3. Write the program into PLC, observe the phenomenon and write the experience.

Six, experimental experience:

Training project traffic light control at the second intersection

Complete this experiment at the traffic light unit at the intersection.

First, the experimental purpose

Skillfully use basic instructions, master PLC programming methods and program debugging methods according to control requirements, and understand how to use PLC to solve a practical problem. Second, the experimental description

The signal lamp is controlled by the start switch. Turn on the start switch, and the signal light system will start to work. The north-south red light will light up first, and the east-west green light will light up. When the start switch is turned off, all the signal lights go out; The north-south red light is on for 25 seconds, the north-south red light is on, and the east-west green light is also on for 20 seconds; At 20 seconds, the green light of things flashes and goes out after 3 seconds. The east-west green light turns off and the east-west yellow light turns on for 2 seconds. In 2 seconds, things turn off to yellow and things turn on to red. At the same time, the north-south red light goes out, the green light goes on, and the east-west red light goes on for 25 seconds. The north-south green light stays on for 20 seconds, then flashes for 3 seconds and then goes out. At the same time, the north and south yellow lights are on and go out after 2 seconds. At this time, the north-south red light is on, and the east-west green light is on. Cycle after cycle. Third, the experimental panel diagram

Fourth, the experimental steps 1. Input-output table:

2. Turn on the host computer and download the program to the host computer. 3. Start and run the program to observe the experimental phenomenon.

An experimental report on verbs (abbreviation of verb)

1, draw the external wiring diagram:

G Y R G Y R

24V, write the experimental program:

0 LD 1 set 3 STL 4 LD 5 set 7 set 9 STL 10 out1out 14 LD 15 set 17 STL 18 out 2/.

end

m 8002 S0 S0 X000 s 2 1s 3 1s 2 1 Y000 T0 S22 t 1m 80 13 Y000 t 1 S23 y 00 1 T2 T2 S24 y 002 T3 s 3 1 Y006 T4 S32 Y004 T5 S33 S33 T6 m 80 13

K200

K30

K20

K250

K250

K200

K30

K20

2

Draw a ladder diagram

Six, experimental experience:

Training Project 3 Design of Elevator Control System

First, the purpose of training:

1, through the simulation of engineering examples, master the programming and program debugging methods of PLC. 2, further familiar with the I/O connection of PLC.

3. Be familiar with the programming method that the elevator on the third floor is controlled by the button outside the car. Second, the training equipment:

Th PLC- programmable control experimental device.

Third, the training content:

The elevator is called and controlled by the up and down call buttons installed at the entrance of each floor lobby, and its control content is the running direction of the elevator. There is a floor selection button S 1 ~ S3 in the elevator car, which is used to select the floor to stop. L 1 represents the first floor, L2 represents the second floor, L3 represents the third floor, and SQ 1 ~ SQ3 represents the in-position travel switch. The elevator only responds to the upward call when going up and only responds to the downward call when going down. Any call in the opposite direction is invalid. For example, if the elevator stops on the first floor and calls a car on the second floor, it must rise on the second floor.

Call button, the elevator will respond to the call (running from the first floor to the second floor), and pressing the call button on the second floor is invalid; On the other hand, if the elevator stops on the third floor and calls outside the car on the second floor, the elevator will respond to the call only by pressing the call button on the second floor (running from the third floor to the second floor), and pressing the call button on the second floor is invalid.

Fourth, the experimental report:

1. Assign input and output addresses and draw an allocation table:

2. Draw the external wiring diagram:

S2 S 1 U2

S3 L3 L2

L 1 above

SL3 SL2 SL 1

24V

3. Programming with basic instructions, sequential instructions and application instructions: 2) Design of program ideas;

1 set 2 LD 3 set 4 LD 5 set 6 LD 7 set 8 LD 9 set10ld 12 LD 13 set 14 LD 15 set/kloc.

45 sets of 46 RST 47 MPP 48 and 49 sets of 50 RST 51LD 52 RST 53 RST 54 OUT57 and 58 MPS 59 LD 60 or 6 1 ANB 62 sets of 63 RST 64 MPP 65 ANI 66 ANI 6 7 LD 68 or 69 ANB 70 sets of 71rst72 LD 73 rst 74 rst 75 out 78 and 79 LD 80 or 8 1

m 1x 007 M2 X003 m 1 102m 12 x 00 13 x 005 M22 x 004 M22 M40 m 0 10m 40 x 0 10m 40m 4 1m 40m 4 1 M6 5438+0 1t 65438

M42 M4 1 M42

x 0 1 1m 12 M2 M22 m 13 M23

M43 M42

x 0 12 M45 M42 M2 m 12 T2 T2

M 13 M23

M42 M43

m 13 M23 m 1 1m 1

m46 M43 M45 M23 m 13 T3 T3 M2 m 12m 1 1 M22 m 1

M46 M45

K50

K50

K50

87 LD M46

88 89 90 9 1 92 93 94 95 96 97 98 99 100 10 1 102 103 104 105 106 109 / kloc-0/ 10 65438+ 0 1 1 1 12 1 13 1 14 1 15 1 16 / kloc-0/ 17 1 18 1 19 1 20 12 1 122 123 124 125 1 26 127 128 129 130 13 1 132 133 65438+ 034 135 136 137 138 139 140 14 1

MPS and LD or LD ANI ANI ORB ANB set RST MPP and set rstld rstout and MPS LD or ANB set RST MPP ANI LD or ANB set RST LD OUT LD or out LD out LD out LD out LD out LD out LD out LD out LD out LD out LD out LD out LD out LD out LD out.

x 0 1 1m 12 M22 M2 m 1 1m 1 M47 M46

K50

x 0 10m 4 1m 46m 47m 22m 12 T4 T4

M 1 M 1 1

M46 M47

m 1 1m 1m 13 M23

M42 M47 m 4 1 Y002 M43 m 47y 00 1 M45 Y000 m 1 Y007 m 12 Y006 m 13 Y005 m 42 Y004 m 46 Y003

Five, the experimental matters needing attention:

1. Connect the circuit correctly according to the external wiring diagram.

2. When the program is written into THPLC-A programmable control experimental device, pay attention to that the controller should be in a state where the running indicator light is off.

3. If the ladder diagram is used for programming, it must be converted before it can be written into the controller.

4. After using the experimental equipment, it is necessary to put the experimental equipment back in place to provide convenience for other students to do experiments, and at the same time, attention should be paid to maintaining laboratory hygiene.

Six, experimental experience:

Plc training report template 3: Contents

abstract

PLC is powerful and widely used in production and life, among which Siemens S7? 200PLC is the most common in actual production. This comprehensive professional training is mainly aimed at Siemens S7? 200PLC hanging screen integrated module.

The main contents of this professional comprehensive training include: the wiring of PLC hanging screen integrated module, the drawing of electrical schematic diagram, the multi-speed control of running lights, traffic lights and mobile cars, the programming and debugging of A/D digital-to-analog conversion, the programming of corresponding touch screen programs, and the setting of inverter parameters.

Training one

First, the purpose of training:

Design the running water lamp control system.

Running water lamp control experiment

Second, the training requirements:

It is required to realize the circulating lighting of running water lamp, and the time interval is1s. It can start or stop at any time.

Third, the training content:

Using external buttons and editing touch screen interface, you can start and stop running lights respectively.

Fourth, experimental equipment.

1, a computer with STEP7-Micro/WIN4.0 programming software installed. 2.PC/PPI programming cable. 3. Lock some threads. 4. A 24V DC power supply. 5. Four 24V signal lights. 6.2 external buttons. 7. A set of installation tools. 8. Multimeter.

Verb (abbreviation of verb) implementation method:

According to the requirements of training topics, the programming ideas are as follows:

1. First, use the contacts M 1.3 and M 1.4 to control the power-on and power-off of the intermediate relay M0.2 respectively. Press M 1.3, M0.2 and Q0.6 to power on, and the contacts M0.2 and Q0.6 will act, the first light will be on, and the output Q0.6 will be self-locked, and the timer T33 will be started.

2. After1s, the contact T33 is closed, the second lamp is lit, the timer T34 is started, the contact Q0.7 locks the output Q0.7, so that Q0.6 loses power, the first lamp goes out, and the contacts Q0.6 and T33 are disconnected;

3. After1s, the contact T34 is closed, the third lamp is lit, and the timer T35 is started. The contact Q 1.0 acts, and the output Q 1.0 locks itself and makes Q0.7 lose power. The second lamp is turned off, and contacts Q0.7 and T34 are disconnected.

4. After1s, the contact T35 is closed, the first lamp is lit again, the timer T33 is started, and the contact Q0.6 moves, which makes the output Q0.6 self-lock, so that Q 1.0 loses power, the Three Lamps District goes out, and the contacts Q 1.0 and T35 are disconnected, and so on. 5. When M 1.4 is pressed, the output M0.2 is powered off, M0.2 is disconnected, all outputs are powered off, the lights are off, and the timer is reset.

I/O table is as follows:

Verb (abbreviation of verb) training results:

1) running water light control interface: press the start button, and the three lights will light up in turn; Press the stop button and the running water light will go out. 2) Running water lamp control program:

Exercise 2 Traffic Light Control Experiment

First, the purpose of training:

Design traffic light control system.

Second, the training requirements:

1. can realize complete stop and complete start;

2. The red light is on for 25s, the green light is on for 20s and the yellow light flashes for 5s; 3. Display the countdown room of each lamp on the touch screen.

Third, the training content:

Edit the touch screen man-machine interface, realize the start and stop of traffic lights through the touch screen, realize the real-time monitoring of traffic lights through the touch screen, and display the lighting time of each intersection on the touch screen.

Fourth, experimental equipment.

1, a computer with STEP7-Micro/WIN4.0 programming software installed. 2.PC/PPI programming cable. 3. Lock some threads. 4. A 24V DC power supply. 5. A WEINVIEW touch screen. 6. A set of installation tools. 7. Multimeter. 8. Communication cable between touch screen and PLC.

Verb (abbreviation of verb) implementation method:

According to the requirements of training topics, the programming ideas are as follows:

1. First, use the contacts M 1. 1 and M 1.2 to control the power-on and power-off of the intermediate relay M0. 1. Press M 1, M0. 1 to power on, and contact m0.

After 2.20S, T37 moves, T38 starts, Q2.3 loses power, Q2.4 gets power, that is, the east-west green light turns off and the east-west yellow light turns on;

After 3.0.5S, T38 will start, T39 will start, Q2.4 will be cut off, and the east and west yellow lights will go out;

4.0.5S later, T39 is turned off, T38 is turned off, Q2.4 is turned on, the east and west yellow lights are on, T39 is turned on again, T38 is restarted, and the counter C0 is increased by 1 (oscillation circuit);

5. When the counter C0 counts to 5 (the east-west yellow light flashes for 5S), the contact C0 moves, T37 and T38 are cleared, T40 starts, Q2.0 loses power, and Q2.5 and Q2. 1 are energized, that is, the north-south red light goes off, the north-south green light and the east-west red light go on;

6. After that, the flashing process of east, west and yellow lights is the same as above. When the counter C 1 counts five times, the contact C 1 is closed, and C0 and C 1 are cleared at the same time, and the contacts C0 and C 1 are reset to the next cycle.

7. In the whole process, the timer T34 and subtraction counters C2 and C3 are used to decrement once every second and displayed on the touch screen, and the initial countdown value of each lamp is transmitted to the corresponding counter by transmission instructions to realize the countdown function;

8. Press M 1.2, M0. 1 to power off and reset the contact M0. 1. All contacts in the program are reset, the output is powered off, and the traffic lights stop.

Verb (abbreviation of verb) training results:

1) Traffic light control interface:

The traffic lights are controlled by the start-stop button on the touch screen, and the time frame shows the countdown time of each intersection traffic light.

2) Traffic light control program:

Multi-speed control experiment of three sports cars training

First, the purpose of training:

Design the multi-speed control system of automobile.

Second, the training requirements:

The initial position of the trolley is on the left, and the limit switch 2 is closed.

Limit switch 2

Limit switch 1 limit switch

Automatic process:

1. Press the start button, and the car will run to the right at a speed of 50HZ.

2. When the limit switch 1 is touched, the car runs to the right at a speed of 30HZ.

3. After touching the limit switch 0, the car stops for 8s, and then runs to the left at a speed of 40HZ.

4. Touch the limit switch 1 again, and the car will run to the left at a speed of 20HZ.

5. Touch the limit switch 2, and repeat the above process after the car stops for 5 seconds. Requirements: it can be stopped at any time during operation; With reset function.

Manual process:

1, press the step button, the car will run to the right at a speed of 50Hz, and stop when it reaches the limit switch 1;

2. Press the forward button again, and the car will run to the right at a speed of 30Hz, and stop when it reaches the limit switch 0. Pressing the forward button again is invalid;

3. Press the back button, the car will run to the left at a speed of 50Hz, and stop after touching the limit switch 1;

4. Press the back button again, and the car will run to the left at a speed of 30Hz. Stop after touching limit switch 2. Pressing back again is invalid.

Requirements: The car can stop at any time.

Third, the training content:

Manual and automatic control of the car is realized by touch screen and PLC.

Fourth, experimental equipment.

1, a computer with WTEP7-Micro/WIN4.0 programming software installed. 2.PC/PPI programming cable. 3. Lock some threads. 4. A 24V DC power supply.

5. Six 24V signal lights (two red lights, two yellow lights and two green lights). 6. A WEINVIEW touch screen. 7. A set of installation tools. 8. Multimeter. 9. Delta frequency converter.

10, three-phase asynchronous motor. 1 1, communication cable between touch screen and PLC.

Verb (abbreviation of verb) implementation method:

According to the requirements of the training topic, the programming idea is as follows: automatic process:

1. First, use the contacts M20 and M2 1 to control the power-on and power-off of the intermediate relay M0.3 respectively. Press M20 and M0.3 to power on, the contact M0.3 is closed, and the outputs Q 1.2 and Q 1.6 are powered on. The motor rotates forward with a frequency of 50HZ.

2. When the limit switch 1 is reached (press M4.0), M0.4 is energized, the contact M0.4 moves, Q 1.5 is energized and Q 1.6 is de-energized, and the motor rotates forward at 30HZ;

3. When the limit switch 0 is reached (press M5.0), M0.5 is energized, T37 is started, the contact M0.5 moves, M0.4, Q 1.2 and Q 1.5 lose power, and the motor stops running;

T37 resets again after 4.8S, and M0.5 loses power and M0.6 gains power. Accordingly, M0.5 is reset, M0.6 is moved, Q 1.2, Q 1.3, Q 1.4, Q 1.5 is energized, and the motor rotates reversely, with the frequency of 40HZ

5. When the reverse limit switch 1 is reached (press M4.0), M0.7 is energized, the contact M0.7 moves, Q 1.5 loses power, and the motor reverses, with the frequency of 20HZ.

6. When the reverse limit switch 2 is reached (press M8.0), M3.0 is powered on, T38 is started, M3.0 acts, Q 1.2, Q 1.3, Q 1.4 are powered off, and the motor stops running;

After 7 or 5 seconds, T38 will reset, T38 will reset, M3.0 will lose power, the contact M3.0 will reset, and the motor will rotate forward again with a frequency of 50HZ, and so on.

8. Press M2. 1, M0.3 turns off, M0.3 turns off, and all outputs turn off;

9. Press M2.3, the counter C 1 count 1, and the contact C 1 is closed. At this time, it is in manual state; Press M2.4, C 1 will be cleared, and contact C 1 will be disconnected. At this point, it is in an automatic state.

Manual process;

After performing the above automatic process for one cycle, press and hold M8. 1 and M8.3, and the motor will rotate forward and backward at 30HZ respectively.

Input and output table:

Verb (abbreviation of verb) training results:

1) Multi-speed control interface of mobile car:

On the touch screen? Start? And then what? Stop? Buttons control the start and stop of the whole process of multi-speed movement of the car respectively. Manual and automatic buttons are used to switch between automatic process and manual process. When the system is in manual mode, the car will automatically run for one cycle and then stop running. Can you pass? Move forward manually? And then what? Back off manually? Two buttons manually make the car move forward and backward at a frequency of 30HZ.

2) Multi-speed control program of mobile car:

Training experience

The comprehensive training of PLC specialty is coming to an end. In this month's time, I successfully completed the training project and achieved ideal experimental results. Although I encountered some difficulties during the period, through the guidance of teachers and seniors, communication with classmates and access to relevant materials, I gradually got a clear idea and began to design and operate, thus successfully completing this comprehensive training.

I learned a lot through this comprehensive training. Not only did I know the main functions and characteristics of PLC, but I fully felt the powerful functions of PLC. I also learned the simple programming and debugging of PLC, deepened my understanding and mastery of the basic knowledge and software programming methods of PLC, learned to make touch screen interface with EB8000 software, and combined software and hardware, strengthened my original knowledge system, expanded my thinking, improved my hands-on practice and independent thinking ability, and cultivated my innovative spirit. In this training, I realized that my knowledge is not enough and my ability in some aspects is not enough. This also made me realize the importance of knowledge again. It's never too late to learn. Only by constantly enriching ourselves and perfecting our knowledge theory system can we be better qualified for future work. This comprehensive professional training has laid a good foundation for our further study and application in our work in the future. I will learn from it and find my own shortcomings, so as to further improve myself.