Siemens SIMATIC PCS 7 Function Manual page 195

Phase
Phase 1:
Updating
Server_2
Phase 2:
Updating the
OS clients
which are
interconnected
with
Server_2
Phase 3:
Downloading
the
connections,
gateways and
changes
to the AS
Fault-tolerant Process Control Systems (V8.0)
Function Manual, 03/2012, A5E02779471-02
Failure, Switchover and Return of Fault-tolerant Components
6.10 Guidelines for updating a redundant OS in runtime
Step
1. Server_2: Deactivate and exit WinCC
2. Server_2:
Backup of the PCS 7 project
backup of the operating system and of the PCS 7 software installation
3. Server_2: Installation or update of the operating system, PCS 7 Installation "OS
server"
4. ES: Download OS connection data and target system
5. Server_2: Start WinCC
6. Server_2: Check and save the "Redundancy" dialog box
7. Server_2: Check and save the "Time Synchronization" dialog box
8. Client_2: Deactivate process mode and exit WinCC
9. Server_2: Activate WinCC Runtime
10. Other redundant OS server pairs:
Carry out Phase 1: Steps 1 to 9
1. Client _2:
Backup of the PCS 7 project
backup of the operating system and of the PCS 7 software installation
2. Client _2: Installation or update of the operating system, PCS 7 Installation "OS
client"
3. ES: Download to OS target system
4. Client _2: Activate
1. ES: Download NetPro connections and gateways to the AS
2. ES: Download CFC charts to the AS
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