S7-400H
System Manual, 03/2012, A5E00267695-11
5
Table of contents
1 Preface .................................................................................................................................................... 19
1.1 Preface.........................................................................................................................................19
2
Fault-t
olerant automation systems........................................................................................................... 25
2.1 Redundant SIMATIC automation syst
ems...................................................................................25
2.2 Increasing the availability
of plants ..............................................................................................27
3 S7-400
H setup options ............................................................................................................................ 31
3.1 S7-400H setup options
................................................................................................................31
3.2 Rules for the ass
embly of fault-tolerant stations..........................................................................33
3.3 The S7–400H basic sy
stem .........................................................................................................34
3.4 I/O modules for S7–400H.............................................................................................................36
3.5
Communication
............................................................................................................................37
3.6 Tools for configuration and programm
ing....................................................................................38
3.7 The user program ........................................................................................................................39
3.8
Documentation
.............................................................................................................................40
4 Getti
ng Started ........................................................................................................................................ 41
4.1 Getting Started.............................................................................................................................41
4.2
Requirements..............................................................................................................
.................41
4.3 Hardware assembly
and commissioning of the S7–400H ...........................................................42
4.4 Examples of the respo
nse of the fault-tolerant system to faults..................................................44
4.5 Special layout features of SIMATIC Manager..............................................................................45
5
Assembly
of a CPU 41x–H....................................................................................................................... 47
5.1 Operator cont
rols and display elements of the CPUs..................................................................47
5.2 Monitoring functions
of the CPU ..................................................................................................52
5.3 Status and error displa
ys .............................................................................................................55
5.4 Mode switch .................................................................................................................................60
5.4.1
Function of the mode switch ........................................................................................................60
5.4.2
Performing a memory reset
.........................................................................................................62
5.4.3 Cold restart / Warm restart
...........................................................................................................64
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