Siemens SINUMERIK 840D sl Function Manual page 1038

NC/PLC interface signals (Z2)
19.4 Manual and handwheel travel
DB21, ...
DBX30.3 Simulation contour handwheel on
DBX30.4 Negative direction simulation contour handwheel
Edge evaluation: No
Description For enabling/disabling simulation of the contour handwheel, and for definition of the traversing
direction, these signals have to be set as follows:
Bit 3
0
0
1
1
During simulation the feedrate is no longer defined by the contour handwheel, but traversing occurs
with the programmed feedrate on the contour.
When the function is deselected, the runniung movement is decelerated by the braking ramp.
When the traversing direction is switched, the running movement is decelerated by the braking
ramp, and traversing occurs in the opposite direction.
Special cases, Simulation is only effective in AUTOMATIC mode and can only be activated when the contour
errors, .... handwheel is activated.
DB21, ...
DBX37.0 Handwheel 1 active as contour handwheel
DBX37.1 Handwheel 2 active as contour handwheel
DBX37.2 Handwheel 3 active as contour handwheel
Edge evaluation: No
Description These signals show which handwheel is selected as contour handwheel:
Signal = 1
Signal = 0
Special cases, The signal is maintained after NC RESET.
errors, ....
Corresponding to .... DB21, ... DBX30.0, 30.1, 30.2 (Handwheel x active as contour handwheel)
DB10
DBX100.5 Define handwheel 1 as contour handwheel
DBX101.5 Define handwheel 2 as contour handwheel
DBX102.5 Define handwheel 3 as contour handwheel
Edge evaluation: No
Description These signals show which handwheel is defined as contour handwheel via MMC:
Signal = 1
Signal = 0
In order for the handwheel defined via MMC to become effective as contour handwheel, the
corresponding signal has to be combined on interface signal:
DB21, ... DBX30.0, 30.1, 30.2 (Activate handwheel as contour handwheel).
Special cases, Depending on the settings of parameter HWheelMMC in FB1 of the basic PLC program, these
errors, .... signals are either supplied by the basic program or must be supplied by the PLC user program.
Corresponding to .... DB21 ... DBX30.0, 30.1, 30.2 (Activate handwheel x as contour handwheel)
FB1 parameters HWheelMMC
1038
Signal(s) updated: Cyclic
Bit 4 Meaning
0 Simulation OFF
1 Simulation OFF
0 Simulation ON, direction as programmed
1 Simulation ON, direction opposite programmed direction
Signal(s) updated: Cyclic
Handwheel x is selected as contour handwheel.
Handwheel x is deselected as contour handwheel.
Signal(s) updated: Cyclic
Handwheel x is defined as contour handwheel via MMC.
Handwheel x is not defined as contour handwheel.
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions