Siemens SINUMERIK 840D sl Function Manual page 503

Figure 9-5
NC sets acknowledgement again
Phase with REPOSPATHMODE still active (residual block of the program stopped at → Time
(2) is not yet completely executed).
As soon as the REPOS repositioning motion of the ASUB is executed, the NCK sets the "Repos
Path Mode Ackn" again (→ Time (5)). If no REPOSPATHMODE has been preselected via an
NC/PLC interface signal, the programmed REPOS mode is displayed.
"Repos Path Mode Ackn" is canceled when the residual block is activated (→ Time (6)).
The part program block N30 following the block at → Time (2) is resumed.
Interface signal:
DB31, ... DBX70.2 (Repos Delay Ackn) is defined in the same way.
DB31, ... DBX70.1 (Repos offset valid) = 1, if:
DB21, ... DBX319.1-319.3 (Repos Path Mode Ackn0 to 2) = 4 (RMNBL).
Valid REPOS offset
At the end of the SERUPRO operation, the user can read out the REPOS offset via the axis/
spindle NC/PLC interface signal (NCK→PLC):
DB31, ... DBX70.0 (REPOS offset).
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
REPOS sequence in part program with timed acknowledgement signals from NCK
9.8 Block search Type 5 (SERUPRO)
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