I'll give you a paper on the research and development of model automatic loading simulation loading system. The paper number is ZD594. The number of words in the paper is 26560, and the number of pages is 59. There are opening reports, task books and literature reviews. Abstract: Programmable controller is a kind of digital electronic system, which is specially designed for application in industrial environment. It uses programmable memory to store instructions for logic operation, sequence control, timing, counting and operation, and controls various types of machinery or production processes through digital and analog input and output. This paper introduces the automatic loading simulation system based on programmable controller, comprehensively discusses the design scheme and working principle of the automatic loading simulation system, and emphatically introduces the application of programmable controller in control and the design of programmable controller communication system. The reliability of a product refers to the possibility that the product can complete its functions under specified conditions and within specified time. This paper briefly introduces the concept and characteristics of reliability of military products, puts forward the design scheme of product reliability, and expounds the reliability design scheme and main characteristics of the system. Keywords: PLC control system; Reliability; Serial communication; Automatic loading simulation system

catalogue

Abstract Ⅰ

Abstract Ⅱ

Chapter 1 application of reliability in automatic loading simulation loading system

1. 1 Introduction 1

1.2 the purpose of studying the reliability of electrical products 2

1.3 Reliability Overview II

1.3. 1 reliability concept 3

1.3.2 Characteristic quantity and distribution 3

1.4 main features of reliability problem 6

1.5 reliability design 7

1.5. 1 system reliability analysis 7

1.5.2 Reliability Prediction 8

1.5.3 Reliability Test 9

1.6 technical measures to improve equipment reliability 9

The second chapter is the working principle and overview of the programmable controller 1 1

2. 1 Introduction 1 1

2.2 Key points of design scheme 1 1

2.3 PLC 12

2.3. 1 the concept and history of programmable controller 12

2.3.2 main features of programmable controller 12

2.3.3 development of PLC13

2.3.4 the latest development trend of programmable controller 14

2.3.5 working principle of programmable controller 15

2.3.6 basic structure of programmable controller 16

2.3.7 I/O lag of programming controller 17

2.3.8 International standard of programmable controller programming language 17.

2.4 special function module of programmable controller 19

2.4. 1 analog input/output module 19

2.5 Comparison between PLC and industrial control computer and distributed control system 20

2.6 FX2N PLC serial communication instruction 2 1

2.7 communication principles 23

2.7. 1 data communication mode 23

Serial communication mode 24

2.8 RS-232C serial communication interface 26

2.9 Technical Problems in Serial Communication 28

2. 10 communication function selection 29

Chapter III Design of Automatic Loading Simulation Loading System 3 1

3. 1 Introduction 3 1

3.2 Determination of the overall scheme of the system 1

3.3 Hardware Design of Lower Computer 33

3.3. 1 PLC upper connection system 33

3.3.2 Selection of lower computer-PLC 34

3.4 Application of Visual C++programming language in this system 35

The fourth chapter PLC communication system design 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 point 38

Conclusion 39

Reference 40

Thank you 4 1

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