Siemens SINUMERIK 840D sl Function Manual page 622

Detailed description
2.6 Block search Type 5 SERUPRO
Note
In the active ASUB, the IS:
DB21, ... DBX31.4 (REPOSMODEEDGE)
does not affect the final REPOS, unless this signal applies to the REPOS blocks.
In Case A, the signal is only allowed in the stopped state.
Response to RESET:
NCK has acknowledged the PLC signal
If the level of the signals:
DB21, ... DBX31.4 (REPOSMODEEDGE) = 1
and
DB21, ... DBX319.0 (REPOSMODEEDGEACKN) = 1
and
a RESET occurs in this situation, then the interface signal of the NCK:
DB21, ... DBX319.1–319.3 (Repos Path Mode Ackn0 to 2)
is extinguished.
NCK has not yet acknowledged the PLC signal:
If the level of the signals:
DB21, ... DBX31. (REPOSMODEEDGE 4) = 1
and
DB21, ... DBX319.0 (REPOSMODEEDGEACKN) = 0
and a RESET occurs in this situation, then from the NCK
DB21, ... DBX319.0 (REPOSMODEEDGEACKN) = 0
and
DB21, ... DBX319.1–319.3 (Repos Path Mode Ackn0 to 2)
is deleted.
Controlling SERUPRO approach with VDI signals
The SERUPRO approach can be used, with the interface signal:
DB21, ... DBX31.4 (REPOSMODEEDGE)
and the associated signals in the following phases:
• Between "Search target found" and "Start SERUPRO ASUB"
• From "SERUPO-ASUB stops automatically before REPOS" to "Target block is executed"
While the SERUPRO ASUB is being executed, e.g. in the program section before the
REPOS operation, the interface signal:
DB21, ... DBX31.4 (REPOSMODEEDGE)
has no effect on SERUPRO approach.
64
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0