In today’s fast-developing industrial automation and information technology, Programmable Logic Controllers (PLC) play an indispensable role in various manufacturing processes as an important industrial control device. They are characterized by high reliability, flexibility, and ease of maintenance, and are widely used in industries such as manufacturing, transportation, energy, and construction. Siemens PLC products are widely recognized in the industry for their excellent performance and have a rich array of application scenarios.“Illustrated Guide to Siemens PLC Programming and Practice” is a book that focuses on Siemens PLC, providing a detailed introduction to the basic knowledge of Siemens PLC programming, programming methods, system installation and debugging, as well as the design and implementation of control circuits in various practical application scenarios. It offers readers a comprehensive and in-depth learning reference, emphasizing the combination of theory and practice, and elaborates on Siemens PLC programming methods and control implementation through numerous colored schematic diagrams, wiring diagrams, and physical images.
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Content Introduction
“Illustrated Guide to Siemens PLC Programming and Practice” systematically introduces Siemens PLC programming and control cases in a colorful illustrated format. The content includes basic knowledge of Siemens PLC, ladder diagrams, statement lists, as well as various logic, operation, and control instructions. Through practical cases such as motor control, it gradually explains the meanings of instructions and control processes, combined with numerous colored schematic diagrams, wiring diagrams, and physical images. The book’s content system is complete, the knowledge structure is clear, the key points are highlighted, and the cases are rich and practical. To facilitate readers’ learning, important knowledge points are supplemented with QR code video explanations. This book is suitable for technical personnel engaged in PLC programming and applications in the industrial control field, and can also serve as a reference for teachers and students in related majors at colleges and universities.
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Chapter 1 Overview of PLC 11.1 Basic Knowledge of PLC 21.1.1 Basics of PLC 21.1.2 Features of PLC 41.1.3 Applications of PLC 71.2 Classification and Working Principle of PLC 91.2.1 Classification of PLC 91.2.2 Working Principle of PLC 13Chapter 2 Types and Structure of Siemens PLC 232.1 Main Units of Siemens PLC 242.1.1 Main Unit (CPU Module) of S7-200 SMART Series PLC 252.1.2 Main Unit (CPU Module) of S7-200 Series PLC 262.1.3 Main Unit (CPU Module) of S7-300 Series PLC 282.1.4 Main Unit (CPU Module) of S7-400 Series PLC 302.2 Expansion Modules of Siemens PLC 312.2.1 Power Module (PS) 312.2.2 Digital Input/Output Expansion Module (DI/DO) 372.2.3 Analog Input/Output Expansion Module (AI/AO) 412.2.4 Communication Module (CP) 432.2.5 Function Module (FM) 442.2.6 Interface Module (IM) 452.2.7 Other Expansion Modules 45Chapter 3 Programming Methods and Software for Siemens PLC 473.1 Programming Methods of PLC 483.1.1 Software Programming 483.1.2 Programmer Programming 483.2 Programming Software of PLC 513.2.1 Programming Software for Siemens PLC 513.2.2 Operation of Siemens PLC Programming Software (STEP 7-Micro/WIN SMART) 53Chapter 4 Installation, Debugging, and Maintenance of Siemens PLC System 664.1 Installation of Siemens PLC System 674.1.1 Selection and Installation Principles of Siemens PLC System 674.1.2 Installation Specifications of Siemens PLC System 774.2 Debugging and Maintenance of Siemens PLC System 824.2.1 Debugging of Siemens PLC System 824.2.2 Maintenance of Siemens PLC System 83Chapter 5 Usage Specifications for Siemens S7-200 SMART PLC 855.1 Features of Siemens S7-200 SMART PLC 865.1.1 Structural Features of Siemens S7-200 SMART PLC 865.1.2 Functional Features of Siemens S7-200 SMART PLC 885.2 Programming of Siemens S7-200 SMART PLC 935.2.1 LAD Editor 945.2.2 STL Editor 985.2.3 FBD Editor 102Chapter 6 Ladder Diagram of Siemens PLC 1036.1 Structure of Ladder Diagram (LAD) of Siemens PLC 1046.1.1 Bus 1046.1.2 Contacts 1056.1.3 Coils 1056.1.4 Instruction Blocks 1066.2 Programming Elements of Ladder Diagram of Siemens PLC 1076.2.1 Input Relays 1076.2.2 Output Relays 1086.2.3 Auxiliary Relays 1106.2.4 Timers 1126.2.5 Counters 1126.2.6 Other Programming Elements 112Chapter 7 Statement List of Siemens PLC 1147.1 Structure of Statement List (STL) of Siemens PLC 1157.1.1 Operation Codes 1157.1.2 Operands 1157.2 Features of Statement List of Siemens PLC 1167.2.1 Relationship between Ladder Diagram and Statement List of Siemens PLC 1167.2.2 Programming of Statement List of Siemens PLC 118Chapter 8 Basic Logic Instructions of Siemens PLC (S7-200 SMART) 1218.1 Bit Logic Instructions of Siemens PLC (S7-200 SMART) 1228.1.1 Contact Instructions 1228.1.2 Coil Instructions 1248.1.3 Set and Reset Instructions 1258.1.4 Immediate Instructions 1268.1.5 No Operation Instructions 1288.2 Timer Instructions of Siemens PLC (S7-200 SMART) 1288.2.1 On Delay Timer Instructions 1298.2.2 Retentive On Delay Timer Instructions 1308.2.3 Off Delay Timer Instructions 1318.3 Counter Instructions of Siemens PLC (S7-200 SMART) 1328.3.1 Increment Counter Instructions 1328.3.2 Decrement Counter Instructions 1348.3.3 Increment/Decrement Counter Instructions 1348.4 Comparison Instructions of Siemens PLC (S7-200 SMART) 1368.4.1 Numerical Comparison Instructions 1378.4.2 String Comparison Instructions 139Chapter 9 Arithmetic Instructions of Siemens PLC (S7-200 SMART) 1409.1 Floating Point and Integer Arithmetic Instructions of Siemens PLC (S7-200 SMART) 1419.1.1 Addition Instructions 1419.1.2 Subtraction Instructions 1469.1.3 Multiplication Instructions 1479.1.4 Division Instructions 1489.1.5 Increment and Decrement Instructions 1509.2 Logic Arithmetic Instructions of Siemens PLC (S7-200 SMART) 1539.2.1 AND Instructions 1539.2.2 OR Instructions 1549.2.3 XOR Instructions 1559.2.4 NOT Instructions 156Chapter 10 Program Control Instructions of Siemens PLC (S7-200 SMART) 15910.1 Control Program Instructions of Siemens PLC (S7-200 SMART) 16010.1.1 Loop Instructions 16010.1.2 Jump to Label Instructions and Label Instructions 16210.1.3 Sequential Control Instructions 16310.1.4 Conditional End Instructions and Pause Instructions 16710.1.5 Watchdog Timer Reset Instructions 16810.1.6 Get Non-fatal Error Code Instructions 16910.2 Subroutine Instructions of Siemens PLC (S7-200 SMART) 17010.3 Interrupt Instructions of Siemens PLC (S7-200 SMART) 17410.3.1 Related Meanings of Interrupts 17410.3.2 Interrupt Instructions 176Chapter 11 Data Processing Instructions of Siemens PLC (S7-200 SMART) 17911.1 Transfer Instructions of Siemens PLC (S7-200 SMART) 18011.1.1 Byte, Word, Double Word, Real Number Transfer Instructions 18011.1.2 Data Block Transfer Instructions 18211.2 Shift/Cycle Instructions of Siemens PLC (S7-200 SMART) 18411.2.1 Logical Shift Instructions 18411.2.2 Cycle Shift Instructions 18711.2.3 Shift Register Instructions 190Chapter 12 Data Conversion and Communication Instructions of Siemens PLC (S7-200 SMART) 19312.1 Data Conversion Instructions of Siemens PLC (S7-200 SMART) 19412.1.1 Data Type Conversion Instructions 19412.1.2 ASCII Code Conversion Instructions 19812.1.3 String Conversion Instructions 20312.1.4 Encoding and Decoding Instructions 20712.1.5 Segment Instructions 20912.2 Communication Instructions of Siemens PLC (S7-200 SMART) 21012.2.1 GET and PUT Instructions 21012.2.2 Send and Receive (RS-485/RS-232 as Free Port) Instructions 211Chapter 13 Basic Program Segments of Siemens PLC 21313.1 Start-Stop Circuit 21413.1.1 Start-Stop Control Using Drive Instructions 21413.1.2 Start-Stop Control Using Set and Reset Instructions 21513.2 Interlocking Circuit 21613.2.1 Interlocking Control Composed of Normally Closed Contacts of Coils 21613.2.2 Interlocking Control Composed of Normally Closed Contacts of Start Buttons 21713.2.3 Interlocking Control Using Intermediate Relays 21813.3 Multi-location Control Circuit 21913.3.1 Single Person Multi-location Control 21913.3.2 Multiple Persons Multi-location Control 22013.4 Timing Circuit 22113.4.1 Timer Power-on Delay Control 22113.4.2 Counter Power-on Delay Control 22113.4.3 Timer Power-off Delay Control 22113.5 Extended Delay Circuit 22213.5.1 Two Timers to Achieve Extended Delay Control 22213.5.2 Extended Delay Circuit Composed of Timer and Counter 22313.6 Flashing Circuit 22313.7 Delayed Pulse Generation Circuit 22413.8 Single Button Start-Stop Circuit 22413.8.1 Using Counter to Achieve Single Button Control Function 22513.8.2 Using Basic Logic Instructions to Achieve Single Button Control Function 225Chapter 14 Electrical Control Circuits of Siemens PLC 22714.1 PLC Control of Three-Phase AC Induction Motor Alternating Operation Circuit 22814.1.1 Electrical Structure of Three-Phase AC Induction Motor Alternating Operation Control Circuit 22814.1.2 PLC Control Principle of Three-Phase AC Induction Motor Alternating Operation Control Circuit 22914.2 PLC Control of Y-Δ Reduced Start Circuit for Three-Phase AC Induction Motor 23114.2.1 Electrical Structure of Y-Δ Reduced Start Control Circuit for Three-Phase AC Induction Motor 23114.2.2 PLC Control Principle of Y-Δ Reduced Start Control Circuit for Three-Phase AC Induction Motor 23214.3 PLC Control of Reduced Start and Reversing Braking Circuit for Three-Phase AC Induction Motor 23514.3.1 Structure of Reduced Start and Reversing Braking Control Circuit for Three-Phase AC Induction Motor 23514.3.2 PLC Control Principle of Reduced Start and Reversing Braking Control Circuit for Three-Phase AC Induction Motor 236
Source: Jinfen Mall Editor: He Mei Reviewer: Lü Jianxin