Siemens SINUMERIK 840D sl Function Manual page 932

Z2: NC/PLC interface signals
19.10 Positioning axes (P2)
DB31, ...
DBB0
Signal irrelevant for ...
References
DB31, ...
DBX2.2
Edge evaluation: Yes
Signal state 1 or edge
change 0 → 1
Special cases,
errors, ...
Corresponding to ...
DB31, ...
DBX28.1
Edge evaluation: Yes
Signal state 1 or edge
change 0 → 1
Special cases,
errors, ...
Corresponding to ...
DB31, ...
DBX28.2
Edge evaluation: Yes
Signal state 1 or edge
change 0 → 1
932
Feedrate override / spindle override axis-specific
NST DB31, ... DBX74.5 ("Positioning axis") = ZERO
Evaluation see:
DB21, ... DBB4 (feedrate override); channel-specific
Delete distance-to-go, axis-specific
Signal(s) updated: Cyclic
The axis-specific distance-to-go of the positioning axis is canceled. The positioning axis is
decelerated and the following error is eliminated. The programmed end position is deemed to
have been reached. The path axes are not influenced by the axis-specific "delete distance-to-
go" interface signal. The channel-specific "delete distance-to-go" interface signal is used for
this purpose.
If the axis-specific "delete distance-to-go" interface signal is enabled, even if no positioning
axes have been programmed in this block, the NCK does not respond.
DB21, ... DBX6.2 (delete distance-to-go); channel-specific for path axes
Reset
Signal(s) updated: Cyclic
Reset request to the NCK for the PLC-controlled axis/spindle.
Feedback signal from the NCK to the PLC:
DB31 ... DBX63.1 = 1 (reset executed)
DB31 ... DBX63.2 = 1 (axis stop active)
Boundary condition:
● The axis/spindle must be currently controlled by the PLC.
DB31 ... DBX63.1 (reset executed)
DB31, ... DBX63.2 (axis stop active)
System variable: $AA_SNGLAX_STAT
OPI variables: aaSnglAxStat
Continue
Signal(s) updated: Cyclic
Request to continue interrupted traversing motion for a PLC-controlled axis/spindle.
The request can be interrupted with DB31 ... DBX63.2 ("axis stop active").
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions