System Software for S7-300/400 System and Standard ...

1 Organization Blocks 1 Common Parameters for SFCs 2 Copy and Block Functions 3 SFCs for Controlling Program Execution 4 SFCs for Handling the System Clock 5 SFCs for Handling Run-Time Meters 6 SFCs/SFBs for Transferring Data Records 7 DPV1 SFBs According to PNO AK 1131 8 SFCs for Handling Time-of-Day Interrupts 9 SFCs for Handling Time-Delay Interrupts 10 SFCs for Handling Synchronous Errors 11 SFCs for Handling Interrupts and Asynchronous Errors 12 SFCs for Diagnostics 13 SFCs and SFBs for Updating the Process Image and Processing Bit Fields 14 System Functions for Addressing Modules 15 SFCs for Distributed I/Os or PROFINET IO 16 PROFINET 17 SFCs and SFBs for PROFINET CPUs 18 SIMATIC System Software for S7-300/400 System and Standard Functions Volume 1/2 Reference manual 05/2010 A5E02789976-01 This manual is part of the documentation package with the order number: 6ES7810-4CA10-8BW1 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.

2 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.

3 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 product/ System described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation for the specific task, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems. 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.

4 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.

5 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 N RNBERG GERMANY A5E02789976-01 02/2010 Copyright Siemens AG 2010. Technical data subject to change System Software for S7-300/400 System and Standard Functions Volume 1/2 Reference manual , 05/2010, A5E02789976-01 3 Preface Purpose This manual provides you with a comprehensive overview of the organization blocks (OB), System functions (SFC), System and Standard function blocks (SFC), and IEC functions contained in the operating systems of the CPUs of the S7-300 and S7-400, diagnostic data, System status lists (SZL), and events.

6 Note Refer to the reference section of the "S7-300 Automation System CPU Specifications: CPU 31xC and CPU 31x" and "S7-300 Automation System CPU Specifications: CPU 312 IFM - 318-2 DP /70/ or the "Automation System S7-400: CPU Specifications" reference manual /101/ or the Instruction List: S7-400 programmable controller /102/ (whichever version applies to your CPU) for details of which of these functions and blocks are available on which CPU. The properties of the CFBs and the S7 signaling functions for specific CPUs are described in /70/ and /101/. For information about the CPU operating systems, program design, and the communications and diagnostic capabilities of the CPUs, refer to the "Configuring Hardware and Communication Connections STEP 7 " manual /234/ How to call functions and function blocks in your program is explained in the language descriptions.

7 You program and assign parameters for all these functions using the STEP 7 Standard Software . How to use this Software is described in the "Programming with STEP 7 " manual /231/ and in the STEP 7 online help. Audience This manual is intended for programmers and engineers who are familiar with controlling processes and are responsible for writing programs for programmable logic controllers. Preface System Software for S7-300/400 System and Standard Functions Volume 1/2 4 Reference manual , 05/2010, A5E02789976-01 STEP 7 Documentation Packages The following table displays an overview of the STEP 7 documentation: Documentation Purpose Order Number STEP 7 Basic Information with Working with STEP 7, Getting Started manual Programming with STEP 7 Configuring Hardware and Communication Connections, STEP 7 From S5 to S7, Converter manual Basic information for technical personnel describing the methods of implementing control tasks with STEP 7 and the S7-300/400 programmable controllers.

8 6ES7810-4CA10-8BW0 STEP 7 Reference with Ladder logic (LAD)/Function Block Diagram (FBD)/Statement List (STL) for S7-300/400 manuals Standard and System Functions for S7-300/400 Volume 1 and Volume 2 Provides reference information and describes the programming languages LAD, FBD, and STL, and Standard and System functions extending the scope of the STEP 7 basic information. 6ES7810-4CA10-8BW1 Online Helps Purpose Order Number Help on STEP 7 Basic information on programming and configuring hardware with STEP 7 in the form of an online help. Part of the STEP 7 Standard Software . Reference helps on STL/LAD/FBD Reference help on SFBs/SFCs Reference help on Organization Blocks Context-sensitive reference information.

9 Part of the STEP 7 Standard Software . Preface System Software for S7-300/400 System and Standard Functions Volume 1/2 Reference manual , 05/2010, A5E02789976-01 5 Online Help The manual Volume 1 and Volume 2 is complemented by an online help which is integrated in the Software . This online help is intended to provide you with detailed support when using the Software . The help System is integrated in the Software via a number of interfaces: There are several menu commands which you can select in the Help menu: The Contents command opens the index for the Help on STEP 7. Using Help provides detailed instructions on using the online help. The context-sensitive help offers information on the current context, for example, an open dialog box or an active window.

10 You can open the context-sensitive help by clicking the "Help" button or by pressing F1. The status bar offers another form of context-sensitive help. It displays a short explanation for each menu command when the mouse pointer is positioned on the menu command. A brief explanation is also displayed for each icon in the toolbar when the mouse pointer is positioned on the icon for a short time. If you prefer to read the information from the online help in printed format, you can print out individual help topics, books, or the entire online help. This manual is an extract from the HTML-based Help on STEP 7. As the manual and the online help share an almost identical structure, it is easy to switch between the manual and the online help.