Fault-tolerant automation systems
2.2 Increasing the availability of plants
S7-400H
System Manual, 03/2012, A5E00267695-11
29
With error/fault
The following figure shows how a component may fail without impairing the functionality of
the overall system.
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Figure 2-4
Example of redundancy in a 1-out-of-2 system with error
Failure of a redundancy node (total failure)
The following figure shows that the overall system is no longer operable, because both
subunits have failed in a 1-out-of-2 redundancy node (total failure).
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Figure 2-5
Example of redundancy in a 1-out-of-2 system with total failure
Содержание SIMATIC S7-400H
Страница 24: ...Preface 1 1 Preface S7 400H 24 System Manual 03 2012 A5E00267695 11 ...
Страница 46: ...Getting Started 4 5 Special layout features of SIMATIC Manager S7 400H 46 System Manual 03 2012 A5E00267695 11 ...
Страница 120: ...Memory concept 10 1 Overview of the memory concept of S7 400H CPUs S7 400H 120 System Manual 03 2012 A5E00267695 11 ...
Страница 258: ...Communication 14 8 General issues regarding communication S7 400H 258 System Manual 03 2012 A5E00267695 11 ...
Страница 354: ...Synchronization modules 18 3 Selecting fiber optic cables S7 400H 354 System Manual 03 2012 A5E00267695 11 ...
Страница 434: ...Technical data 20 6 Runtimes of the FCs and FBs for redundant I Os S7 400H 434 System Manual 03 2012 A5E00267695 11 ...
Страница 460: ...Function modules and communication processors supported by the S7 400H S7 400H 460 System Manual 03 2012 A5E00267695 11 ...