Siemens SINUMERIK 840Di Function Manual page 765

The WCS is, therefore, modified by cycles. A cycle interrupted by the user should thus also
be executed in the programmed WCS. The SZS can be used to display the last valid
coordinates.
The machine data
MD24030 FRAME_ACS_SET
can then be set to define whether the SZS must be interpreted with or without the currently
programmed frame $P_PFRAME and the transformation frame $P_TRAFRAME. The default
value of 1 should be retained.
Fig. 2-21
Fig. 2-22
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
SZS with MD24030 FRAME_ACS_SET = 0
SZS with MD24030 FRAME_ACS_SET = 1
Detailed Description
2.3 Coordinate systems
2-35