CN211044740U

CN211044740U - P L C experiment training control system

Info

Publication number: CN211044740U
Application number: CN201920835324.5U
Authority: CN
Inventors: 侯龙辉; 杜明才; 左振永; 刘萌萌; 余彦琼
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-07-17
Anticipated expiration: 2029-06-05

Abstract

The utility model relates to a real control system that instructs of P L C experiment, control system includes input module, output module, P L C control module, touch-sensitive screen module, power module, converter module, input module includes that binding post row constitutes, and every binding post all can connect input device above, output module includes that binding post row and human-computer interface constitute, all can connect output device above every binding post, real standard training interface, storage module of P L C control module includes CPU module, input module and output module, power module, communication interface, expansion interface, USB, touch-sensitive screen module includes CPU, LCD screen, touch panel, memory (128 MB), Download mouth, P L C mouth, USB Download mouth, standard clock, real standard training interface DC24V power interface, the utility model provides a fill personal use or school's experimental facilities vacancy, practice thrift the fund, satisfy same demand, can satisfy the many courses and more directly perceived clear and be convenient for maintenance P L C experiment control system.

Description

P L C experiment training control system

Technical Field

The utility model belongs to the technical field of the real control system of instructing of experiment, concretely relates to real control system of instructing of P L C experiment.

Background

1. The programmable logic controller P L C is a main professional core class of all the professions of the electromechanical class, is a necessary-to-repair class, the reinforced experimental training is a main means for mastering and learning the class, all colleges and universities pay more attention to the work, and experimental training equipment also becomes the most basic requirement for setting the class.

2. At present, training equipment and project contents of many colleges and universities are too old, the key is that the old equipment is far from the existing technology, students learn to find that the technology falls behind and is seriously disjointed from reality after learning, and a Siemens series P L C experimental training system is urgently needed to be purchased or developed for teaching requirements.

3. From the cost, school purchases complete equipment with the price several times or even dozens of times higher than that of school, so that the cost is saved, the fund plays the greatest role, and the teaching requirement is better met.

4. The purchased complete training equipment is not visual enough, students cannot directly see the hardware layout and internal wiring, the learning thought is not clear enough, and the direct teaching is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's not enough, and provide one kind and fill personal use or the real equipment vacancy of instructing of school's experiment, practice thrift the fund, satisfy same demand, can satisfy the real standard control system of instructing and the real standard control system of P L C experiment of more directly perceived clear and the maintenance of being convenient for of many courses.

The utility model aims at realizing a real control system that instructs of P L C experiment, control system includes input module, output module, P L C control module, touch-sensitive screen module, power module, converter module.

The input module comprises a terminal block group, and each terminal block can be connected with input equipment.

The output module includes: the wiring terminal strip and the human-computer interface are formed, and each wiring terminal can be connected with an output device.

The P L C control module comprises a CPU module, an input module, an output module, a power module, a communication interface, an expansion interface and a storage module.

The touch screen module comprises a CPU, a liquid crystal display, a touch panel, a memory (128 MB), a Download port, a P L C port, a USB Download port, a standard clock and a DC24V power interface.

The power module is guide tracked installation switching power supply, includes: ground, an AC220V input, two DC24V output anodes, and two DC24V output cathodes.

The frequency converter module includes: rectifier circuit, middle direct current filter circuit, inverter circuit, braking circuit, control circuit.

The utility model has the advantages of 1, fill up personal use or the experimental practical training equipment vacancy of school, for satisfying personal use or school 'S teaching demand, project group absorbs the advantage of like product, combine actual conditions among the industrial control, adapt to new technology teaching development simultaneously, this S7-200P L C programmable controller of new development siemens instructs device in fact, the device is by water tower automatic control, washing machine automatic control, mail sorting machine system, automatic vending machine system, automatic molding system, the simulation television launching tower, autoloading loading system, electroplating autonomous system etc. this presentation device can further strengthen student' S application proficiency and skill to programmable controller programming, more know actual industrial control application condition simultaneously, this presentation system is for improving the strenghthened type, be fit for the study in different learning stages, it is more nimble to use, teacher and student can independently program the demonstration according to own particular case, also can program according to the input output of this factory definition again.

2. The cost is not as high as that of the complete equipment which is purchased by a person or a school and costs several times or even dozens of times higher than the price, the cost is saved, the fund plays the maximum role, and the teaching requirement is better met.

3. Can satisfy real standard of many courses

The training system can meet the training requirements of at least three courses, and more than 300 items can be made by the P L C, the frequency converter and the touch screen, so that students can learn real technology, and the vacancy that schools lack a Siemens S7-200 training room, a frequency converter, a training room and a touch screen training room is filled.

4. More visual and clear and convenient for maintenance

Many integrated equipment are unfavorable for the structure and the wiring of customer study external hardware to the understanding of whole set of system is known in the influence, and this set of experimental training system is more directly perceived, and the customer can clearly see the structure and the wiring of external hardware, and is surveyable, is favorable to system study and use, especially is more favorable to the beginner. In addition, due to the characteristic, if the system fails, only the failed part needs to be replaced, so that the system is convenient to maintain, and the overhauling time and cost are saved.

Drawings

Fig. 1 is a front view of the P L C experimental training control system of the present invention.

Fig. 2 is a system block diagram of the P L C experimental training control system of the present invention.

Fig. 3 is a front view of the input module of fig. 1.

Fig. 4 is a front view of the input module of fig. 1.

Fig. 5 is a front view of the output module of fig. 1.

Fig. 6 is a front view of the touch screen module of fig. 1.

Fig. 7 is a front view of the power module of fig. 1.

Fig. 8 is a front view of the frequency converter module of fig. 1.

In the figure, the device comprises a power module 1, a power module 2, a P L C control module 3, an input module 4, an output module 5, a download port 6, a P L C port 7, a frequency converter module 8 and a touch screen module.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 8, a P L C experimental training control system includes an input module 3, an output module 4, a P L C control module 2, a touch screen module 8, a power module 1, and a frequency converter module 7.

In this example

Communication among P L C, touch screen and frequency converter

P L C communicates with the touch screen, as follows:

① traffic light control system, the concrete operation steps are as follows:

step one, installing SETP7-Micro/Win V4.0 SP6 software and a trusted touch screen TouchWin editing tool on a computer respectively.

Step two, firstly, a control program of the traffic signal lamp is written on SETP7-Micro/Win V4.0 SP6 software, and the realized function is that a daytime starting button is pressed: after 25S of red signal lamp lighting in east-west direction, 20S of green signal lamp lighting flickers for 3S, and 2S of yellow signal lamp lighting, red signal lamp lighting again; meanwhile, after the green light in the north-south direction is lightened for 20S and flickers for 3S, after the red light is lightened after the green light is lightened for 2S, the green light is lightened again after the red light signal light is lightened for 25S; pressing a night starting button, wherein only yellow lamps twinkle in the east-west direction and the south-north direction; when a shutdown is desired: the stop button is pressed.

And thirdly, editing a control picture of the traffic signal lamp on a TouchWin editing tool of the Credit touch screen, wherein the button parameters are set to be M of the corresponding P L C program, and the signal lamp corresponds to Q of the P L C program respectively.

And step four, connecting the S7-200 Siemens P L C with a dedicated information touch screen by using a communication line, and controlling the P L C to operate by using a button of the touch screen.

② control system of artistic color lamps, the concrete operation steps are as follows:

the first step and the fourth step are the same as above.

Changing the function of the second step into that the artistic colored lamp has eight groups of lamps with different colors, the number of the lamps is 1-8, a plurality of each group is provided, a starting button is pressed, and the 8 lamps are fully lightened after being sequentially lightened clockwise one by one at intervals of 0.5S according to the sequence of 1 to 8; then according to the sequence of 8-1, 8 lamps are fully lighted after being sequentially lighted anticlockwise one by one at the interval of 0.5S; and the cycle is analogized in turn. Pressing the stop button, 8 lights stop. "

Here, only two items are selected, and others are many and cannot be listed.

The communication among the P L C, the touch screen, and the frequency converter is as follows:

designing a control system of three-speed of the motor:

the implemented function is "press start button: the motor operates at a multi-stage speed of 0, 1 after 5S, 2 after 5S, 3 after 5S, 4 after 5S, 5 after 5S, 6 after 5S, and 7 after 5S. And pressing a stop button to stop the motor. "

Step two, firstly, compiling a control program of eight-stage speed of the motor on SETP7-Micro/Win V4.0 SP6 software, pressing a start button, switching on an intermediate auxiliary relay M0.0, switching on M0.1 after an interval of 5S, and switching off M0.0; after the interval of 5S, M0.2 is switched on, and M0.1 is switched off; after the interval of 5S, M0.3 is switched on, and M0.2 is switched off; after an interval of 5S, M0.4 is switched on, and M0.3 is switched off; after the interval of 5S, M0.5 is switched on, and M0.4 is switched off; after the interval of 5S, M0.6 is switched on, and M0.5 is switched off; after an interval of 5S, M0.7 is on, M0.6 is off; when the stop button is pressed, all the intermediate auxiliary relays are turned off. Then M0.1 turns on Q0.0, M0.2 turns on Q0.1, M0.3 turns on Q0.0 and Q0.1, M0.4 turns on Q0.2, M0.5 turns on Q0.2 and Q0., M0.6 turns on Q0.2 and Q0.1, M0.7 turns on Q0.2, Q0.1, Q0.0, wherein M0.0 does not turn on Q0.0, Q0.1, Q0.2. Q0.0, Q0.1 and Q0.2 are connected to DI1, DI2 and DI3 of the frequency converter, and the eight-stage speed is shown in the following table:

and thirdly, editing a control picture of eight-section speed of the motor on a TouchWin editing tool of the agile touch screen, wherein three relays correspond to Q of a P L C program respectively, and the agile touch screen and the S7-200 Siemens P L C communication line are connected together.

And step four, connecting the motor to corresponding output U, V, W of the frequency converter, respectively connecting Q0.0, Q0.1 and Q0.2 of the P L C to corresponding frequency converters DI1, DI2 and DI3, setting parameters F8-00, F8-01, F8-02, F8-03, F8-04, F8-05, F8-06, F8-07 and F8-08 of the frequency converters, and controlling the P L C, the frequency converters and the motor to operate at eight-stage speed through buttons of a touch screen.

Example 2

Example 3

Example 4

In this embodiment, the CPU module (the CPU288 and the CPU226CN are respectively adopted in the two versions of the device P L C), the input module and the output module (the 30DI/26DO connection terminal and the 24DI/16DO connection terminal are respectively adopted in the two versions of the device P L C), the power module (the two versions of the device P L C are suitable for the input voltages of ac220V and dc 24V), the communication interface (the two versions of the device P L C both adopt 2-way RS485 communication interfaces, wherein two ethernet ports are additionally added to the model P L C of the CPU 288), the expansion interface, and the storage module (the two versions of the device P L C both include a program storage space 24K and a user data storage space 10K).

Example 5

Example 6

Example 7

The present invention is further described in the detailed description, rather than in the limited form thereof, and it will be obvious to those skilled in the art that changes may be made in the structure without departing from the spirit and scope of the invention, and it is intended that all such changes be covered by the appended claims.

Claims

1. A P L C experimental training control system is characterized by comprising an input module, an output module, a P L C control module, a touch screen module, a power supply module and a frequency converter module.

2. The practical training control system for the P L C experiment as claimed in claim 1, wherein the input module includes a terminal block, each terminal block being adapted to receive an input device.

3. The practical training control system for the P L C experiment as claimed in claim 1, wherein the output module comprises a terminal block and a human-computer interface, and each terminal block is connected to an output device.

4. The P L C experimental practical training control system of claim 1, wherein the P L C control module comprises a CPU module, an input module, an output module, a power module, a communication interface, an expansion interface, and a storage module.

5. The P L C experimental training control system of claim 1, wherein the touch screen module comprises a CPU, a liquid crystal display, a touch panel, a memory (128 MB), a Download port, a P L C port, a USB Download port, a standard clock, and a DC24V power interface.

6. The practical training control system for the P L C experiment as claimed in claim 1, wherein the power module is a rail-mounted switching power supply and includes a ground port, an AC220V input port, two DC24V output anodes, and two DC24V output cathodes.

7. The P L C experimental practical training control system according to claim 1, wherein the frequency converter module comprises a rectification circuit, an intermediate direct current filter circuit, an inverter circuit, a brake circuit, and a control circuit.