Siemens Simatic S7-1500R System Manual page 231

Commissioning
9.4 Operating and system states
STEP 7
Displaying the system state:
The system state is displayed on the R/H system operating panel (Online & diagnostics).
Changing the system state:
On the R/H system control panel (Online & diagnostics):
● STOP system state: Press the STOP R/H-System button.
Figure 9-13
On the CPU control panels (Online & diagnostics):
● RUN-Redundant system state: Press the RUN R/H-System button on both CPU operator
panels.
Note
Please note that you cannot switch the S7-1500R/H system to the RUN-Redundant
system state over the R/H system control panel. You implement the RUN-Redundant
system state by switching each CPU on its control panel to RUN.
230
STOP system state on the R/H system control panel
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA