Siemens SINUMERIK 840D Function Manual page 653

Setting via the PLC user interface
The assignment is made using one of the following interface signals:
● Machine axes:
– DB31, ... DBX4.0 - 2 (activate handwheel)
● Geometry axes:
– DB21, ... DBX12.0 - 2 (geometry axis 1: Activate handwheel)
– DB21, ... DBX16.0 - 2 (geometry axis 2: Activate handwheel)
– DB21, ... DBX20.0 - 2 (geometry axis 3: Activate handwheel)
● Orientation axes:
– DB21, ... DBX320.0 - 2 (orientation axis 1: Activate handwheel)
– DB21, ... DBX324.0 - 2 (orientation axis 2: Activate handwheel)
– DB21, ... DBX328.0 - 2 (orientation axis 3: Activate handwheel)
Setting via the user interface (HMI).
Pressing the "Handwheel" softkey in the JOG-mode basic menu displays the "Handwheel"
window. Here, every handwheel can be assigned an axis and the handwheel can be enabled
or disabled.
Note
The handwheel assignment is not possible via the user interface (HMI) for more than three
connected handwheels and a binary-coded representation of the handwheel number in the NC/
PLC interface signals.
Handwheel selection by HMI
A separate user interface is provided between the HMI and PLC to allow activation of the
handwheel from the user interface. This interface supplied by the basic PLC program for
handwheels 1, 2 and 3 contains the following information:
● Axis number assigned to the handwheel (if, during the handwheel selection, a machine axis
was selected):
DB10 DBX100.0 - 4 (axis number handwheel 1)
DB10 DBX101.0 - 4 (axis number handwheel 2)
DB10 DBX102.0 - 4 (axis number handwheel 3)
● Channel number assigned to the handwheel (if during the handwheel selection a geometry
axis was selected):
DB10 DBX97.0 - 3 (channel number geometry axis handwheel 1)
DB10 DBX98.0 - 3 (channel number geometry axis handwheel 2)
DB10 DBX99.0 - 3 (channel number geometry axis handwheel 3)
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
H1: Manual traversing
17.6 Manual traversing using a handwheel
653