262x Filetype PDF File size 2.28 MB Source: www.elektronika.iee.put.poznan.pl
Important Notes, Contents
Introducing the S7-200 1
Micro PLC
SIMATIC Installing an S7-200 Micro 2
PLC
Getting Started with an
S7-200 Programming 3
S7-200 Programmable Controller System
System Manual Basic Concepts for
Programming an S7-200 4
CPU
CPU Memory: Data Types 5
and Addressing Modes
This manual has the order number: CPU and Input/Output 6
6ES7298-8FA20-8BH0 Configuration
Setting Up Communications
Hardware and Network 7
Communications
Conventions for S7-200 8
Instructions
SIMATIC Instructions 9
IEC 1131-3 Instructions 10
S7-200 Specifications A
Error Codes B
Special Memory (SM) Bits C
S7-200 Troubleshooting
Guide D
S7-200 Order Numbers E
Execution Times for STL F
Instructions
S7-200 Quick Reference G
Information
03/99 Index
Release 01
Safety Guidelines
This manual contains notices which you should observe to ensure your own personal safety, as well as to
protect the product and connected equipment. These notices are highlighted in the manual by a warning
triangle and are marked as follows according to the level of danger:
! Danger
indicates that death, severe personal injury, or substantial property damage will result if proper
precautions are not taken.
! Warning
indicates that death, severe personal injury, or substantial property 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.
Qualified Personnel
The device/system may only be set up and operated in conjunction with this manual. 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 systems 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 description, 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
correctly, and operated and maintained as recommended.
Trademarks
Siemensand SIMATIC are registered trademarks of SIEMENS AG.
STEP 7 and S7 are trademarks of SIEMENS AG.
Microsoft, Windows, Windows 95, Windows 98, and Windows NT are registered trademarks of
Microsoft Corporation.
Underwriters Laboratories is a registered trademark of Underwriters Laboratories, Inc.
Copyright Siemens AG 1999 All rights reserved Disclaimer of Liability
The reproduction, transmission or use of this document or its contents is not We have checked the contents of this manual for agreement with the
permitted without express written authority. Offenders will be liable for hardware and software described. Since deviations cannot be precluded
damages. All rights, including rights created by patent grant or registration of entirely, we cannot guarantee full agreement. However, the data in this
a utility model or design, are reserved. manual are reviewed regularly and any necessary corrections included in
subsequent editions. Suggestions for improvement are welcomed.
Siemens AG
Bereich Automatisierungs- und Antriebstechnik
Geschaeftsgebiet Industrie-Automatisierungssysteme Siemens AG 1999
Postfach 4848, D-90327 Nuernberg Technical data subject to change.
S7-200 Programmable Controller System ManualThis manual has the order number:
C79000-G7076-C233
Index-2 C79000-G7076-C233
Siemens Aktiengesellschaft
Important Notes
Purpose
The S7-200 series is a line of micro-programmable logic controllers (Micro PLCs)
that can control a variety of automation applications. Compact design, low cost,
and a powerful instruction set make the S7-200 controllers a perfect solution for
controlling small applications. The wide variety of CPU sizes and voltages, and the
windows-based programming tool, give you the flexibility you need to solve your
automation problems.
The S7-200 product line has been redesigned to be smaller, faster, and to have
increased functionality. The new S7-200 products are intended to replace the
previous products.
This manual provides information about installing and programming the S7-200
Micro PLCs. The S7-200 Programmable Controller System Manual includes the
following topics:
Installing and wiring
Understanding the CPU operations, data types and addressing modes, scan
cycle, password protection, and network communication
Specifications
Descriptions of and examples for the SIMATIC and IEC 1131-3 programming
instructions
Typical execution times for SIMATIC STL instructions
Audience
This manual is designed for engineers, programmers, installers, and electricians
who have a general knowledge of programmable logic controllers.
S7-200 Programmable Controller System Manual
C79000-G7076-C233-01
iii
Important Notes
Scope of the Manual
The information contained in this manual pertains in particular to the following
products:
S7-200 CPU models: CPU 221, CPU 222, and CPU 224
STEP 7-Micro/WIN 32, version 3.0, a 32-bit programming software package for
Windows 95, Windows 98, and the Windows NT environment
Agency Approvals
The SIMATIC S7-200 series meets the following regulations:
European Community (CE) Low Voltage Directive 73/23/EEC
European Community (CE) EMC Directive 89/336/EEC
Underwriters Laboratories, Inc.: UL 508 Listed (Industrial Control Equipment)
Canadian Standards Association: CSA C22.2 Number 142 Certified (Process
Control Equipment)
Factory Mutual Research: FM Class I, Division 2, Groups A, B, C, & D
Hazardous Locations, T4A
Refer to Appendix A for compliance information.
Related Information
Refer to the following for more detailed information about selected topics:
STEP 7-Micro/WIN 32 CD/disk: provides online help, the STEP 7-Micro/WIN
Getting Started (a printable online manual).
Process Field Bus (PROFIBUS) standard (EN 50170): describes the standard
protocol for the S7-200 DP communication capability.
TD 200 Operator Interface User Manual: describes how to install and use the
TD 200 with an S7-200 programmable logic controller.
S7-200 Programmable Controller System Manual
iv C79000-G7076-C233-01
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