Siemens SIMATIC S7-1500 Function Manual page 100

Accessible devices
As for standard S7-1500 systems, the following can be displayed in STEP 7:
● All devices accessible from programming device/PC
● The diagnostics information of devices of a redundant system, for example, from the R/H
CPUs
The procedure is described in the section Accessible devices (without project) (Page 31).
Diagnostics
Function Manual, 11/2019, A5E03735838-AF
Diagnostics of the S7-1500R/H redundant system
99