Siemens SIMATIC S7 FH - Default Chapter; Getting Started; Product Overview; Safety Mechanisms

Fail-Safe Systems
A5E00085588-03
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Contents
1 Product Overview 1-1
1.1 Overview ...........................................................................................................1-1
1.2 Basic Configuration Variants.............................................................................1-4
1.3 Components of an S7 F System.......................................................................1-7
1.4 Hardware Components .....................................................................................1-8
1.5 Software Components.....................................................................................1-10
1.6 Installing the S7 F Systems Optional Package...............................................1-11
1.6.1 Getting Started Information Applicable to All Use-Case-Scenarios................1-11
1.6.2 Use-case-scenarios ........................................................................................1-12
1.7 Working with F-Systems .................................................................................1-19
2 Getting Started 2-1
2.1 Introduction........................................................................................................2-1
2.2 S7 F System - Getting Started ..........................................................................2-4
2.2.1 S7 F System, Setting up the Hardware.............................................................2-4
2.2.2 Configuring the S7 F System ............................................................................2-6
2.2.3 S7 F System, Creating a Fail-Safe User Program............................................2-8
2.2.4 Starting Up the S7 F System ..........................................................................2-11
2.2.5 S7 F System, Monitoring Errors......................................................................2-12
2.3 Fault-Tolerant S7 FH System - Getting Started..............................................2-13
2.3.1 Fault-Tolerant S7 FH System, Setting Up the Hardware................................2-13
2.3.2 Configuring the Fault-Tolerant S7 FH System................................................2-15
2.3.3 Fault-Tolerant S7 FH System, Creating a Fail-Safe User Program................2-16
2.3.4 Starting Up a Fault-Tolerant S7 FH System ...................................................2-16
2.3.5 Fault-Tolerant S7 FH System, Monitoring Errors............................................2-17
3 Safety Mechanisms 3-1
3.1 Introduction to the Safety Mechanisms.............................................................3-1
3.2 Safety Mode ......................................................................................................3-2
3.3 Fault Reactions .................................................................................................3-3
3.4 Startup of an F-System .....................................................................................3-4
3.5 Self-Tests and Command Tests .......................................................................3-5
3.6 Logical and Timed-Based Program Execution Monitoring................................3-5
3.7 Fail-Safe User Times ........................................................................................3-7
3.8 Password Protection for F-Systems..................................................................3-8
3.9 Safety-Related Communication ........................................................................3-9
3.9.1 Communication Between the Safety Program and the
Standard User Program ..................................................................................3-10
3.9.2 Communication Between F-Run-Time Groups...............................................3-11
3.9.3 Communication Between the F-CPU and F-I/Os............................................3-11
3.9.4 Safety-Related Communication Between F-CPUs .........................................3-12