Thesis in Electronics

Here is a sample paper for you Development and Development of Auto-Loading Analog Load System Paper No:ZD594 Paper Words:26560,Pages:59 with Opening Statement, Mission Statement, Literature Review Abstract: A Programmable Controller is an electronic system for the operation of digital arithmetic operations, specially designed for application in an industrial environment. It employs a programmable memory which is used to store instructions within it to perform operations such as logic operations, sequence control, timing, counting and arithmetic, and to control various types of machinery or production processes through digital, analog inputs and outputs. The article introduces the automatic loading simulation system based on programmable controller, fully discusses the design scheme and working principle of the automatic loading simulation system, and focuses on the application of programmable controllers in control and the design of the communication system of programmable controllers. Reliability of a product means: the possibility of a product to fulfill its function under the specified conditions and within the specified time. The article briefly introduces the concept and characteristics of the reliability of military products, puts forward the design scheme of product reliability, and describes the reliability design scheme and main characteristics of the system. Keywords: PLC control system; reliability; serial communication; automatic loading simulation system

Table of Contents

Abstract Ⅰ

Abstract Ⅱ

Chapter 1 Reliability in automatic loading simulation load system 1

1.1 Introduction 1

1.2 Purpose of the study of the reliability of electrical products 2< /p>

1.3 Overview of Reliability 2

1.3.1 Concept of Reliability 3

1.3.2 Characteristic Quantities and Distributions 3

1.4 Main Characteristics of Reliability Problems 6

1.5 Designing for Reliability 7

1.5.1 Analysis of System Reliability 7

1.5.2 Reliability Projection 8<

1.5.3 Reliability test 9

1.6 Technical measures to improve the reliability of the equipment 9

Chapter 2 Working principle and overview of the programmable controller 11

2.1 Introduction 11

2.2 The main viewpoints of the design scheme 11

2.3 Programmable controller 12

2.3 .1 Concept of Programmable Program Controller and its History 12

2.3.2 Main Characteristics of Programmable Program Controller 12

2.3.3 Development of PLC 13

2.3.4 Latest Trends of Programmable Program Controller 14

2.3.5 Working Principle of Programmable Program Controller 15

2.3 .6 Basic Structure of Programmable Controller 16

2.3.7 I/0 Lag Phenomenon of Programmable Controller 17

2.3.8 International Standards of Programmable Controller Programming Languages 17

2.4 Special Function Modules of Programmable Controller 19

2.4.1 Analog Input and Output Modules 19

2.5 Comparison of PLC with Industrial Control Computer and Collective Control System 20

2.6 Serial Communication Instruction of FX2N PLC 21

2.7 Communication Principle 23

2.7.1 Data Communication Mode 23

2.7.2 Serial Communication Mode 24

2.8 RS-232C Serial Communication Interface 26

2.9 Technical Issues in Serial Communication 28

2.10 Selection of Communication Functions 29

Chapter 3 Design of Auto-Loading Analog Load System 31

3.1 Introduction 31

3.2 Determination of the Overall System Program 31

3.3 Hardware Design of the Lower Unit 33

3.3.1 Upper Connection System of PLC 33

3.3.2 Selection of Lower Machine-Programmable Controller PLC 34

3.4 Application of Visual C++ Programming Language in this System 35

Chapter 4 Design of PLC Communication System 36

4.1 Introduction 36

4.2 Communication System Flow 36

4.3 PLC Software Design 36

4.4 PLC Flow Chart 36

4.5 PLC Output Points 38

Conclusion 39

References 40

Acknowledgments 41

Appendices 42 Source www. lunwenqq.com