interrupted program can continue from the point of
interruption with the command START.
The following actions are executed when the STOP command is triggered:
• Part program execution is stopped at the next block limit (with NC stop at block limit,
• Any auxiliary functions of the current block not yet output by this point are no longer
• The axes of each channel are brought to a standstill along a braking ramp and part
• The block indicator stops at the point of interruption.
Possible actions in the interrupt state
The following actions can be executed when the part program has been interrupted (program
status stopped, channel interrupted):
• Overstoring
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
M00/M01 or single block), processing is stopped immediately with the other STOP
commands.
output.
program execution is then stopped.
References:
/BEM/, Operator's Guide HMI Embedded
Detailed description
2.7 Program operation mode
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