To Next Page

To Previous Page

7.2 Automation system...............................................................................................................202

7.2.1 Failure of the master CPU....................................................................................................202

7.2.2 Failure of a fiber-optic cable.................................................................................................202

7.3 Communication....................................................................................................................204

7.3.1 Failure of redundant bus components..................................................................................204

7.4 OS server.............................................................................................................................205

7.4.1 Failure, switchover and restarting redundant OS servers....................................................205

7.5 BATCH server......................................................................................................................210

7.5.1 Failure of BATCH servers....................................................................................................210

7.6 Route Control server............................................................................................................211

7.6.1 Reaction of Route Control servers to failures......................................................................211

7.7 OS clients.............................................................................................................................213

7.7.1 Switchover characteristics OS clients with permanent operability.......................................213

7.8 BATCH clients......................................................................................................................215

7.8.1 Switchover characteristics of BATCH clients.......................................................................215

7.9 Route Control clients............................................................................................................216

7.9.1 Switchover characteristics of Route Control clients.............................................................216

7.10 Guide to updating a redundant OS in runtime......................................................................217

7.10.1 Introduction..........................................................................................................................217

7.10.2 Overview of the required tasks.............................................................................................219

7.10.3 Phase 1: Updating Server_2................................................................................................224

7.10.4 Phase 2: Updating OS clients interconnected to Server_2..................................................227

7.10.5 Phase 3: Download of connections, gateways and changes to the AS...............................229

7.10.6 Phase 4: Updating OS clients interconnected to Server_1..................................................230

7.10.7 Phase 5: Updating Server_1................................................................................................232

7.11 Guide to updating a redundant BATCH server in runtime....................................................236

7.11.1 Software update (migration).................................................................................................236

7.12 Guide to updating a redundant Route Control server in runtime..........................................237

7.12.1 Updating a redundant Route Control server in runtime........................................................237

7.13 Redundancy behavior of the PCS 7 OS, SIMATIC BATCH and SIMATIC Route Control

servers.................................................................................................................................239

8 Diagnostics...............................................................................................................................................243

8.1 Advanced self-diagnostics of communication connections..................................................244

8.2 State of redundant operator stations in diagnostic pictures.................................................245

Index.........................................................................................................................................................247

Table of contents

High Availability Process Control Systems (V9.0)

6 Function Manual, 05/2017, A5E39221836-AA