Siemens SINUMERIK 840D sl Function Manual page 1108

NC/PLC Interface Signals (Z2)
Oscillation
19.12.2 Signals from axis/spindle (DB31, ...)
VDI output signals
The NCK makes the following signals available to the PLC user program.
DB31, ...
DBX100.2
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Signal state 0 or edge
change 1 → 0
DB31, ...
DBX100.3
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Signal state 0 or edge
change 1 → 0
DB31, ...
DBX100.4
Edge evaluation:
Signal state 1 or edge
change 0 → 1
Signal state 0 or edge
change 1 → 0
DB31, ...
DBX100.5
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Signal state 0 or edge
change 1 → 0
Corresponding to ....
1108
Oscillation reversal active
Signal(s) updated: Cyclic
The deceleration period after external oscillation reversal (DB31, ...DBX28.0) is active
No deceleration after external oscillation reversal is active
Oscillation cannot start
Signal(s) updated: Cyclic
The oscillation axis cannot be started owing to incorrect programming. This status can occur
even when axis has already been traversed.
The oscillation movement can be started.
Error during oscillation movement
Signal(s) updated:
The oscillation movement has been aborted.
The oscillation movement is being executed correctly.
Sparking-out active
Signal(s) updated: Cyclic
The axis is executing sparking-out strokes.
The axis is not currently executing sparking-out strokes.
DBX100.7
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions