S7-300_Cp341_e.pdf

Preface, Contents

Product Description

Basic Principles of Serial

Data Transmission

SIMATIC

Starting up the CP 341

CP 341

Point-to-Point Communication

Installation and Parameter

Assignment

Mounting the CP 341

Configuring and

Parameterizing the CP 341

Communication via Function

Blocks

Manual

Start-up Characteristics and

Operating Mode Transitions

of the CP 341

This manual is part of the documentation package

with the order number:

Diagnostics with the CP 341 8

6ES7 341-1AH00-8BA0

Programming Example for

Standard Function Blocks

Appendices

Technical Specifications

Connecting Cables

Communication Matrix of the

Protocols

Accessories and Order

Numbers

SIMATIC S7 Reference

Literature

04/2000

C79000-G7076-C341

Edition 03

Glossary, Index

Danger

indicates that death, severe personal injury or substantial property damage will result if proper precau-

tions are not taken.

Warning

indicates that death, severe personal injury or substantial property damage can result if proper precau-

tions are not taken.

Caution

indicates that minor personal injury or property damage can result if proper precautions are not taken.

Note

draws your attention to particularly important information on the product, handling the product, or to a

particular part of the documentation.

Qualified Personnel

Only qualified personnel should be allowed to install and work on this equipment. Qualified persons are

defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and sys-

tems in accordance with established safety practices and standards.

Correct Usage

Note the following:

Warning

This device and its components may only be used for the applications described in the catalog or the

technical descriptions, and only in connection with devices or components from other manufacturers

which have been approved or recommended by Siemens.

This product can only function correctly and safely if it is transported, stored, set up, and installed cor-

rectly, and operated and maintained as recommended.

Trademarks

SIMATIC ) , SIMATIC HMI ) and SIMATIC NET ) are registered trademarks of SIEMENS AG.

Some of other designations used in these documents are also registered trademarks; the owner’s rights

may be violated if they are used by third parties for their own purposes.

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

Bereich Automatisierungs- und Antriebstechnik

Geschaeftsgebiet Industrie-Automatisierungssysteme

Postfach 4848, D- 90327 Nuernberg

Disclaimer of Liability

We have checked the contents of this manual for agreement with the

hardware and software described. Since deviations cannot be pre-

cluded entirely, we cannot guarantee full agreement. However, the

data in this manual are reviewed regularly and any necessary cor-

rections included in subsequent editions. Suggestions for improve-

ment are welcomed.

Point-to-point connection CP 341Installation and Parameter Assignment

C79000-G7000-C341-02

{ Siemens AG 1998

Technical data subject to change.

Siemens Aktiengesellschaft

C79000-G7076-C341

Index-2

Preface

Purpose

This manual explains how to establish and operate a point-to-point connection.

Contents of This Manual

The manual describes the hardware and software of the CP 341 communication

processor and its integration in an S7-300 programmable controller. It is divided up

into instruction-based chapters and a reference section (appendices).

The following subjects are covered:

•

The basics of point-to-point communication with the CP 341

•

Starting up the CP 341

•

Mounting the CP 341

•

Communication via the CP 341

•

Debugging

•

Application example

•

Properties and technical specifications

Scope of This Manual

The manual is relevant for:

Product

Order Number

As of product status

CP 341-RS 232C

6ES7 341-1AH01-0AE0

CP 341-20mA TTY

6ES7 341-1BH01-0AE0

CP 341-RS 422/485

6ES7 341-1CH01-0AE0

Point-to-Point Communication CP 341

C79000-G7076-C341-03

iii

Preface

Changes Since Edition 01

In contrast with edition 01, this edition describes the additional functions of the

CP 341 (MLFB No. 6ES7 341-1_H01-0AE0).

•

Baud-rate range extended to 57.6 kbaud

•

Diagnostics alarm

•

Fast switch-over for RS485 module in half-duplex mode

•

Extended modes for reception with end-of-text codes

•

Shorter character delay times at low baud rates

•

ASCII protocol with fixed message frame length: sending in character delay

time matrix can be deactivated

Note

The descriptions of the CP 341 communication processors in this manual were

correct at the time of publication. We reserve the right to describe modifications to

the functionality of the modules in a separate Product Information.

Conventions

The abbreviation CP 341 is used in the documentation when information applies to

all three module variants: CP 341-RS 232C, CP 341-20mA TTY and

CP 341-RS 422/485.

Structure of This Manual

To help you to quickly find the information you require, this manual offers the

following:

•

A comprehensive list of contents.

•

In the main body of the text, the information in the left-hand column of each

page summarizes the contents of each section.

•

Following the appendices, a glossary defines important technical terms used in

the manual.

•

Finally, a comprehensive index allows quick access to information on specific

subjects.

Point-to-Point Communication CP 341

C79000-G7076-C341-03

Preface

Other Manuals Required

Appendix E contains a list of further publications on the S7-300 and other

programmable controllers that you need to commission your system.

Electronic Manuals

The entire set of SIMATIC S7 documentation is available on CD-ROM.

Standards, Certificates and Approvals

The CP 341 communication processor meets the requirements and criteria of

IEC 1131, Part 2 and the requirements for CE marking. The CP 341 has

CSA certification and UL and FM recognition.

You will find more information on certification/recognition/approval and standards in

Appendix A.3.

Recycling and Disposal

The CP 341 is an environment-friendly product. It’s characteristic features include:

•

Housing plastic with halogen-free flame protection and is highly resistant to fire

•

Laser inscriptions (i.e. no labels)

•

Plastics identification in accordance with DIN 54840

•

Fewer materials used due to size reduction; fewer parts due to integration in

ASICs

The CP 341 is suitable for recycling on account of the low level of contaminants in

its components.

For further information about environment-friendly recycling and the procedure for

disposing of your old equipment, please contact:

Siemens Aktiengesellschaft

Anlagenbau und Technische Dienstleistungen

ATD ERC Recycling/Remarketing

Fronthauserstr. 69

D-45127 Essen

Phone: + 49 201/816 1540 (Hotline)

Fax: + 49 201/816 1504

The people there will adapt their advice to suit your situation and provide a

comprehensive and flexible recycling and disposal system at a fixed price. After

disposal you will receive information giving you a breakdown of the relevant

material fractions and the associated documents as evidence of the materials

involved.

Point-to-Point Communication CP 341

C79000-G7076-C341-03

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