CN211826998U

CN211826998U - Novel industrial network training platform

Info

Publication number: CN211826998U
Application number: CN202020415635.9U
Authority: CN
Inventors: 刘通; 曾华鹏; 汤莉; 彭伟; 李双
Original assignee: Tianjin Sino German University of Applied Sciences
Current assignee: Tianjin Sino German University of Applied Sciences
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-30
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a novel industrial network training platform, which comprises a frame; a PLC module, a touch screen module, a distributed input and output module, a frequency converter module, a motor module and a switch module are hung on the front face of the rack; a power supply module is hung on the upper part of the back surface of the rack; the back of the frame is provided with a wiring terminal block module; the wiring terminal block module is connected with the distributed input and output module; the outer surface of the frame is sprayed with insulating paint; the bottom of the frame is fixedly connected with horizontally distributed supporting platforms; four corners of the bottom of the supporting platform are respectively provided with a universal wheel with a locking mechanism; the power module is connected with the PLC module, the touch screen module, the distributed input and output module, the frequency converter module, the motor module, the switch module and the wiring terminal table module through electrified wires. The utility model discloses can be according to the demand, nimble typical industrial network that founds can synthesize the ability of cultivateing student's applied knowledge solution problem.

Description

Novel industrial network training platform

Technical Field

The utility model relates to a real standard platform technical field of industrial network especially relates to a real standard platform of novel industrial network.

Background

The industrial network technology is an important course of an automation specialty, the course is high in theory and practice, the theory and practice integration is an effective teaching method of the course, and the practical training platform is an important carrier of the course, so that students can understand industrial network knowledge more intuitively and effectively and master industrial network technologies such as networking, programming, installation, debugging and the like.

However, the conventional practical training platform cannot systematically cover all layers from supervision, control and I/O to equipment in terms of functions, and is single in configuration structure, and lacks flexibility and openness.

Secondly, most of the traditional training platforms only relate to the teaching of one bus, and the modern manufacturing industry often relates to the problems of compatibility, interconnection and interoperation of various buses.

Thirdly, the traditional practical training platform emphasizes more software programming, less comprehensively cultivates skills such as system design, hardware connection, online debugging and the like, and does not have teaching conditions for developing grouping and post-separating by combining occupational concepts under the field of vision of Holland.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel real platform of instructing of industrial network to the technical defect who exists among the prior art.

Therefore, the utility model provides a novel industrial network training platform, which comprises a vertically placed frame;

the front side of the frame is hung with a PLC module, a touch screen module, a distributed input and output module, a frequency converter module, a motor module and a switch module;

the upper part of the front surface of the frame is provided with linear guide rails which are transversely distributed;

the PLC module is arranged on the linear guide rail;

the power module is hung on the upper part of the back of the rack;

a wiring terminal block module is arranged on the back of the frame and at the position corresponding to the distributed input and output module;

the rack is made of a metal mesh plate, and insulating paint is sprayed on the outer surface of the rack, so that a wire groove and a guide rail can be conveniently installed, and other equipment can be conveniently hung;

the bottom of the frame is fixedly connected with horizontally distributed supporting platforms;

four corners of the bottom of the supporting platform are respectively provided with a universal wheel with a locking mechanism;

the power supply module is connected with the PLC module, the touch screen module, the distributed input and output module, the frequency converter module, the motor module, the switch module and the wiring terminal table module through electrified wires and is used for supplying working electricity for the modules;

the PLC module, the touch screen module, the distributed input and output module, the frequency converter module, the motor module, the switch module and the wiring terminal block module are connected together through a plurality of connecting cables to realize data communication.

Wherein, power module is connected with outside alternating current power supply to the access air switch on the connecting wire between power module and the outside alternating current power supply.

The power supply module adopts Siemens S7-400PLC series SITOP power supply units and is used for converting 380V alternating current into 24V direct current.

The switch module is respectively connected with the PLC module and the touch screen module and used for PN bus networking.

The touch screen module is used for displaying and monitoring input signals and output signals of the PLC module.

The touch screen module has a PN bus communication function and is respectively connected with the switch module and the PLC module, and the touch screen module is used for forming a PN network together with the switch module and the PLC module.

Wherein, the power module is arranged on the back of the frame.

The frequency converter module is connected with the motor module and is used for controlling the operation of the motor module;

the motor module is a three-phase asynchronous motor;

the motor module is arranged at the top of the front end of the supporting platform fixed at the bottom of the frame.

By the above the utility model provides a technical scheme is visible, compares with prior art, the utility model provides a novel real platform of instructing of industrial network, its structural design science has integrated the PN and the DP communications facilities of common siemens, can be according to the demand, found typical industrial network in a flexible way.

And simultaneously, through the utility model discloses a novel real platform of instructing of industrial network not only can let the student master how to realize typical industrial network through configuration and programming, still studied practical skill such as wiring, installation and debugging simultaneously, synthesize the ability of cultivateing student's applied knowledge solution problem, more have confidence ground to violent employment competition environment, be favorable to using widely, have great practical significance.

Drawings

Fig. 1 is a block diagram of a novel industrial network training platform provided by the present invention;

fig. 2 is a schematic front structural diagram of a novel industrial network practical training platform provided by the present invention;

fig. 3 is a schematic side structure diagram of a novel industrial network training platform provided by the present invention;

fig. 4 is a schematic back structure diagram of a novel industrial network practical training platform provided by the present invention;

fig. 5 is the utility model provides a novel real standard flow diagram of platform of industrial network.

Detailed Description

In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.

The utility model provides a novel real platform of instructing of industrial network is a real platform design scheme of instructing of industrial network based on Siemens S7-400PLC, in particular to integrated Siemens S7-400PLC, fuses the real platform of instructing of Profinet (hereinafter referred to as PN) and Profibus-DP (hereinafter referred to as DP) industrial field bus technique.

Referring to fig. 1 to 5, the utility model provides a novel industrial network training platform, which comprises a vertically disposed frame 1;

a PLC (programmable logic controller) module 3, a touch screen module 4, a distributed input/output (I/O) module 5, a frequency converter module 6, a motor module 7 and an exchanger module 8 are hung on the front surface of the frame 1;

the upper part of the front surface of the frame 1 is provided with a linear guide rail 12 which is transversely distributed;

the PLC module 3 is arranged on the linear guide rail 12 (can be connected with a slide block on the linear guide rail 12);

the power module 2 is hung on the upper part of the back of the frame 1;

a terminal block module 9 is provided on the back surface of the rack 1 at a position corresponding to the distributed input/output (I/O) module 5;

the wiring terminal block module 9 is connected to the distributed input/output (I/O) module 5;

the rack 1 is made of a metal mesh plate, and insulating paint is sprayed on the outer surface of the rack 1, so that a wire groove and a guide rail can be conveniently installed, and other equipment can be conveniently mounted;

the bottom of the frame 1 is fixedly connected with horizontally distributed supporting platforms 10;

four corners of the bottom of the supporting platform 10 are respectively provided with a universal wheel 11 with a locking mechanism;

the power module 2 is connected with a PLC (programmable logic controller) module 3, a touch screen module 4, a distributed input/output (I/O) module 5, a frequency converter module 6, a motor module 7, a switch module 8 and a wiring terminal block module 9 through electrified wires and is used for providing working electricity for the modules;

a PLC (programmable logic controller) module 3, a touch screen module 4, a distributed input/output (I/O) module 5, a frequency converter module 6, a motor module 7, a switch module 8, and a terminal block module 9 are connected to each other by a plurality of connection cables 20 to realize data communication.

The utility model discloses in, on specifically realizing, power module 2 is connected with outside alternating current power supply to the air switch that inserts on the connecting wire between power module 2 and the outside alternating current power supply, therefore have the short-circuit protection function.

In particular, the power module 2 adopts a Siemens S7-400PLC series SITOP power supply unit for converting 380V alternating current into 24V direct current, and has a short-circuit protection function by connecting an air switch.

The utility model discloses in, on specifically realizing, the industry switch product is chooseed for use to switch module 8, connects PLC module 3 and touch-sensitive screen module 4 respectively for PN bus network deployment.

The utility model discloses in, on specifically realizing, touch-sensitive screen module 4 for the input signal, the output signal to PLC module 3 show the control, can also control PLC module 3.

In the concrete realization, touch-sensitive screen module 4 is based on 1 KTP1000 PN realization, has 10 cun/256 look touch-sensitive screens, possesses PN bus communication function, through connecting switch module 8, with the communication of the PLC module 3 of being connected on switch module 8 altogether, constitutes the PN network. The touch screen module is used as a monitoring layer of the platform, and a relatively friendly man-machine interaction interface can display data information collected from the PLC and also can send a control instruction to the PLC.

To utility model, touch-sensitive screen module 4 possesses PN bus communication function, is connected with switch module 8 and PLC module 3 respectively, and touch-sensitive screen module 4 is used for forming the PN network with switch module 8 and PLC module 3 together.

The utility model discloses in, on specifically realizing, power module 2 installs at the back of frame 1 to can conveniently carry out the line to power module 2's rear end.

In the present invention, in the specific implementation, the PLC module 3 includes two programmable logic controllers (specifically, two siemens S7-400 PLC). The 400 type PLC is commonly used for a large-scale electric automatic control system, can realize redundant control and has the functions of PN and DP bus communication. The PLC module is as the control layer of this platform, and 1 PLC module connection switch module of optional and the touch-sensitive screen module of being connected on the switch module in common constitutes the PN network. Meanwhile, by applying DP bus technology, the PLC module is used as a master station, the other 1 PLC module is used as a slave station to form a DP network, and the PLC slave station can be used as an intelligent I/O. In addition, by applying DP bus technology, the PLC master station can be connected with the distributed I/O module to form a DP network.

In the present invention, in the specific implementation, the distributed input/output (I/O) module 5 is implemented based on a siemens ET200M interface module, can only be used as a slave station in a DP network, has a configuration technology of S7-400 automation system, and is composed of an IM153-2 interface module and two input/output (I/O) modules.

The utility model discloses in, on specifically realizing, terminal platform module 9, on distributed input/output (I/O) module 5 basis, at frame 1's back design terminal platform module 9, draw forth the wiring that two distributed input/output (I/O) modules 5 correspond, reserve analog quantity input/output, digital quantity input/output interface, the expansibility and the opening of reinforcing platform.

The utility model discloses in, specifically realize upward, converter module 6, based on 1 SINAMICS G120 module realization, can only regard as the slave station to use in the DP network, have default mill's set up parameter, be the ideal frequency conversion transmission for the power supply of variable speed control system, have the display screen that shows motor speed.

In particular, the frequency converter module 6 is connected to the motor module 7, and is configured to control the operation of the motor module 7.

In concrete implementation, the motor module 7 specifically adopts a three-phase asynchronous motor, and the functions of starting, stopping, forward and reverse rotation and speed regulation of the motor can be realized through the control of the frequency converter module 6.

In the concrete implementation, the motor module 7 is installed at the top of the front end of a supporting platform 10 fixed at the bottom of the frame 1.

It should be noted that, in view of the fact that the three-phase asynchronous motor is heavy and can form a large airflow and noise, the three-phase asynchronous motor is disposed at the lower end of the front face of the frame 1, so as to facilitate the overall stability of the frame 1 and avoid affecting teaching operations of teachers and students.

The utility model discloses in, on specifically realizing, connecting cable 20 can adopt the supporting communication connecting cable of siemens, and DP network cable has the terminal resistance and sets up the function.

The utility model discloses in, on specifically realizing, the utility model discloses still including supporting PLC programming, debugging computer and programmer for use.

The computer is connected with the programmer and is used for carrying out hardware configuration, ladder diagram programming and online debugging on the PLC module 3 and carrying out interface design on the touch screen module 4 through the programmer;

the programmer (also called a burner, a writer) may be connected to the PLC module 3 or the touch screen module 4, respectively, for downloading the program through the programmer.

It should be noted that, in the specific implementation, STEP7 programming software is used on a computer to perform hardware configuration, ladder programming and online debugging on the programmable controllers S7-400PLC, WinCC Flexible software is used to perform interface design on the KTP1000DP touch screen, and a programmer can download programs to the PLC module 3 and the touch screen module 4.

It should be noted that, to the utility model discloses, its industrial network structure that combines PN and DP bus interconnection, based on platform configuration, the nimble characteristics of network deployment, through software programming, cable connection and online debugging, can realize from control, IO to the nimble communication of each layer of equipment, wherein control, control layer application PN bus, control, IO to equipment layer application DP bus, utilize the real project of instructing of teaching of platform development.

The utility model discloses, based on the wide application of PN and DP field bus in industrial network, PN and DP bus are fused to the platform, combine the nimble characteristics of configuration, can realize typical industrial network construction between modules such as touch-sensitive screen, PLC, distributed IO, converter, realize from control, IO to the full chain communication control of equipment each layer. Based on the characteristic of strong expansibility of distributed I/O, a wiring terminal table (namely a wiring terminal table module) is designed at the back of the frame, and wiring corresponding to the I/O is led out, so that the functions of the platform are more open, and the development of graduation design and development engineering projects are facilitated. By using platform teaching, students can understand industrial network knowledge more intuitively and systematically and master and use industrial network technology. The method is close to the practical training project of engineering matching design teaching, guides students to analyze project requirements, formulates a physical topological structure diagram, reasonably selects PN and DP networks, flexibly configures each module, connects cables to complete industrial network construction, uses STEP7 on a computer to perform hardware configuration, ladder diagram programming and online debugging on S7-400PLC, uses WinCC flex to perform interface design on a KTP1000 PN touch screen, and comprehensively exercises the capacities of student system design, hardware connection, software programming, system debugging and fault analysis and processing. In addition, the teaching method of grouping the posts is adopted by combining the career direction concept according to the practical training project, the posts of a demand engineer, a research and development engineer, a field engineer and the like are set, the project implementation process is simulated, the posts are alternated, the students can contact the future work posts in advance, and the employment competitiveness is improved.

As for the novel industrial network practical training platform provided by the utility model, as an industrial network practical training platform based on Siemens S7-400PLC, a practical training case is designed according to a project development process, and the teaching is developed by grouping and separating posts and setting 3 posts of requirements, research and development and field engineers, firstly, students are guided to analyze project requirements (requirement engineers); secondly, designing a technical scheme according to requirements, and selecting proper equipment from the platform to draw a network structure diagram (the requirements and research and development engineers are jointly completed); the third step, the concrete implementation, mainly include hardware configuration, ladder diagram programming, interface design (research and development engineer) of the touch-sensitive screen; fourthly, system wiring, network address and terminal resistance setting (field engineer); and fifthly, performing program downloading, online debugging and verification work (the requirement, research and development and field engineers are completed together). The training process is shown in fig. 5.

To the utility model discloses a real platform of instructing of industrial network based on Siemens S7-400PLC, concrete configuration communication type includes:

1. a single PLC module communicates with the DP bus of the distributed I/O module,

the single S7-400PLC module serves as a master station, the ET200M distributed I/O module serves as a slave station to form a DP network, the PLC module reads the states of 16 switches on the ET200M, and the on and off of the LED lamps on the PLC module are set according to the states of the switches respectively.

The method specifically comprises the following steps: the S7-400PLC module is used as a master station, the ET200M distributed I/O module is used as a slave station, 1 DP cable is connected with the PLC module and the ET200M module, the terminal resistors at two ends are set to be ON, and the ET200M module address is set to form a DP network. The operating computer uses STEP7 to perform hardware configuration, ladder programming and online debugging, and supplies power to the platform to download programs to the PLC through the programmer. The PLC reads the states of the 16 switches on the ET200M module via the DP network and, depending on the state of each switch, displays locally in the PLC the following LED: "ON" is ON and "OFF" is OFF.

2. And the single PLC module, the distributed I/O module and the frequency converter module are communicated with a DP bus of the motor module.

The single S7-400PLC module serves as a master station, the ET200M distributed I/O module and the SINAMICS G120 frequency converter module serve as slave stations to form a DP network, the PLC module reads the state of a switch on the ET200M, the frequency converter is controlled according to the state of the switch, further the starting and stopping, forward and reverse rotation and high, medium and low three-gear speed regulation of a motor (equipment layer) are controlled, and the rotating speed of the motor is observed through the frequency converter.

The method specifically comprises the following steps: the single S7-400PLC module serves as a master station, and the ET200M distributed I/O modules and SINAMICS G120 serve as slave stations. Connecting 1 DP cable with PLC and ET200M, connecting 1 cable with PLC and converter, because PLC module and converter module are initiating terminal and end, the terminal resistance sets to "ON", the distributed I/O module is the intermediate node, the terminal resistance sets to "OFF", set up ET200M address, form DP network. The computer is operated to use STEP7 to carry out hardware configuration, ladder diagram programming and online debugging, and after the platform is powered on, the program is downloaded to the PLC through the programmer. The PLC master station reads the states of 5 switches on the ET200M through a DP network, and controls the frequency converter according to the switch states, thereby controlling the start-stop, the forward and reverse rotation and the three-gear speed regulation of the motor. A switch I1.0 of the distributed I/O module is used as a start-stop control bit of the frequency converter (the ON is starting, and the OFF is stopping); switches I1.1, I1.2 and I1.3 of the distributed I/O module are used as control bits of the frequency converter and respectively represent 25 percent, 50 percent and 100 percent of full-scale range (50 Hz); the switch I1.4 of the distributed I/O module is used as a control bit for forward and reverse rotation of the frequency converter, wherein OFF is forward rotation, and ON is reverse rotation. Meanwhile, the display screen of the frequency converter can observe the rotating speed of the motor in real time so as to verify.

3. DP bus communication of two PLC modules and distributed I/O module

An S7-400PLC module is used as a master station, an ET200M distributed I/O module and another S7-400PLC module are used as slave stations to form a DP network, the PLC master station reads the state of a switch on the ET200M and transmits the information of the state of the switch to the PLC slave stations, and the PLC slave stations are correspondingly provided with the on-off states of LED lamps according to the states of the switches.

The method specifically comprises the following steps: one S7-400PLC module serves as a master station, and the other S7-400PLC and ET200M distributed I/O serve as slave stations. And connecting 1 DP cable with 2 PLCs, and connecting 1 DP cable with the PLC serving as a main station and the distributed I/O. Since 2 PLCs are the start and end, the termination resistance is set to "ON", ET200M is the intermediate node, the termination resistance is set to "OFF", and the ET200M address is set, forming a DP network. The computer is operated to use STEP7 to carry out hardware configuration, ladder diagram programming and online debugging, and after the platform is powered on, the program is downloaded to the PLC through the programmer. The PLC master station reads the states of 16 switches on the ET200M and sends the switch states to the PLC slave stations, and the PLC slave stations correspondingly set the on and off of the LED lamps on the PLC slave stations according to the switch states fed back by the master station.

4. The system comprises a switch module, a single PLC module, a touch screen module, a distributed I/O module, a terminal block module (which can be connected with external expansion equipment), a frequency converter module and a motor module, wherein the PN and the DP are compatible for bus communication.

The switch, the single S7-400PLC module and the touch screen KTP1000 PN form a PN network. Meanwhile, the PLC is used as a master station, and the ET200M distributed I/O and SINAMICS G120 frequency converters are used as slave stations to form a DP network. Through the PN network, the touch screen sends a control signal to the PLC, and the PLC controls the frequency converter module through the DP network, so as to control the start-stop, the forward and reverse rotation and the speed regulation of the motor module. Meanwhile, signals can be collected reversely, data are transmitted to the PN network from the DP network, and states of start and stop, positive and negative rotation and rotating speed of the motor are displayed on the touch screen finally. In addition, the input/output device of analog/digital quantity can be externally connected through the wiring terminal table to be used as a device layer to be expanded of the platform. For example, input devices, switches, sensors, etc. commonly used in industrial control, output devices, indicator lights, solenoid valves, stepper motors, etc. commonly used in industrial control. Through the PN network, the touch screen sends a control signal to the PLC, the PLC controls equipment expanded from the wiring terminal table through the DP network, and signals can be reversely acquired and displayed on the touch screen, so that the monitoring function is realized.

In the concrete implementation, a single S7-400PLC and a touch screen KTP1000 PN are respectively connected with an industrial switch through a special network cable to form a PN network. Meanwhile, the PLC is used as a master station, the ET200M and the frequency converter are used as slave stations, 1 DP cable is connected with the PLC and the ET200M, and 1 DP cable is connected with the PLC and the frequency converter. Because the PLC and the frequency converter are the starting end and the tail end, the terminal resistor is set to be ON, the other terminals are used as intermediate nodes, the terminal resistor is set to be OFF, and the ET200M address is set to form a DP network. The operating computer uses STEP7 to carry out hardware configuration, ladder diagram programming and online debugging, and through the mode of inserting HMI STATION, can realize the integration of WinCC Flexible in STEP7, realize that WinCC Flexible is to KTP1000 PN touch screen interface design, after supplying power for the platform, download the program to PLC and touch screen through the programmer. The PLC master station reads the states of 16 switches on the ET200M through the DP bus, and transmits information to the touch screen through the PN bus and displays the information. The touch screen can insert buttons, an input frame, a display frame, an indicator light and other controls, control signals are sent to the PLC through the PN bus, the PLC controls the frequency converter through the DP bus, and then the start-stop, the forward and reverse rotation and the speed regulation of the motor are controlled, signals can be reversely acquired at the same time, and the states of the start-stop, the forward and reverse rotation and the rotating speed of the motor are displayed on the touch screen in real time. In addition, the external expansion analog/digital input/output equipment can be connected through a wiring terminal platform led out by distributed I/O, the touch screen is communicated with the PLC through a PN bus, and the PLC is communicated with the external expansion equipment through a DP bus, so that the control, signal acquisition and display of the external expansion equipment are realized.

According to the technical solution provided by the utility model, to the utility model discloses, the utility model discloses a to the not enough of above-mentioned current product, provided one kind based on Siemens S7-400PLC, relate to supervision, control, IO, equipment each layer, fuse the real platform design scheme of instructing of industrial network of PN and DP field bus technique.

To traditional real platform of instructing, in function, can not cover systematically from supervision, control, IO to equipment each layer, and configuration single structure, lack the problem of flexibility and open type, the utility model discloses a novel real platform of instructing of industrial network chooses for use the touch-sensitive screen module as the supervisory control layer, and the PLC module is as the control layer, and distributing type IO module and the binding post platform that corresponds are as IO layer, and converter module, motor are as the equipment layer to the equipment that can use the binding post platform extension is as the equipment layer. Each module adopts a discrete structure design and can be flexibly selected according to the requirement.

In addition, the traditional training platform only relates to teaching of one bus, and the modern manufacturing industry often relates to the problems of compatibility, interconnection and interoperation of various buses. The utility model discloses a novel real platform of instructing of industrial network, based on Siemens series PLC and its PN, the wide application of DP bus in industrial network, PN bus is chooseed for use at supervision and control layer to this platform, chooses the DP bus for use at control, IO and equipment layer, accords with the industrial network control structure of current manufacturing mainstream.

Compared with the prior art, the utility model provides a real platform of instructing of novel industrial network has following advantage and positive effect:

1. the platform has comprehensive functions and can realize communication control from monitoring, control and I/O to each layer of equipment.

2. The platform configuration is flexible, and various typical industrial networks can be constructed by selecting the connection modules according to the needs.

3. The bus technology of the equipment and the application selected by the platform has a large market share in the modern industrial network, so that students can conveniently master the mainstream technology, the platform is suitable for future employment posts, and the employment competitiveness is improved.

4. The platform has strong openness, and the wiring terminal led out based on the distributed I/O of the platform enhances the expansibility of the system, so that the platform has the functions of making graduation design topics and developing actual engineering projects.

5. The rack on the platform is designed by adopting a reticular plate, which is beneficial to the installation and wiring of various devices.

6. The platform can be used for systematically teaching demonstration from shallow to deep, effectively arousing the learning interest of students and improving the learning effect.

7. The teaching training project based on the platform matched design enables students to comprehensively improve technical capabilities of system design, research and development programming, installation and debugging and the like on the basis of mastering knowledge, and can integrate the concept of occupational direction, innovate a teaching method and carry out training in groups on duty.

To sum up, compare with prior art, the utility model provides a pair of novel real platform of instructing of industrial network, its structural design science has integrated the PN and the DP communications facilities of common Siemens, can be according to the demand, and typical industrial network is found in a flexible way.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A novel industrial network training platform is characterized by comprising a vertically arranged rack (1);

a power module (2), a PLC module (3), a touch screen module (4), a distributed input and output module (5), a frequency converter module (6), a motor module (7) and a switch module (8) are hung on the front surface of the rack (1);

the upper part of the front surface of the frame (1) is provided with a linear guide rail (12) which is transversely distributed;

the PLC module (3) is arranged on the linear guide rail (12);

the power module (2) is hung on the upper part of the back of the frame (1);

a wiring terminal block module (9) is arranged on the back surface of the frame (1) and at a position corresponding to the distributed input and output module (5);

the wiring terminal block module (9) is connected with the distributed input and output module (5);

the rack (1) is a metal net-shaped plate, and insulating paint is sprayed on the outer surface of the rack (1);

the bottom of the frame (1) is fixedly connected with horizontally distributed supporting platforms (10);

four corners of the bottom of the supporting platform (10) are respectively provided with a universal wheel (11) with a locking mechanism;

the power supply module (2) is connected with the PLC module (3), the touch screen module (4), the distributed input and output module (5), the frequency converter module (6), the motor module (7), the switch module (8) and the wiring terminal block module (9) through power-on wires and is used for supplying working power for the modules;

the PLC module (3), the touch screen module (4), the distributed input and output module (5), the frequency converter module (6), the motor module (7), the switch module (8) and the wiring terminal block module (9) are connected with each other through a plurality of connecting cables (20) to achieve data communication.

2. The novel industrial network practical training platform as claimed in claim 1, wherein the power module (2) is connected with an external ac power supply, and an air switch is connected to a connection line between the power module (2) and the external ac power supply.

3. A novel industrial network practical training platform as claimed in claim 2, characterized in that the power supply module (2) adopts siemens S7-400PLC series sipop power supply unit for converting 380V ac power into 24V dc power.

4. A novel industrial network practical training platform as claimed in claim 1, wherein the switch module (8) is connected to the PLC module (3) and the touch screen module (4) respectively, and is used for PN bus networking.

5. The novel industrial network practical training platform as claimed in claim 1, wherein the touch screen module (4) is used for displaying and monitoring input signals and output signals of the PLC module (3).

6. The novel industrial network practical training platform as claimed in claim 1, wherein the touch screen module (4) has a PN bus communication function and is connected to the switch module (8) and the PLC module (3), and the touch screen module (4) is used to form a PN network together with the switch module (8) and the PLC module (3).

7. A novel industrial network practical training platform according to any one of claims 1 to 6, characterized in that the power supply module (2) is mounted on the back of the rack (1).

8. A novel industrial network practical training platform as claimed in any one of claims 1 to 6, characterized in that the frequency converter module (6) is connected with the motor module (7) for controlling the operation of the motor module (7);

the motor module (7) is a three-phase asynchronous motor;

the motor module (7) is arranged at the top of the front end of a supporting platform (10) fixed at the bottom of the frame (1).