Siemens SINUMERIK 808D Programming And Operating Manual page 18

Setting-up
2.3 Setting the workpiece zero
Operating sequences
Press the "Set WO" softkey in the main screen for "Manual Machine Plus".
Figure 2-5
This screen displays the currently programmed Z value of the basic work offset.
The setting options in this screen are selected with softkeys. The softkey meanings are as
follows:
This function is used to set the "workpiece zero".
The workpiece coordinate system of the longitudinal axis (Z) displays the value "0.000".
The required work offset is computed automatically and stored in the appropriate place in the
NC.
This function resets the work offset that is currently stored on the NC. The value "0.000" is
entered in the basic offset memory location. However, all other offsets and the active tool
offset remain unchanged.
18
Set workpiece zero point
Programming and Operating Manual, 12/2012, 6FC5398-3DP10-0BA0
Manual Machine Plus (Turning)