Communication
14.6 Communication via fault-tolerant S7 connections
S7-400H
System Manual, 03/2012, A5E00267695-11
251
14.6.3
Communication between fault-tolerant systems and PCs
Availability
When fault-tolerant systems are linked to a PC, the availability of the overall system is
concentrated not only on the PCs (OS) and their data management, but also on data
acquisition in the automation systems.
PCs are not fault-tolerant due to their hardware and software characteristics. They can be
arranged redundantly within a system, however. The availability of such a PC (OS) system
and its data management is ensured by means of suitable software such as WinCC
Redundancy.
Communication takes place via fault-tolerant S7 connections.
The "S7-REDCONNECT" software package is required for fault-tolerant communication on a
PC. It supports the connection of a PC to a fiber-optic network with one CP, or to a
redundant bus system with 2 CPs. Always use the latest version of this software.
Only Industrial Ethernet is supported for connecting PC systems. The SIMATIC Net software
V 8.1.2 is required for connection via ISOonTCP. This corresponds to the configuration
TCP/RFC1006 at the PC end.
Note
The PROFINET MRP (Media Redundancy Protocol) for PROFINET ring topologies is not
supported by SIMATIC NET PC modules. System buses as optical two-fiber ring cannot be
operated with MRP.
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 ...