Siemens SINUMERIK 840D sl Function Manual page 1625

DB21, ...
DBX319.1 - Active REPOS mode (A, B, C)
DBX319.3
Example of the sequence of REPOS acknowledgements in the part program and signal timing of the
acknowledgement process from the NC:
Corresponding to ... DB21, ... DBX31.0-2 (REPOS mode)
DB21, ... DBX31.4 (REPOS mode-change)
DB21, ... DBX319.0 (acknowledgement of REPOS mode change)
DB31, ... DBX70.2 (acknowledgement of REPOS delay)
Additional references See Section "Block search Type 5 (SERUPRO) (Page 493)"
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
19.6 Mode group, channel, program operation, reset response (K1)
Z1: NC/PLC interface signals
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