Siemens SIMATIC S7-400H Manual page 16

Contents
Figures
1-1 Operating objectives of redundant programmable logic controllers
1-2 Universal automation solutions with SIMATIC
1-3 Example of redundancy in a network without malfunction
1-4 Example of redundancy in a 2-out-of-2 system with malfunction
1-5 Example of redundancy in a 2-out-of-2 system with total failure
2-1 Overview
2-2 Hardware of the S7-400H base system
2-3 User documentation for fault-tolerant systems
3-1 Hardware configuration
4-1 Layout of the controls and indicators of the CPU 414-4H/417-4H
4-2 Positions of the mode selector
4-3 Design of the memory card
4-4 Fitting memory cards in the CPUs
4-5 Memory card
4-6 Overview: system configuration for modification
of the system during operation
4-7 Diagnostics with CPU 41x
4-8 Diagnostics addresses for the DP master and DP slave
4-9 Data transmission without data consistency
4-10 Data transmission without data consistency
5-1 Synchronizing the subsystems
5-2 System and operating modes of the fault-tolerant system
6-1 Functional sequence of link-up and update
6-2 Process for update
6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4 Significance of the times relevant during the update
6-5 Relationship between the minimum I/O retention time
and the maximum blocking time for priority classes > 15
7-1 Single-channel, one-way I/O configuration
7-2 Single-channel, switched ET 200M distributed I/O
7-3 Redundant I/O in central- and expansion devices
7-4 Redundant I/O in the one-way DP slave
7-5 Redundant I/O in the switched DP slave
7-6 Redundant I/O in single mode
7-7 Fault-tolerant digital input module in a 1-out-of-2 configuration
with one sensor
7-8 Fault-tolerant digital input modules in a 1-out-of-2 configuration
with 2 sensors
7-9 Fault-tolerant digital output module in a 1-of-2 configuration
7-10 Fault-tolerant analog input modules in a 1-out-of-2 configuration
with one sensor
7-11 Fault-tolerant analog input modules in a 1-out-of-2 configuration
with two sensors
7-12 Redundant analog output modules in a 1-of-2 structure
7-13 Redundant one-way and switched I/Os
7-14 Flowchart for OB1
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Automation System S7-400H Fault-tolerant Systems
. . . . . 1-2
1-4
1-5
. . . . . . . 1-5
. . . . . . . . 1-5
2-2
2-3
2-9
3-3
. . . . . . . 4-2
4-11
4-17
4-23
4-23
4-33
4-37
4-38
4-43
4-44
5-3
5-5
6-4
6-6
6-6
6-15
6-20
7-3
7-6
7-10
7-11
7-12
7-13
7-18
7-20
. . . . . . . . . . . 7-21
7-24
7-30
7-32
7-35
7-38
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