Siemens SIMATIC HMI series, Системное руководство

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8. Server2: Activate
1. Start WinCC on Server2.
2. Activate WinCC Runtime.
The system behaves as follows:
● There is no server switching. The activated Server2 becomes the standby server in the
upgraded WinCC project.
● The WinCC Client1 remains connected to Server1.
● The WinCC Client2 remains connected to Server1.
Wait for completion of any active redundancy synchronization before you go to the next step.
If you have configured system messages, Server1 then creates a corresponding process
control message.
9. Other redundant server pairs: Execute steps 1 to 8
If several redundant server pairs are implemented, the respective standby server, Server2,
must be upgraded.
Execute steps 1 through 8 for each Server2.
Complete the upgrading of one standby server before beginning with upgrading the next
standby server.
Result of Phase 1
● Standby Server2 has been upgraded.
● WinCC Client2 is connected to Server1.
● WinCC Client1 is connected to Server1.
5.9.4 Phase 2: Upgrade WinCC clients
Introduction
In phase 2, you upgrade all WinCC clients to the new WinCC version.
In order for the system to remain operable, at least one WinCC client must remain connected
to an active server of the same WinCC version during the upgrade. The same WinCC version
must run on this server as on the WinCC client.
Initial situation in advance of phase 2
● Server1 is the master server with the previous WinCC version.
● Upgraded Server2 is the standby server in the migrated project with the new WinCC version.
Migration
5.9 Upgrading a Redundant System in Normal Operation
WinCC: General information and installation
System Manual, 02/2017, A5E40840020-AA
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