Siemens SINUMERIK 840D sl Function Manual page 645

Note
For further information about the repositioning of soupled axes, see
"Continue machining after SERUPRO search target found".
Master-slave
During the block search, only the link status should be updated without calculating the
associated positions of the coupled axis.
A system ASUB can be started automatically after the block search is finished. In this
subroutine, the user can control the link status and the associated axis positions
subsequently. The information needed can be read from additional block search system
variables.
System variable for master/slave
The following system variables are needed for the position offset between the axes to be
coupled with the desired link status:
NCK variables
$P_SEARCH_MASLD[X] Slave*
$P_SEARCH_MASLC[X] Slave*
$AA_MASL_STAT[X] Slave*
Slave* for slave axis identifier
Note
This block search for the master/slave link is effective only if the position offset between the
axes can be determined.
In order to determine the programmed positions, the axes to be linked must be in the same
channel at the time of the block search. If this is not the case, the block search is aborted
with alarm 15395.
Variables $P_SEARCH_MASLD, $P_SEARCH_MASLC and $AA_MASL_STAT are cleared
on MASLON.
For further information about the master/slave link, see:
References:
/FB3/ Function Manual Special Function; Speed/Torque Coupling (TE3), Master-Slave
The system ASUB is called progevent.spf and must be available in the /_N_CMA_DIR
directory. The contents might be as follows:
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.6 Block search Type 5 SERUPRO
Description
Position offset between slave and master axis when
the link is closed.
Current status of a master/slave link was changed
during block search.
Current status of a master/slave link active.
Detailed description
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