Siemens SINUMERIK 840Di Function Manual page 607

Reaching simulated target point for LEAD with JOG
At the time of "Search target found", the coupling is already active, especially for the
JOG movements. If the target point is not reached, SERUPRO approach can be used to
traverse the following axis with active coupling and an overlaid motion to the target point.
Note
For further information about the repositioning of axis couplings, 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.
Mode Group, Channel, Program Operation, Reset Response (K1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
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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