CN107886821A - Towards the simulation test stand and its data communications method of PLC school duty rooms - Google Patents
Towards the simulation test stand and its data communications method of PLC school duty rooms Download PDFInfo
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- CN107886821A CN107886821A CN201711343995.1A CN201711343995A CN107886821A CN 107886821 A CN107886821 A CN 107886821A CN 201711343995 A CN201711343995 A CN 201711343995A CN 107886821 A CN107886821 A CN 107886821A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
- G09B23/186—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for digital electronics; for computers, e.g. microprocessors
Abstract
The present invention relates to a kind of simulation test stand and its data communications method towards PLC school duty rooms.Using the framework of HWIL simulation, teacher station system provides abundant industrial equipment simulation model, student can manipulate the device model of industrial control system by PLC and emulation configuration software, monitor and debug in real time the control dynamic of controlled device, so as to reach the real training purpose of simulation industrial control system, and the simulated effect of this method it is more life-like, closer to produce reality, can effectively motivate students' interest in learning, creativity.The present invention can provide the motor control that industry is common at present, automatic charging system control, the device models such as forming machine control, make the properer actual production of teaching practice, it is extremely advantageous for the PLC application powers of training student, the ability of engineering practice of training student.
Description
Technical field
The invention belongs to automated teaching application field, more specifically to a kind of towards the imitative of PLC school duty rooms
True testing stand and its data communications method.
Background technology
Programmable logic Controller (PLC) technique initially be substitute relay-contactor control technology and it is caused, with science and technology hair
Exhibition, this technology have developed into network between PLC and PLC via single logic control and controlled, and present PLC with
Communication Control between computer, it progressively penetrates into every field, and application is extremely extensive.In terms of educational applications, PLC
Have become the required course of the electric relevant speciality of industry science class universities and colleges, it is a set of efficient in order to consolidate the knowwhy that student is learned
PLC laboratory simulations method just seems very necessary and urgent.
PLC teaching experimental base devices now emerge in an endless stream, but it is most of there is cumbersome module, it is not only bulky and
And the function that can be realized is very single, although also there is some experimental benches to integrate more than ten experiment reluctantly, complexity
Circuit has also dampened the learning interest of PLC beginner；Only has controller for large scale industry experiment, without controlled device, student
Confirmatory programming operation can only be carried out, is connected without condition with peripheral advanced industrial equipment and carries out experiment；PLC it
Between independently of each other, it is difficult to communicating data；In addition, these Practical training equipment prices are high, in order to reduce cost, experimental bench uses for producer
Switch and LED etc. can not be emulated to the system of complexity, are limited only to infrastest, have impact on teaching come the scene of simulating
Intuitive and interest.The main reason for causing above-mentioned phenomenon be the PLC teaching experimental bases framework for lacking a kind of opening and
Effective data communications method.
The content of the invention
A kind of the shortcomings that it is an object of the invention to overcome prior art, there is provided new imitating towards PLC school duty rooms
True testing stand and its data communications method, to solve, existing PLC school duty rooms experiential function is single, is difficult to carry out complicated system
The technical problem of the analogue simulation experiment of system.
To achieve the above object, the technical scheme is that：A kind of simulation test stand towards PLC school duty rooms,
Including teaching station system and student station system, both are connected by total switch Ethernet；
The teaching station system includes：One industrial computer, teacher's PC, a server；
The server is used to storing and run the physical model of industrial complication system controlled device, M void of server-assignment
Intend control node, including 1 teacher's node and M-1 student's node, each control node correspond to specific port；It is described virtual
There is control node analog physical control station to perform functions of control program；
The industrial computer is connected by hardwire with the M-1 platform students PLC of the student station system, and industrial computer each inputs/and it is defeated
Going out signal can correspond with the input/output relay inside M-1 platform students PLC respectively；The industrial computer is used to gather M-1
Platform student PLC all inputoutput datas, it is monitoring interface program and M-1 platform students PLC on student's PC of student station
In logic control program between provide data transfer passage；
Teacher's PC is equipped with emulation configuration software；The emulation configuration software includes Logical Configuration software, and monitoring interface is soft
Part, and communication interface modules；The monitoring interface software is used for the physical model for designing controlled device, and shows controlled device
Control effect；The Logical Configuration software is used for the control logic for writing controlled device, realizes preset control function；
The server is mounted with data resettlement software with industrial computer, and the data resettlement software is used to realize each void of server
Intend the data resettlement between control node and industrial computer internal memory and share；
The student station system includes：M-1 student station, each student station are made up of a student PLC and student's PC, and two
Person is connected by minor exchange；
Student's PC is equipped with emulation configuration software；The emulation configuration software includes Logical Configuration software, and monitoring interface is soft
Part, and communication interface modules；The monitoring interface software is used for the physical model for designing controlled device, and shows controlled device
Control effect；The Logical Configuration software is used for the control logic for writing controlled device, realizes preset control function, and will
It is downloaded in student PLC and run.
In an embodiment of the present invention, the operation principle of the simulation test stand is first by the student PLC of student station and
Raw PC serial ports connects, and recycles emulation configuration software to build the simulation model of control system controlled device, and pass through
Simulation model and control configuration program are run on teacher's PC, student's PC, is emulated to reach under the conditions of half material object
Purpose.
In an embodiment of the present invention, the simulation model of the controlled device can be carried out by monitoring interface corresponding assembly
Modification, so as to realize that system control program carries out online modification and debugging.
Present invention also offers a kind of data communication based on the simulation test stand described above towards PLC school duty rooms
Method, comprise the following steps,
Step S1, the physical model data of controlled device is downloaded to server by teacher by the monitoring interface software of teacher's PC
In corresponding virtual controlling node；
Step S2, when student starts experiment, picture is tested by monitoring interface Software for Design on student's PC, and designed
Experiment picture on trigger the manipulation instruction of controlled device, manipulation instruction signal value is sent to corresponding virtual control on server
Node address processed；
Step S3, software is moved using data to move the corresponding manipulation instruction data in server on each virtual controlling node
To the input memory field of industrial computer；
Step S4, the manipulation instruction data of industrial computer are passed into corresponding student PLC by hardwire；
Step S5, the control program for the Logical Configuration programming controlled device that student passes through student's PC, and it is loaded into student PLC
Middle execution；
Step S6, the control output result after execution is passed to the industrial computer by student PLC by hardwire；
Step S7, software is moved by data to move the input and output value of industrial computer to virtual controlling node corresponding to server
In, the calculating of controlled device physical model is driven, realizes the execution of controlled device action；
Step S8, by the monitoring interface software of student's PC from virtual controlling node corresponding to server reading numerical values, and
Dynamically show the state of a control of controlled device；
Step S9, student judges whether experiment demand is completed by the current intelligence of monitoring interface, if reaching the demand of experiment, examination
Test end, if fall flat, continue to change student PLC control program, repeat step S5, S6, S7, S8 until
Reach experiment effects of demand, terminate experiment.
Compared to prior art, the invention has the advantages that：
1st, simulation test stand provided by the invention, using the framework of HWIL simulation, teacher station system provides abundant industry and set
Standby simulation model, student can be manipulated the device model of industrial control system by PLC and emulation configuration software, monitor and adjust in real time
The control dynamic of controlled device is tried, so as to reach the real training purpose of simulation industrial control system, and the simulated effect of this method
More life-like, closer produce reality, can effectively motivate students' interest in learning, creativity.For example, it can provide at present
The common motor control of industry, the device model such as automatic charging system control, forming machine control, make the properer reality of teaching practice
Border produces, extremely advantageous for the PLC application powers of training student, the ability of engineering practice of training student；
2nd, the communication means of simulation test stand provided by the invention, the data transfer transfer of software and industrial computer is moved using data
Effect so that testing stand framework has more flexibility and scalability.In the case where system software and the network architecture are constant, system
Middle various types of hardware, including PC, PLC, industrial computer etc. can not limit vendor source, and laboratory can independently choose, upgrade or more
Change, and the hardware unit of student station can also needing neatly to adjust, extend according to student's quantity and experimental teaching.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram of simulation test stand in invention.
Fig. 2 is the Data communication principle figure of simulation test stand in the present invention.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
A kind of simulation test stand towards PLC school duty rooms of the present invention, including teaching station system and student station system,
Both are connected by total switch Ethernet；
The teaching station system includes：One industrial computer, teacher's PC, a server；
The server is used to storing and run the physical model of industrial complication system controlled device, M void of server-assignment
Intend control node, including 1 teacher's node and M-1 student's node, each control node correspond to specific port；It is described virtual
There is control node analog physical control station to perform functions of control program；
The industrial computer is connected by hardwire with the M-1 platform students PLC of the student station system, and industrial computer each inputs/and it is defeated
Going out signal can correspond with the input/output relay inside M-1 platform students PLC respectively；The industrial computer is used to gather M-1
Platform student PLC all inputoutput datas, it is monitoring interface program and M-1 platform students PLC on student's PC of student station
In logic control program between provide data transfer passage；
Teacher's PC is equipped with emulation configuration software；The emulation configuration software includes Logical Configuration software, and monitoring interface is soft
Part, and communication interface modules；The monitoring interface software is used for the physical model for designing controlled device, and shows controlled device
Control effect；The Logical Configuration software is used for the control logic for writing controlled device, realizes preset control function；
The server is mounted with data resettlement software with industrial computer, and the data resettlement software is used to realize each void of server
Intend the data resettlement between control node and industrial computer internal memory and share；
The student station system includes：M-1 student station, each student station are made up of a student PLC and student's PC, and two
Person is connected by minor exchange；
Student's PC is equipped with emulation configuration software；The emulation configuration software includes Logical Configuration software, and monitoring interface is soft
Part, and communication interface modules；The monitoring interface software is used for the physical model for designing controlled device, and shows controlled device
Control effect；The Logical Configuration software is used for the control logic for writing controlled device, realizes preset control function, and will
It is downloaded in student PLC and run.
The operation principle of the simulation test stand is first to connect the student PLC of student station and student's PC serial ports,
Emulation configuration software is recycled to build the simulation model of control system controlled device, and by teacher's PC, student's PC
Upper operation simulation model and control configuration program, to reach the purpose emulated under the conditions of half material object.The controlled device
Simulation model can be modified by monitoring interface corresponding assembly, so as to realize system control program carry out online modification and
Debugging.
Present invention also offers a kind of data communication based on the simulation test stand described above towards PLC school duty rooms
Method, comprise the following steps,
Step S1, the physical model data of controlled device is downloaded to server by teacher by the monitoring interface software of teacher's PC
In corresponding virtual controlling node；
Step S2, when student starts experiment, picture is tested by monitoring interface Software for Design on student's PC, and designed
Experiment picture on trigger the manipulation instruction of controlled device, manipulation instruction signal value is sent to corresponding virtual control on server
Node address processed；
Step S3, software is moved using data to move the corresponding manipulation instruction data in server on each virtual controlling node
To the input memory field of industrial computer；
Step S4, the manipulation instruction data of industrial computer are passed into corresponding student PLC by hardwire；
Step S5, the control program for the Logical Configuration programming controlled device that student passes through student's PC, and it is loaded into student PLC
Middle execution；
Step S6, the control output result after execution is passed to the industrial computer by student PLC by hardwire；
Step S7, software is moved by data to move the input and output value of industrial computer to virtual controlling node corresponding to server
In, the calculating of controlled device physical model is driven, realizes the execution of controlled device action；
Step S8, by the monitoring interface software of student's PC from virtual controlling node corresponding to server reading numerical values, and
Dynamically show the state of a control of controlled device；
Step S9, student judges whether experiment demand is completed by the current intelligence of monitoring interface, if reaching the demand of experiment, examination
Test end, if fall flat, continue to change student PLC control program, repeat step S5, S6, S7, S8 until
Reach experiment effects of demand, terminate experiment.
It is below the specific implementation process of the present invention.
（One）, the present invention the simulation test stand towards PLC school duty rooms, the simulation test stand provided is using being based on
The framework of PLC HWIL simulation, as shown in figure 1, specific as follows：
1st, including teaching station system and student station system, both are connected by total switch Ethernet.
2nd, the teaching station system includes：One large-scale industrial computer, teacher's PC, a server.
（1）The server is mainly used to store and runs the physical model of industrial complication system controlled device, server
It is assigned with M virtual controlling node, including 1 teacher's node and M-1 student's node, the corresponding specific end of each control node
Mouthful；There is the virtual controlling node analog physical control station to perform functions of control program.
（2）The industrial computer is connected by hardwire with the M-1 platform small PLCs of student station system, and industrial computer each inputs/
Output signal can correspond with the input/output relay inside PLC respectively.The industrial computer is small-sized for gathering M-1 platforms
PLC all inputoutput datas, between the logic control program in the monitoring interface program and small PLC on student station PC
The passage of data transfer is provided.
（3）The server is mounted with data resettlement software with industrial computer, and the data resettlement software is mainly used in reality
Existing data resettlement between each virtual controlling node of server and industrial computer internal memory is with sharing.
3rd, the student station system includes：M-1 student station, each student station is by one group of PLC device and student's PC
Form, both are connected by minor exchange.
（1）Student's PC is respectively arranged with emulation configuration software with teacher's PC.
（2）The emulation configuration software mainly includes Logical Configuration software, monitoring interface software, and communication interface mould
Block；The monitoring interface software is used for the physical model for designing controlled device, and shows the control effect of controlled device；
（3）The Logical Configuration software is used for the control logic for writing controlled device, realizes specific control function, and by under it
It is loaded onto in small PLC and runs.
（Two）, the present invention the simulation test stand towards PLC school duty rooms：The work of the simulation test stand provided is former
Reason is first to connect the PLC of student station and PC serial ports, recycles emulation configuration software to build control system quilt
The simulation model of object is controlled, and by running simulation model and control configuration program on PC, to reach under the conditions of half is in kind
The purpose emulated.Further, the simulation model of controlled device can also be modified by monitoring interface corresponding assembly,
So as to realize that system control program carries out online modification and debugging.
（Three）, present invention also offers a kind of data based on the above-mentioned simulation test stand towards PLC school duty rooms to lead to
Letter method, as shown in Fig. 2 concrete principle is as follows：
1st, the physical model data of controlled device is downloaded to corresponding to server by teacher by teacher PC monitoring interface software
In virtual controlling node.
2nd, when student starts experiment, picture is tested by monitoring interface Software for Design on student PC, and designed
Test the manipulation instruction that controlled device is triggered on picture（Such as the start-up operation of certain equipment）, by manipulation instruction signal value send to
Corresponding virtual controlling node address on server；
3rd, the corresponding manipulation instruction data in server on each virtual controlling node are moved to work using data resettlement software
The input memory field of control machine；
4th, the manipulation instruction data of industrial computer are passed into corresponding small PLC by hardwire；
（The step of the above 2,3,4 is realized the monitored picture start stop operation data transfer on student PC to small PLC correspondence memory
In.）
5th, the control program for the Logical Configuration programming controlled device that student passes through student PC, and be loaded into small PLC and perform；
6th, the control output result after execution is passed to the industrial computer by small PLC by hardwire；
7th, move software by data to move the input and output value of industrial computer into virtual controlling node corresponding to server, drive
The calculating of dynamic controlled device physical model, realizes the execution of controlled device action；
8th, by student PC monitoring interface software from virtual controlling node corresponding to server reading numerical values, and dynamically show
Show the state of a control of controlled device；
9th, student judges whether experiment demand is completed by the current intelligence of monitoring interface, if reaching the demand of experiment, experiment knot
Beam, if fall flat, continue to change the control program of small PLC, repeat 5,6,7,8 until reaching experiment demand
Effect, terminate experiment.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (4)
- A kind of 1. simulation test stand towards PLC school duty rooms, it is characterised in that：Including teaching station system and student station system System, both are connected by total switch Ethernet；The teaching station system includes：One industrial computer, teacher's PC, a server；The server is used to storing and run the physical model of industrial complication system controlled device, M void of server-assignment Intend control node, including 1 teacher's node and M-1 student's node, each control node correspond to specific port；It is described virtual There is control node analog physical control station to perform functions of control program；The industrial computer is connected by hardwire with the M-1 platform students PLC of the student station system, and industrial computer each inputs/and it is defeated Going out signal can correspond with the input/output relay inside M-1 platform students PLC respectively；The industrial computer is used to gather M-1 Platform student PLC all inputoutput datas, it is monitoring interface program and M-1 platform students PLC on student's PC of student station In logic control program between provide data transfer passage；Teacher's PC is equipped with emulation configuration software；The emulation configuration software includes Logical Configuration software, and monitoring interface is soft Part, and communication interface modules；The monitoring interface software is used for the physical model for designing controlled device, and shows controlled device Control effect；The Logical Configuration software is used for the control logic for writing controlled device, realizes preset control function；The server is mounted with data resettlement software with industrial computer, and the data resettlement software is used to realize each void of server Intend the data resettlement between control node and industrial computer internal memory and share；The student station system includes：M-1 student station, each student station are made up of a student PLC and student's PC, and two Person is connected by minor exchange；Student's PC is equipped with emulation configuration software；The emulation configuration software includes Logical Configuration software, and monitoring interface is soft Part, and communication interface modules；The monitoring interface software is used for the physical model for designing controlled device, and shows controlled device Control effect；The Logical Configuration software is used for the control logic for writing controlled device, realizes preset control function, and will It is downloaded in student PLC and run.
- 2. the simulation test stand according to claim 1 towards PLC school duty rooms, it is characterised in that：The emulation examination The operation principle for testing platform is first to connect the student PLC of student station and student's PC serial ports, recycles emulation configuration software To build the simulation model of control system controlled device, and by running simulation model and control on teacher's PC, student's PC Configuration program processed, to reach the purpose emulated under the conditions of half material object.
- 3. the simulation test stand according to claim 2 towards PLC school duty rooms, it is characterised in that：Described controlled pair The simulation model of elephant can be modified by monitoring interface corresponding assembly, so as to realize that system control program carries out online modification And debugging.
- 4. a kind of data communications method based on any simulation test stands towards PLC school duty rooms of claim 1-3, It is characterized in that：Comprise the following steps,Step S1, the physical model data of controlled device is downloaded to server by teacher by the monitoring interface software of teacher's PC In corresponding virtual controlling node；Step S2, when student starts experiment, picture is tested by monitoring interface Software for Design on student's PC, and designed Experiment picture on trigger the manipulation instruction of controlled device, manipulation instruction signal value is sent to corresponding virtual control on server Node address processed；Step S3, software is moved using data to move the corresponding manipulation instruction data in server on each virtual controlling node To the input memory field of industrial computer；Step S4, the manipulation instruction data of industrial computer are passed into corresponding student PLC by hardwire；Step S5, the control program for the Logical Configuration programming controlled device that student passes through student's PC, and it is loaded into student PLC Middle execution；Step S6, the control output result after execution is passed to the industrial computer by student PLC by hardwire；Step S7, software is moved by data to move the input and output value of industrial computer to virtual controlling node corresponding to server In, the calculating of controlled device physical model is driven, realizes the execution of controlled device action；Step S8, by the monitoring interface software of student's PC from virtual controlling node corresponding to server reading numerical values, and Dynamically show the state of a control of controlled device；Step S9, student judges whether experiment demand is completed by the current intelligence of monitoring interface, if reaching the demand of experiment, examination Test end, if fall flat, continue to change student PLC control program, repeat step S5, S6, S7, S8 until Reach experiment effects of demand, terminate experiment.
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| CN109754683A (en) * | 2019-03-04 | 2019-05-14 | 中国矿业大学 | A kind of half full-scale investigation device of PLC towards classroom instruction |
| CN110688050A (en) * | 2019-09-17 | 2020-01-14 | 上海海洋大学 | Use method of touch screen |
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| CN110688050A (en) * | 2019-09-17 | 2020-01-14 | 上海海洋大学 | Use method of touch screen |
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| CN114596746A (en) * | 2022-02-24 | 2022-06-07 | 烽台科技（北京）有限公司 | Simulation education training system and learning method based on simulation education training system |
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| Publication number | Publication date |
|---|---|
| CN107886821B (en) | 2020-01-14 |
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