Siemens SINUMERIK 840D sl Commissioning Manual page 185

Actual topology
The graphic topology display in the case of an error is shown using the "Actual topology" view:
Figure 6-5
Precondition:
Focus on the component involved to analyze the error that has occurred. To do this, change
into the "Topology comparison" view in order to compare the actual topology (top) with the
saved target topology (bottom).
Component properties
After switching over the vertical softkey bar, the following properties of the focused component
are displayed in the table:
CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA
Actual topology - with error
It is assumed that the target topology has no error.
As a consequence, the errors are only displayed in the actual topology.
If a component has an error, then in addition to the symbol in the graphic,
error information is also provided at the bottom right in the detailed view.
Commissioning NC-controlled drives
6.8 Modular machine
185