tailieunhanh - SIEMENS - simatic function block diagram (FBD) for S7-300 and S7-400 programming

This manual is your guide to creating user programs in the Function Block Diagram (FBD) programming language. The manual also includes a reference section that describes the syntax and functions of the language elements of Function Block Diagram. The manual is intended for S7 programmers, operators, and maintenance/service personnel. In order to understand this manual, general knowledge of automation technology is required. In addition to, computer literacy and the knowledge of other working equipment similar to the PC (. programming devices) under the operating systems MS Windows 2000 Professional or MS Windows XP Professional are required | SIEMENS Preface Contents Bit Logic Instructions 1 SIMATIC Comparison Instructions 2 Function Block Diagram FBD for S7-300 and S7-400 Conversion Instructions 3 Counter Instructions 4 Programming Data Block Instructions 5 Reference Manual Jump Instructions 6 Integer Math Instructions 7 Floating-point Math Instructions 8 Move Instructions 9 Program Control Instructions 10 Shift and Rotate Instructions 11 Status Bit Instructions 12 Timer Instructions 13 Word Logic Instructions 14 This manual is part of the documentation package with the order number 6ES7810-4CA07-8BW1 Appendix Overview of All FBD Instructions A Programming Examples B Working with Function Block Diagram C Edition 01 2004 A5E00261409-01 Index Safety Guidelines This manual contains notices intended to ensure personal safety as well as to protect the products and connected equipment against damage. These notices are highlighted by the symbols shown below and graded according to severity by the following texts 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 can result if proper precautions are not taken. Caution indicates that property damage can result if proper precautions are not taken. Notice 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 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