Siemens SINUMERIK 840D sl Function Manual page 623

REPOS operations with VDI signals
Control REPOS with VDI interface signals
REPOS offsets can be positively influenced with the following channelspecific VDI interface
signals from the PLC:
DB21, ... DBX31.0-31.2 (REPOSPATHMODE0 to 2) *channel-specific
DB21, ... DBX31.4 (REPOSMODEEDGE) channel-specific
DB 31, ... DBX10.0 (REPOSDELAY) *axis/spindle
(This axial interface does not affect machine axes that form a path.)
DB31, ... DBX72.0 (REPOSDELAY) axis/spindle
* These signals are available in the respective DB of the HMI or PLC.
REPOS acknowledgement signals
The following VDI signals can be used to acknowledge from the NCK functions that control
the REPOS response via PLC:
DB21, ... DBX319.0 (REPOSMODEEDGEACKN) channel-specific
DB21, ... DBX319.1-319.3 (Repos Path Mode Quitt0 to 2) channel-specific.
DB21, ... DBX319.5 (Repos DEFERRAL Chan) channel-specific
DB31, ... DBX70.0 (Repos offset) axis/spindle
DB31, ... DBX70.1 (Repos offset valid) axis/spindle
DB31, ... DBX70.2 (Repos Delay Ackn) axis/spindle
DB31, ... DBX76.4 (path axis) axis/spindle
For further information, see "REPOS offset in the interface"
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Detailed description
2.6 Block search Type 5 SERUPRO
65