Phase 4: Updating The Os Clients Interconnected With Server_1 - Siemens SIMATIC PCS 7 Function Manual

Failure, Switchover and Return of Fault-tolerant Components
6.10 Guidelines for updating a redundant OS in runtime
The system reacts as follows:
● The system can be controlled and monitored from all clients.
Result after Phase 3
● Server_1 is master server in the PCS 7 project.
● The updated Server_2 is standby server in the updated PCS 7 project.
● Client_1 is connected to Server_1.
● Updated Client_2 is connected to its preferred server Server_2.
● The system can be controlled from all OS clients.
6.10.6

Phase 4: Updating the OS clients interconnected with Server_1

Introduction
In Phase 4, you update the OS clients that are interconnected with Server_1.
The system can be controlled at all times using Client_2, which is interconnected with Server_2.
Interrupted redundancy
Perform the steps without extended interruptions because the redundancy is not available
during the update.
Initial situation before phase 4
● Server_1 is master server in the PCS 7 project.
● The updated Server_2 is standby server in the updated PCS 7 project.
● Client_1 is connected to Server_1.
● Updated Client_2 is connected to its preferred server Server_2.
● The system can be controlled from all OS clients.
Requirement
The PCS 7 project you are updating has already been updated on the ES.
Procedure - Phase 4
Phase 4 / 1. Client_1: Deactivate and exit WinCC
● Deactivate WinCC Runtime and exit WinCC on OS Client_1.
220
CAUTION
Fault-tolerant Process Control Systems (V8.1)
Function Manual, 11/2014, A5E34878832-AA