Siemens SINUMERIK 840D sl Function Manual page 1089

DB31, ...
DBB65
Bit 0-6 Active machine function INC1, ..., continuous
Edge evaluation: no
Signal state 1 or The PLC interface receives a signal stating which JOG mode machine function is active for the
edge change 0 → 1 machine axes.
The reaction to actuation of the traverse key or rotation of the handwheel varies, depending on
which machine function is active.
Signal state 0 or The machine function in question is not active.
edge change 1 → 0
Corresponding to .... DB31, ... DBB5 (machine function INC1, ..., continuous)
DB31, ...
DBB75
Bit 0-2 JOG - Approaching fixed point active
Edge evaluation: No
Signal state 1 or flank Message to the PLC that the function "Approaching fixed point in JOG" is effective.
change 0 → 1
The selected machine axis can be traversed to the specified fixed point binary-coded via Bit 0-2
with the traverse keys or the handwheel.
Signal state 0 or "Approaching fixed point in JOG" is not active
edge change 1 → 0
Corresponding to .... DB31, ... DBX13.0-2 (JOG - Approach fixed point)
DB31, ... DBX75.3-5 (JOG - Approach fixed point)
DB31, ...
DBB75
Bit 3-5 JOG - Approaching fixed point reached
Edge evaluation: No
Signal state 1 or flank Message to PLC that the selected axis has reached the approaching fixed point with "exact stop
change 0 → 1 fine" by virtue of the traversing motion in JOG.
This display signal is also reported if the axis reaches the fixed point position in the machine
coordinates system via other methods (e.g. NC program, FC18, synchronized action) on the
setpoint-end and comes to a standstill on the actual-value-end within the "Exact stop fine"
tolerance window (MD36010 $MA_STOP_LIMIT_FINE)
Signal state 0 or The axis has not yet reached the approaching fixed point.
edge change 1 → 0
Corresponding to .... DB31, ... DBX13.0-2 (JOG - Approach fixed point)
DB31, ... DBX75.0-2 (JOG - Approach fixed point)
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
NC/PLC Interface Signals (Z2)
Manual and handwheel travel
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