siemens s7-1200 manual

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Siemens S7-1200

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  • Preface

    Product overview 1

    Installation 2

    PLC concepts 3

    Device configuration 4

    Programming concepts 5

    Programming instructions 6

    PROFINET 7

    Point-to-Point (PtP) communications

    8

    Online and diagnostic tools 9

    Technical specifications A

    Calculating a power budget B

    Order numbers C

    SIMATIC S7-1200 Programmable controller

    System Manual

    05/2009 A5E02486680-01

    6ES7298-8FA30-8BH0

    The following supplement is part of this documentation:

    No. Product Information Drawing number Edition 1 Update to edition 05/2009 A5E02573237-01 05/2009

  • Legal information Warning notice system

    This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

    DANGER indicates that death or severe personal injury will result if proper precautions are not taken.

    WARNING

    indicates that death or severe personal injury may result if proper precautions are not taken.

    CAUTION with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

    CAUTION without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

    NOTICE indicates that an unintended result or situation can occur if the corresponding information is not taken into account.

    If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.

    Qualified Personnel The device/system may only be set up and used in conjunction with this documentation. Commissioning and operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission, ground and label devices, systems and circuits in accordance with established safety practices and standards.

    Proper use of Siemens products Note the following:

    WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be adhered to. The information in the relevant documentation must be observed.

    Trademarks All names identified by are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

    Disclaimer of Liability We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

    Siemens AG Industry Sector Postfach 48 48 90026 NRNBERG GERMANY

    A5E02486680-01 05/2009

    Copyright Siemens AG 2009. Technical data subject to change

  • S7-1200 Programmable controller System Manual, 05/2009, A5E02486680-01 3

    Preface

    Purpose of the manual The S7-1200 series is a line of programmable logic controllers (PLCs) that can control a variety of automation applications. Compact design, low cost, and a powerful instruction set make the S7-1200 a perfect solution for controlling a wide variety of applications. The S7-1200 models and the Windows-based programming tool give you the flexibility you need to solve your automation problems. This manual provides information about installing and programming the S7-1200 PLCs and is designed for engineers, programmers, installers, and electricians who have a general knowledge of programmable logic controllers.

    Required basic knowledge To understand this manual, it is necessary to have a general knowledge of automation and programmable logic controllers.

    Scope of the manual This manual is valid for STEP 7 Basic V10.5 and the S7-1200 product family. For a complete list of the S7-1200 products described in this manual, refer to the technical specifications (Page 289).

    Certification, CE label, C-Tick, and other standards Refer to the technical specifications (Page 289) for more information.

    Service and support In addition to our documentation, we offer our technical expertise on the Internet at: http://www.siemens.com/automation/support-request Contact your Siemens distributor or sales office for assistance in answering any technical questions, for training, or for ordering S7 products. Because your sales representatives are technically trained and have the most specific knowledge about your operations, process and industry, as well as about the individual Siemens products that you are using, they can provide the fastest and most efficient answers to any problems you might encounter.

  • Preface

    S7-1200 Programmable controller 4 System Manual, 05/2009, A5E02486680-01

  • S7-1200 Programmable controller System Manual, 05/2009, A5E02486680-01 5

    Table of contents Preface ...................................................................................................................................................... 3 1 Product overview ....................................................................................................................................... 9

    1.1 Introducing the S7-1200 PLC.........................................................................................................9 1.2 Signal boards ...............................................................................................................................11 1.3 Signal modules ............................................................................................................................11 1.4 Communication modules .............................................................................................................12 1.5 TIA Portal software ......................................................................................................................12 1.5.1 Different views to make the work easier ......................................................................................13 1.5.2 Help when you need it .................................................................................................................14 1.6 Display panels..............................................................................................................................17

    2 Installation ............................................................................................................................................... 19 2.1 Installation and removal procedures............................................................................................22 2.1.1 Installing and removing the CPU .................................................................................................24 2.1.2 Installing and removing a signal module......................................................................................25 2.1.3 Installing and removing a communication module.......................................................................27 2.1.4 Installing and removing a signal board ........................................................................................28 2.1.5 Removing and reinstalling the S7-1200 terminal block connector...............................................29 2.2 Wiring guidelines..........................................................................................................................30

    3 PLC concepts .......................................................................................................................................... 35 3.1 Execution of the user program.....................................................................................................35 3.1.1 Operating modes of the CPU.......................................................................................................38 3.1.2 Event execution priorities and queuing........................................................................................40 3.1.3 CPU memory................................................................................................................................45 3.1.4 Password protection for the S7-1200 CPU..................................................................................48 3.2 Data storage, memory areas and addressing..............................................................................49 3.3 Data types....................................................................................................................................54 3.4 Saving and restoring memory......................................................................................................58 3.4.1 Understanding how the S7-1200 saves and restores data..........................................................58 3.4.2 Using the memory card as a "Program" card ..............................................................................59

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