Siemens SINUMERIK 840Di Function Manual page 764

Detailed Description
2.3 Coordinate systems
WCS actual-value display in WCS or SZS
The actual values of the axes in the machine coordinate system (MCS) or the WCS can be
displayed on the HMI operator interface. For displays in WCS, the actual values can also be
displayed in relation to the SZS. The corresponding configuration is made using:
MD9424 $MM_MA_COORDINATE_SYSTEM = <Coordinate system>
Coordinate system:
0: Actual-value display in relation to the WCS
1: Actual-value display in relation to the SZS
Note
Display of the current coordinate system
When "Actual-value display in relation to the SZS" is active, the WCS is still displayed on the
HMI operator interface as the coordinate system to which the actual-value display relates.
Example
Actual-value display in relation to the WCS or SZS
Code (excerpt)
N10 X100
N20 X0
N30 $P_PFRAME = CTRANS(X,10)
N40 X100
2.3.7 Configurable settable zero system (SZS)
Application
The function of the SZS coordinate system is to display actual values and move the axes
during a cycle interruption.
Cycles utilize frames in the frame chain to perform their functions.
They insert translations or rotations either in the:
• Programmed frame $P_PFRAME
• Cycle system frame $P_CYCFRAME
2-34
Actual-value display: Axis X (WCS)
100
0
0
100
or
Actual-value display: Axis X (SZS)
100
0
10
110
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0