Siemens SIMATIC PCS 7 Function Manual page 213

Phase
Phase 4:
Update the OS
clients that are
interconnected
on
Server_1
Phase 5:
Updating Serv‐
er_1
Result
When you have completed all the steps, your system has the following status:
● Updated Server_1 is standby server.
● Updated Server_2 is master server.
● Updated Client_1 is connected to its preferred server Server_1.
● Updated Client_2 is connected to its preferred server Server_2.
Fault-tolerant Process Control Systems (V8.1)
Function Manual, 11/2014, A5E34878832-AA
Failure, Switchover and Return of Fault-tolerant Components
6.10 Guidelines for updating a redundant OS in runtime
Step
1. Client_1: Deactivate and exit WinCC
2. Client_1:
Back up the PCS 7 project
Back up the operating system and the PCS 7 software installation
3. Client_1: Install or update the operating system, PCS 7 Installation "OS client"
4. Client _1: If you want to use secure communication after the software update:
Activate "Secure communication" with migration mode. You can find information
about this in the documentation
Configuration .
5. ES: Download of OS target system
6. Client_1: Select the operability of the clients
1. Server_1: Deactivate and exit WinCC
2. Client_1: Activate
3. Server_1:
Back up the PCS 7 project
Back up the operating system and the PCS 7 software installation
4. Server_1: Install or update the operating system, PCS 7 Installation "OS server"
5. Server_1: If you want to use secure communication after the software update:
Activate "Secure communication" with migration mode. You can find information
about this in the documentation
Configuration .
6. ES: Download OS connection data and OS target system
7. Server_1: Start WinCC
8. Server_1: Check and save the "Redundancy" dialog box
9. Server_1: Check and save the "Time Synchronization" dialog box
10. If a Process Historian is present in the project, make sure:
"PH-Ready Configuration" is executed at Server_1.
11. Server_1: Activate WinCC process mode
12. Other redundant OS server pairs:
Carry out Phase 5: Steps 1 to 9
13. ES: Start SIMATIC PDM
Process Control System PCS 7; PCS 7 PC
Process Control System PCS 7; PCS 7 PC
213