Siemens Simatic PCS 7 Function Manual page 6

Table of contents
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
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High Availability Process Control Systems (V9.0)
Function Manual, 05/2017, A5E39221836-AA