OpenModbusTCPforNCM_CPRedundantV2English
SIMATIC
OPEN MODBUS / TCP Redundant Communication via CP443-1 in H-Systems
Manual
SIMATIC S7
OPEN MODBUS / TCP Redundant Communication via CP443-1 in H-Systems
Manual
Edition 2.0 Preface, Table of Contents
Product Description 1 Getting Started 2 Commissioning 3 Licensing 4 FB MB_REDCL 5 FB MB_REDSV 6 Add-On for CFC 7 Usage in S7-300 8 Diagnostics 9 Application Sample 10 Appendices
Literature
Glossary
Safety Precautions and Warnings
This manual contains warnings, which you should note for your own safety as well as for the prevention of damage to property. These warnings are indicated by means of a triangle and displayed as follows in accordance with the level of danger:
__________________________________________________________________ Danger
indicates that loss of life, severe personal injury or substantial damage
will result if proper precautions are not taken.
__________________________________________________________________
__________________________________________________________________ Warning
indicates that loss of life, severe personal injury or substantial damage can result if proper precautions are not taken.
__________________________________________________________________
__________________________________________________________________ Caution
indicates that minor personal injury or property damage can result if proper precautions are not taken.
__________________________________________________________________
__________________________________________________________________ Notes
call attention to information that is especially significant to the product, handling of the product or a specific part of this documentation.
__________________________________________________________________
Qualified Personnel The equipment may be commissioned and put into operation by qualified personnel only. For the purpose of safety relevant warnings of this manual a qualified person is one who is authorized to commission, ground and tag devices, systems and circuits.
Use as prescribed
Trademarks Please note the following:
_________________________________________________________________________ Warning
This equipment must only be used in applications as prescribed in the catalogue and the technical description and in conjunction with equipment and components recommended and authorized by Siemens.
Successful and safe operation of this equipment is dependent upon proper transport, and storage, erection and installation as well as careful operation and maintenance.
SIMATIC? and SIMATIC NET? are registered trademarks of SIEMENS AG.
The other brand names in this manual may be trademarks use of which by third parties for their purposes may infringe the proprietors’ rights.
Copyright ? Siemens AG 2008-20010 All Rights Reserved
The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved.
Siemens AG
Industrial Solution and Services
IT4Industry
P.O. Box 3240, D- 91050 Erlangen
IT4.Industry@www.doczj/doc/a914384639.html
Exclusion from Liability
We have checked the contents of this document with regard to conformity to the described hardware and software. Deviations, however, cannot be excluded; therefore we cannot accept prejudice for its complete conformity. The information in this document is checked regularly and necessary corrections are contained in subsequent issues. Any suggestions for improvement are gratefully received.
We reserve the right to make technical changes.
Preface
Purpose of the Manual The information in this manual allows you to set up and put in operation the connection between the CP 443-1 in an S7 redundant system and a device that supports the Open MODBUS/TCP protocol.
Contents of the Manual This manual describes the function of the Modbus function block and their integration into the hardware and software of the communication processors CP 443-1.
The manual contains the following topics:
Production description
Getting Started
Commissioning / Installation / Parameterization
Licensing
Function blocks
Diagnostics
Application sample
Scope of this
Manual
This manual is valid for the following software:
Product Identification number From version
OPEN MODBUS/TCP Redundant 2XV9 450-1MB11 2.0
FB 909 …MB_REDCL“ 2.0
FB 908 …MB_CPCLI“ 2.1
FB 907 …MB_REDSV“ 2.0
FB 906 …MB_CPSRV“ 2.0
Note
This manual contains the FB description, as it is valid at the time of
publication.
How to Access the Information in this Manual To enable you a quick access to selected information, the manual provides the following access aids:
The next pages contain a complete table of contents.
Additional Sources of Information All additional information concerning CP 443 (mounting, commissioning etc.) can be found in the manual
SIEMENS
SIMATIC
Fault-Tolerant Systems
S7-400H
System Manual
A5E00267693-03
SIEMENS
SIMATIC NET
S7-CPs for Industrial Ethernet
device manual
C79000-G8900-C155
SIEMENS
SIMATIC NET
S7-CPs for Industrial Ethernet
device manual part B4
CP 443-1
C79000-G8900-C152
SIEMENS
SIMATIC NET
NCM S7 for Industrial Ethernet
manual C79000-G8900-C129
Additional information concerning STEP7 can be found in the following manuals:
SIEMENS
SIMATIC Software
Base software for S7 and M7
STEP7 user manual
C79000-G7000-C502-..
SIEMENS
SIMATIC Software
System software for S7-300/400
System and standard functions
Reference manual C79000-G7000-C503-02
Additional Questions If you have further questions regarding the use of the FBs described in this manual, which are not answered in this document, please contact your Siemens partner who supplied you with this function block. Terminology This document uses the term CP or CP 443. The descriptions only apply to
communications processor CP 443-1.
Scope of Application The function block described in this manual establishes a connection between the CP 443-1 and third party MODBUS devices.
Table of contents Table of Contents
<1-1
Field 1-1
Hardware and 1-2
<2-1
www.doczj/doc/a914384639.3-1
Installing the Library on the STEP7 PG/-PC....................................................3-1
Parameterization of 3-2
www.doczj/doc/a914384639.html
ignore subsequent bad blocks
.3-4
Insertion of the Function Blocks into .3-9
Start_up Characteristics .3-11
<4-1
Configuration of the 5-1
Functionality of FB 5-4
Connection Testing by means of 5-10
Parameters of the Function Block 5-11
Example for 5-18
Data and Standard Function used by 5-20
Renaming / Rewiring of Standard Functions and .5-22
Configuration of the 6-1
Functionality of the FB .6-4
Connection Testing by means of 6-7
Parameters of the Function Block 6-8
Example for 6-14
Data and Standard Function used by 6-16
Table of contents
Renaming / Rewiring of Standard Functions and .6-18
<9-2
Diagnostics via the Display Elements of 9-2
Diagnostic Messages of the FBs MB_REDCL and 9-3
Diagnostic Messages of included .9-7
Diagnostic Messages 9-7
<10-1
Example project in AWL – 10-2
Example project in AWL – 10-3
Example project in CFC – 10-4
Example project in CFC – 10-5
1 Product
Description 1.1 Field of Applications
Placement in the System Environ-ment The driver described here is a software product for the Communications Processor CP443-1 in a SIMATIC S7 redundant system.
CP 443-1 can be used in the SIMATIC S7-400 automation systems and can establish communication links to partner systems.
Function of the FBs These function blocks enable a communication link between CP 443-1 and a de
vice that supports the Open MODBUS/TCP protocol. The function codes 1, 2, 3, 4, 5, 6, 15 and 16 are provided.
Data transmission is carried out following the Client-Server principle.
The SIMATIC S7 can act as both client and server during the data transmission.
Redundant communication is supported. A S7-400H system as well as a
S7-400 single CPU with 2 CPs can be used.

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