Nc Response - Siemens SINUMERIK 840D sl Function Manual

9.10.1.4

NC response

The different reactions of the control to an activated interrupt routine in the various operating
modes are given in the following table:
Status of NC
Program is active
Reset
Program operation (AUTO‐
MATC or MDA)
+ channel stopped
Manual mode
+ channel stopped
JOG
AUTO Teach-In
AUTO Teach reference
point.
MDA JOG,
MDA Teach-In,
MDA Teach reference point.
Manual mode
+ channel running
User alarm 65500 - 65999,
channel in reset
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
ASUB start Control system reaction
Interrupt, (PLC)
1. Fast retraction or stop axes
2. Interrupt the program for the duration of the ASUB
3. Approach of the interruption point, if REPOS in ASUB
4. Continuation of the part program
Interrupt, (PLC) The ASUB is executed like a main program. Reset (without M30) is exe‐
cuted at the end of the ASUB. The next control system status depends on
the following machine data:
MD20110 $MC_RESET_MODE_MASK
MD20112 $MC_START_MODE_MASK
References:
Function Manual Basic Functions; Axes, Coordinate Systems, Frames
(K2), Chapter: "Workpiece-related actual-value system"
Interrupt, (PLC) ASUB is executed. At the end of the ASUB the STOP state is reapplied.
If REPOS in the ASUB:
● The ASUB processing is stopped before the approach block.
● The approach movement can be initiated with the Start key.
Start key Once the ASUB has been executed, processing of the interrupted pro‐
gram is resumed.
Interrupt, (PLC) Control system assumes the status "internal program execution mode" for
the addressed channel (not evident externally) and then activates the
ASUB. The selected operating mode remains valid. The original status is
resumed after execution of the ASUB (M17).
Interrupt, (PLC) Stop processing, evaluate:
MD11602 $MN_ASUP_START_MASK
MD11604 $MN_ASUP_START_PRIO_LEVEL
Internal switchover to "internal program execution mode" if appropriate,
Interrupt, (PLC)
activate ASUB, restore status prior to ASUB start.
Any LIFTFAST defined with SETINT is not activated in JOG mode.
Interrupt, (PLC) The current active motion is stopped. The distance-to-go is deleted. The
remaining sequence of operations is the same as for "Manual mode,
channel stopped".
Interrupt, (PLC) When the following machine data is set, the user ASUB is processed
despite the "NC Start disable" alarm response:
MD20194 $MC_IGNORE_NONCSTART_ASUP
K1: Mode group, channel, program operation, reset response
9.10 Asynchronous subprograms (ASUBs), interrupt routines
563