Siemens SINUMERIK 840D sl Function Manual page 1104

NC/PLC Interface Signals (Z2)
Positioning axes
DB31, ...
DBX76.5
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
DB31, ...
DBB78-81
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Signal irrelevant for ...
Special cases,
errors, ....
Corresponding to ....
1104
Positioning axis
NCK treats the axis as a positioning axis.
Signal(s) updated: Cyclic
The NCK treats the axis as a positioning axis. By this, it has:
its own axis interpolator (linear interpolator)
•
its own feedrate (F value)
•
its own feedrate override
•
Exact stop (G09) at the progr. End position
•
F function (feedrate) for positioning axis
Assign feedrate through the programmed axis name of a positioning axis
Signal(s) updated: when change
The programmed axial feed is assigned to a positioning axis by means of the programmed
axis name and output to the PLC for this axis. There is no output of the value preset via
FC15. See below.
IS: Positioning axis = ZERO
If the positioning axis is traversed with the feedrate from the following machine data, the NC
does not output an F function (feed) to the PLC:
MD32060 $MA_POS_AX_VELO
(initial setting for positioning axis velocity)
DB31, ... DBX74.5 (Positioning axis)
MD22240 $MC_AUXFU_F_SYNC_TYPE (output time of F functions)
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions