Communication
14.5 Communication via S7 connections
S7-400H
236
System Manual, 03/2012, A5E00267695-11
14.5
Communication via S7 connections
Communication with standard systems
Fault-tolerant communication between fault-tolerant and standard systems is not supported.
The following examples illustrate the actual availability of the communicating systems.
Configuration
S7 connections are configured in STEP 7.
Programming
All communication functions are supported for S7 communication on a fault-tolerant system.
The communication SFBs are used in STEP 7 to program communication.
Note
The START and STOP communication functions act on exactly one CPU or on all CPUs of
the fault-tolerant system (for more details refer to the
System Software for S7-300/400,
System and Standard Functions Reference Manual).
NOTICE
Downloading the connection configuration in RUN
If you download a connection configuration during operation, any established connections
could be canceled.
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 ...