Program Interruption By Asub; Repos; Response To Alarms - Siemens SINUMERIK 840Di sl Function Manual

2.7.8

Program interruption by ASUB

ASUB start
Modal and static motion-synchronous actions remain active and are also operative in the
asynchronous subprogram.
ASUB end
If the asynchronous subprogram is not continued with REPOS, then modal and static motion-
synchronous actions modified in the subprogram remain operative in the main program.
Positioning motions started from synchronized actions respond in the same way as to
operating mode switchover:
Motions started from non-modal and modal actions are stopped and continued with REPOS (if
programmed). Motions started from static synchronized actions continue uninterrupted.
2.7.9

REPOS

In the remainder of the block, the synchronized actions are treated in the same way as in an
interruption block.
Modifications to modal synchronized actions in the asynchronous subprogram are not
effective in the interrupted program.
Polynomial coefficients programmed with FCTDEF are not affected by ASUB and REPOS.
The coefficients from the call program are applied in the asynchronous subprogram. The
coefficients from the asynchronous subprogram continue to be applied in the call program.
If positioning motions started from synchronized actions are interrupted by the operating
mode change or start of the interrupt routine, then they are continued with REPOS.
2.7.10

Response to alarms

Axis and spindle motions started by means of synchronized actions are decelerated in
response to an alarm involving a motion stop instruction. All other actions (such as Set
output) continue to be executed.
If an alarm is activated by a synchronized action, then the action is no longer processed in
the next interpolation cycle, i.e. the alarm is output only once. Alarms that respond with an
interpreter stop only take effect once the precoded blocks have been processed.
Processing of all other actions continues as normal.
If a technology cycle generates an alarm with motion stop, then processing of the relevant
cycle ceases.
Synchronized actions
Function Manual, 11/2006, 6FC5397-5BP10-2BA0
2.7 Control system response for synchronized actions in specific operational states
Detailed description
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