SIMATIC S7-1200 in tasks. LAD language. Basic level

Introduction to Programming in Modern Times

Nowadays, programming skills are becoming more and more desirable on the labor market. Regardless of the industry, programming has become an integral element of many business and technological processes.

Learning Programming: Materials and Tools

There are many resources and tools to help you develop your programming skills, such as books, online courses, mobile apps, and much more. The choice depends on your preferences and level of advancement.

Developing Skills Through Practice

Developing Skills Through PracticeOne of the best ways to develop programming skills is to learn through practice. Creating projects and solving programming problems allows you to gain practical experience.

The book “Simatic S7-1200 in Tasks. LAD language. Basic level"

If you want to learn programming in LAD, our book “Simatic S7-1200 in Tasks. LAD language. The Basic Level is the key to achieving this goal. The book offers practical exercises and examples, helping you gradually master the LAD language.

Benefits of Mastering the LAD Programming Language

Mastering the LAD programming language will allow you to create unique projects in various industrial fields, such as automation, robotics, energy and processing.

The Importance of Task Solutions

A book with solutions to tasks is a valuable tool for developing programming skills. It helps you understand theory in practice, saves time and avoids mistakes.

Development of Creativity and Independence

The book allows you to develop creativity, independence in problem solving and gain confidence in programming through a variety of task scenarios.

Summary

A book with solutions to tasks allows you to master programming skills faster through the practical use of theory in specific tasks. Access to proven solutions increases the efficiency of the programming process, enabling the creation of advanced systems that meet the needs of modern PLC applications.

 

Table of contents:

1       Preparation – what you will need. 7

2       Description of the facility. 7

3       From process to PLC programming.. 10

4       Bitwise operations. 11

4.1        Task 3a – Driving to the sensor (NC type) – AND gate.. 11

4.1.1         Resolution. 11

4.1.2         Scenario 1. 11

4.1.3         Scenario 2. 12

4.1.4         Scenario 3. 12

4.1.5         Scenario 4. 13

4.2        Task 3b – Driving to the sensor (NO type) – AND gate.. 13

4.2.1         Solution. 14

4.2.2         Scenario 1. 14

4.2.3         Scenario 2. 14

4.2.4         Scenario 3. 15

4.2.5 Scenario 4. 16

4.3        Task 3c – Conveyor driving – OR gate.. 17

4.3.1         Resolution. 17

4.3.2         Scenario 1. 17

4.3.3         Scenario 2. 18

4.3.4         Scenario 3. 19

4.3.5         Scenario 4. 20

4.4        Task 3e – Conveyor driving – OR and AND gate.. 20

4.4.1 Solution. 20

4.4.2         Scenario 1. 21

4.4.3         Scenario 2. 21

4.4.4         Scenario 3. 21

4.4.5         Scenario 4. 22

4.4.6         Scenario 5. 22

4.5        Task 3f - Conveyor driving (shutdown dominance). 22

4.5.1         Resolution. 23

4.5.2         Scenario 1. 23

4.5.3         Scenario 2. 23

4.5.4         Scenario 3. 24

4.5.5         Scenario 4. 24

4.5.6         Scenario 5. 25

4.6        Task 3g - Conveyor driving (on dominance). 25

4.6.1         Resolution. 25

4.6.2         Scenario 1. 26

4.6.3         Scenario 2. 26

4.6.4         Scenario 3. 26

4.6.5         Scenario 4. 27

4.6.6         Scenario 5. 27

5       Flip-flops 29 29

5.1        Task 4g - Moving the conveyor from sensor to sensor (switch-off dominance). 29

5.1.1         Resolution. 29

5.1.2         Scenario 1. 29

5.1.3         Scenario 2.30

5.1.4         Scenario 3. 31

5.1.5         Scenario 4. 31

5.1.6         Scenario 5. 32

5.1.7         Scenario 6. 33

5.1.8         Scenario 7. 33

5.1.9         Scenario 8. 34

6       M memory (markers). 35. 35

6.1        Task 5a_0 - Moving the conveyor from sensor to sensor (switch-off dominance). 35

6.1.1         Resolution. 36

6.1.2         Scenario 1. 37

6.1.3         Scenario 2. 38

6.2        Task 5a_1 - Moving the conveyor from sensor to sensor (switch-off dominance). 39

6.2.1         Resolution. 40

6.2.2         Scenario 1. 41

6.2.3         Scenario 2. 42

6.2.4         Scenario 3. 43

6.2.5         Scenario 4. 44

6.2.6         Scenario 5. 46

6.3        Task 5c_1. 47

6.3.1         Resolution. 47

6.3.2         Scenario 1 – Heading left. 48

6.3.3         Scenario 2 - Left direction. 50

6.3.4         Scenario 3 - Heading left. 52

6.3.5         Scenario 4 - Heading left. 53

6.3.6         Scenario 5 - Heading left. 54

6.3.7         Scenario 6 - Heading left. 57

6.3.8         Scenario 1 - Right direction. 59

6.3.9         Scenario 2 - Right direction. 60

6.3.10      Scenario 3 - Direction to the right. 61

6.3.11      Scenario 4 - Direction to the right. 64

6.4        Task 5c_2. 65

6.4.1         Resolution. 65

6.4.2         Scenario 1. 66

6.4.3         Scenario 2. 67

6.4.4         Scenario 3. 69

6.4.5         Scenario 4. 71

6.4.6         Scenario 5. 72

6.4.7         Scenario 6. 74

6.4.8         Scenario 7. 76

7       System memory. 78 78

7.1        Task 6a – System byte 78

7.1.1         Termination. 78

7.1.2         Scenario 1. 78

7.1.3         Scenario 2. 79

8       Slopes. 81 81

8.1        Task 8a - Stopping product transport after passing the sensor. 81

8.1.1         Termination. 81

8.1.2         Scenario 1. 82

8.1.3         Scenario 2. 83

8.2        Task 8b - Start/Stop transport with the di_Start button 84 di_Start 84

8.2.1         Resolution. 85

8.2.2         Scenario 1. 86

8.2.3         Scenario 2. 87

8.2.4         Scenario 3. 89

9       Jumps 91 91

9.1        Task 9a - Turning the green LED light on/off. 91

9.1.1         Termination. 92

9.1.2         Scenario 1. 92

9.1.3         Scenario 2. 93

9.1.4         Scenario 3. 94

9.1.5         Scenario 4. 96

10         MOVE Statement.. 97. 97

10.1     Task 12 - Writing a value to a variable (memory area M). 97

10.1.1      Termination. 97

10.1.2      Scenario 1. 97

10.1.3      Scenario 2. 98

11         Conversion. 99 99

11.1     Task 17 - Converting the value from the BCD..99 setpoint

11.1.1      Termination. 99

11.1.2      Scenario 1.99

11.1.3      Scenario 2. 100

11.1.4      Scenario 3. 101

11.1.5      Scenario 4. 102

12         Arithmetic calculations. 103 103

12.1     Task 18 - increment. 103

12.1.1      Termination. 103

12.1.2      Scenario 1. 104

12.1.3      Scenario 2. 106

12.2     Math Problem 18 - Calculating the belt speed in mm/s. 107

12.2.1      Termination. 107

12.2.2      Scenario 1. 109

12.2.3      Scenario 2. 111

13         CALCULATE statement. 113 113

13.1     Task 19 - Calculation of the current position of the product on the belt. 113

13.1.1      Termination. 114

13.1.2      Scenario 1. 115

13.1.3      Scenario 2. 116

13.1.4      Scenario 3. 117

13.1.5      Scenario 4. 118

14         Comparison operations (comparators). 120 120

14.1     Task 22 - Comparing the value of the current speed 120

14.1.1      Termination. 120

14.1.2      Scenario 1. 120

14.1.3      Scenario 2. 121

15         Time measurement (timers). 123 123

15.1     Task 24b - Stopping the belt when the product has passed the sensor. 123

15.1.1      Termination. 123

15.1.2      Scenario 1. 124

15.1.3      Scenario 2. 125

15.1.4      Scenario 3. 126

15.1.5      Scenario 4. 127

15.2     Problem 24c - Calculating the actual belt speed. 128

15.2.1      Termination. 129

15.2.2      Scenario 1. 131

15.2.3      Scenario 2. 135

15.2.4      Scenario 3. 139

15.2.5      Scenario 4. 142

15.3     Exercise 24d - Measuring the length of a product. 144

15.3.1      Termination. 145

15.3.2      Scenario 1. 146

15.3.3      Scenario 2. 147

15.3.4      Scenario 3. 148

15.3.5      Scenario 4. 149