CN106873517B - Fieldbus control experiment training teaching platform - Google Patents
Fieldbus control experiment training teaching platform Download PDFInfo
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- CN106873517B CN106873517B CN201710250084.8A CN201710250084A CN106873517B CN 106873517 B CN106873517 B CN 106873517B CN 201710250084 A CN201710250084 A CN 201710250084A CN 106873517 B CN106873517 B CN 106873517B
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- 238000012549 training Methods 0.000 title claims abstract description 41
- 238000002474 experimental method Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 191
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims description 13
- 238000011017 operating method Methods 0.000 claims 1
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- 230000000694 effects Effects 0.000 description 4
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- 238000009434 installation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000008030 elimination Effects 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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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
- G09B9/00—Simulators for teaching or training purposes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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Abstract
The invention provides a field bus control experiment practical training teaching platform, which comprises a teaching platform body, wherein a Profibus-DP communication control system, a MODBUS communication control system, a CC-Link control communication system, a first variable frequency transmission module and a second variable frequency transmission module are respectively arranged on the teaching platform body, and the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link control communication system are electrically connected in sequence; the Profibus-DP communication control system is electrically connected with the first variable frequency transmission module; the MODBUS communication control system and the CC-Link communication control system are respectively and electrically connected with the second variable frequency transmission module, and the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system are respectively connected with a main control computer. The invention can effectively solve the problems of single teaching content, higher teaching cost and poor practice course of students in the existing field bus control teaching by adopting only one communication control system matched with software and hardware.
Description
Technical Field
The invention relates to the technical field of practical teaching practical training equipment, in particular to a field bus control experiment practical training teaching platform.
Background
The field bus is a network mainly used for digital communication between measuring and controlling machines in a factory, namely a field network, namely a network for digitizing communication among sensors, various operation terminals and controllers and communication among controllers. The digitization of the communication network makes time division, multiplexing and multipoint possible, realizes high performance, high reliability and maintenance simplicity of the equipment and saves wiring.
The signal transmission between the conventional control system of the field bus and the field devices is mainly connected by means of I/O connections, and the field devices are monitored in this way. However, the conventional control system often exposes the problems of incomplete bottom data and weak information integration capability, and cannot completely meet the requirement of an automatic system on the bottom data, and software and hardware of the system can only usually use one product for matching use. Therefore, it is difficult to meet the technical requirements of the generating enterprise using a field bus technology.
At present, the courses of the field bus control system are set up in all universities and colleges, but the traditional control system is adopted, only one bus control system is adopted, the teaching content is single, only one communication control system can be demonstrated, the practical teaching effect is poor, and the software and the hardware of the traditional control system can be used only in a matching way, so that the teaching cost is high. Accordingly, the prior art is still in need of improvement and development.
Accordingly, there is a need for improvement and development in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a field bus control experiment training teaching platform, which aims to solve the problems that the conventional field bus control teaching only adopts a communication control system which is matched with software and hardware for use, the teaching content is single, the teaching cost is high and the student practice course is poor.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a fieldbus control experimental training teaching platform, comprising:
a teaching platform body;
the Profibus-DP communication control system is respectively arranged on the teaching platform body and used for collecting and controlling the information of the third party equipment;
the MODBUS communication control system is used for data exchange and monitoring;
a CC-Link communication control system for supporting common mode communication and instant communication;
the first variable frequency transmission module;
the second variable frequency transmission module;
the Profibus-DP communication control system is electrically connected with the MODBUS communication control system, and the MODBUS communication control system is electrically connected with the CC-Link communication control system;
the Profibus-DP communication control system is electrically connected with the first variable frequency transmission module; the MODBUS communication control system and the CC-Link communication control system are respectively and electrically connected with the second variable frequency transmission module;
the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system are respectively connected with a main control computer.
The field bus control experiment training teaching platform, wherein, first variable frequency transmission module includes:
the system comprises a first frequency converter, a first frequency converter BOP panel, a Profibus-DP template and a first three-phase asynchronous motor;
the second variable frequency transmission module comprises:
the device comprises a second frequency converter, a frequency converter CC-Link communication connector and a second three-phase asynchronous motor.
The field bus control experiment training teaching platform, wherein the Profibus-DP communication control system specifically comprises:
the system comprises a first programmable controller, a DP master station communication module, a DP interface module, a digital quantity signal module, an analog quantity signal module, the Profibus-DP template and the first converter BOP panel;
the first programmable controller of the Profibus-DP communication control system is connected with the DP master station communication module and the DP interface module to respectively and independently monitor the digital quantity signal module and the analog quantity module; the first programmable controller is connected with the Profibus-DP template through the DP master station communication module and can independently monitor the first frequency converter; the first programmable controller can monitor the digital quantity signal module, the analog quantity module and the first frequency converter simultaneously through the connection of the DP master station communication module and the DP interface module and the Profibus-DP template.
The field bus control experiment training teaching platform, wherein the MODBUS communication control system specifically comprises:
the device comprises a first programmable controller, a second programmable controller, a third programmable controller, a 485ADP-MB communication module, a 485-BD communication signal board, a 485 communication module, a digital quantity collector, an analog quantity collector and a second frequency converter, wherein the first programmable controller is connected with the first frequency converter;
the second programmable controller of the MODBUS communication control system can respectively and independently monitor the digital quantity collector, the analog quantity collector, the third programmable controller and the second frequency converter through a 485-BD communication signal board; the second programmable controller can independently monitor the digital quantity collector, the analog quantity collector, the first programmable controller, the third programmable controller and the second frequency converter through a 485ADP-MB communication module respectively; the second programmable controller is connected with the 485ADP-MB communication signal board and the 485 communication module through the 485-BD communication module and is used for simultaneously monitoring the digital quantity collector, the analog quantity collector, the first programmable controller, the third programmable controller and the second frequency converter.
The field bus control experiment training teaching platform, wherein the CC-Link communication control system specifically comprises:
the system comprises a second programmable controller, a third programmable controller, a CC-Link master station module, a CC-Link slave station module, a remote digital I/O station, a remote analog I/O station, a frequency converter CC-Link communication connector and a second frequency converter;
the second programmable controller of the CC-Link communication control system is connected with the third programmable controller through the CC-Link master station module and the CC-Link slave station module to independently monitor the third programmable controller; the second programmable controller can independently monitor the remote digital I/O station through the CC-Link master station module; the second programmable controller can independently monitor the remote analog I/O station through the CC-Link master station module; the second programmable controller is connected with the frequency converter CC-Link communication connector through the CC-Link master station module and can independently monitor the second frequency converter; the second programmable controller can monitor the three programmable controllers, the remote digital I/O station, the remote analog I/O station and the second frequency converter simultaneously through the CC-Link master station module.
The field bus control experiment training teaching platform further comprises:
the analog quantity collector is used for collecting voltage and current signals and inputting the voltage and current signals into the upper computer;
and the digital quantity collector is used for automatically collecting electric quantity or non-electric quantity signals from the analog and digital tested units of the equipment to be tested and sending the signals to the upper computer.
The field bus control experiment training teaching platform further comprises: the sensor module is used for monitoring and controlling equipment temperature and humidity, and comprises a temperature sensor, a temperature and humidity sensor, a proximity switch, a photoelectric switch and an atmospheric pressure transmitter.
The field bus control experiment training teaching platform further comprises:
a display instruction area for display control/output;
an operation/execution operation instruction area for executing an operation;
the display instruction area is provided with a plurality of indicator lamps;
the operation instruction area is provided with a plurality of buttons.
The field bus control experiment training teaching platform further comprises:
the power module comprises a switching power supply and a leakage switch.
The field bus control experiment training teaching platform is characterized in that the master control computer controls the operation programs of the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system, and when any operation in the operation programs is wrong or fails, a warning is sent out and correct operation steps are prompted.
The beneficial effects are that: according to the field bus control experiment practical training teaching platform provided by the invention, the Profibus-DP communication control system, the MODBUS communication control system, the CC-Link communication control system, the first variable frequency transmission module and the second variable frequency transmission module are respectively arranged on the teaching platform, and the operation rules of the control systems are preset in the main control computer system, so that teaching knowledge points of the control systems can be covered on teaching contents, and the combination of knowledge learning and practical application is realized. The layout of the teaching platform is clear and visual, and each communication system can be independently operated or simultaneously operated, so that the flexibility, diversity and logic of the whole experimental training teaching platform are improved, and the teaching effect is enriched. When students do wiring exercise, the probability of wiring errors can be effectively reduced by combining the operation rules of the main control computer, meanwhile, the fault elimination is convenient, and a great amount of time is not required for carrying out line hunting and line survey.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the field bus control experimental training teaching platform.
Fig. 2 is a front view of the field bus control experimental training teaching platform of the invention.
Fig. 3 is a left side view of the fieldbus control experimental training teaching platform of the present invention.
Detailed Description
The invention provides a field bus control experiment training teaching platform. In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-2, fig. 1 is a schematic diagram of an overall structure of a fieldbus control experimental training teaching platform according to the present invention, and fig. 2 is a front view of the fieldbus control experimental training teaching platform according to the present invention. As shown in fig. 1-2, the fieldbus control experiment training teaching platform includes:
a teaching platform body 10;
the Profibus-DP communication control system is respectively arranged on the teaching platform body 10 and used for collecting and controlling the information of the third party equipment;
the MODBUS communication control system is used for data exchange and monitoring;
a CC-Link communication control system for supporting common mode communication and instant communication;
the first variable frequency transmission module;
the second variable frequency transmission module;
the Profibus-DP communication control system is electrically connected with the MODBUS communication control system, and the MODBUS communication control system is electrically connected with the CC-Link communication control system;
the Profibus-DP communication control system is electrically connected with the first variable frequency transmission module; the MODBUS communication control system and the CC-Link communication control system are respectively and electrically connected with the second variable frequency transmission module;
the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system are respectively connected with a main control computer.
Specifically, the Profibus-DP communication control system can perform DP field bus control with field devices such as a remote I/O module, a frequency converter and the like through a PLC (Programmable Logic Controller, a programmable logic controller), so that the acquisition and control of the information of the third party device are realized, and the distributed digital and field network of the device can be controlled; the MODBUS communication control system is a system capable of realizing communication by adopting PLCs and field devices of different manufacturers, is widely applied in the aspects of data exchange, monitoring and the like, is an excellent network protocol and is applied by a plurality of manufacturers; an entire layer network of the CC-Link communication control system can be composed of 1 master station and 64 slave stations. The master station in the network is acted by a PLC, and the slave stations can be remote I/O modules, special function modules, local stations with a CPU and the PLC, a man-machine interface, a frequency converter, various measuring instruments, field instrument devices such as valves and the like. In addition, the CC-Link communication control system can realize the connection from the CC-Link to the AS-I, and meanwhile, the CC-Link communication control system has high data transmission speed which can reach 10 Mb/s at most, and the bottom communication protocol of the CC-Link communication control system conforms to RS 485. In general, the CC-Link communication control system mainly adopts a broadcast-poll mode to perform communication, but also supports instant communication between the master station and the local station as well as between the master station and the intelligent equipment station.
Therefore, the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system are embedded on the experimental training teaching platform and are respectively connected with the main control computer, and the communication systems can be independently operated or simultaneously operated, so that electromechanical integrated teaching is realized.
Meanwhile, as the wiring terminals of the Profibus-DP communication control system, the MODBUS communication control system, the CC-Link communication control system, the power module and the sensor module are respectively communicated with the corresponding pins in the banana socket 11, students can perform wiring operation according to the performed experiments. When a certain communication system control is needed, the banana socket 11 corresponding to the communication system is only required to be connected with a communication cable (not shown in the figure), and the operation replaces the traditional teaching practice that the wiring terminals on the terminal strip are required to be screwed down by using screws so as to realize electric connection, so that the practice operation in the teaching is simpler, more convenient and quicker. Therefore, not only is the practical ability and the observation ability of students exercised, but also the familiarity of the students to the experimental training teaching platform is enhanced, and the learning interest of the students is stimulated.
Specifically, the banana sockets 11 are all used for indicating the interface sources, so that the exercise operation in teaching is simple and easy to understand, and students can master and learn conveniently. In order to facilitate distinguishing and improve safety and avoid the situation that a module is damaged due to wiring errors, in the embodiment of the invention, the banana sockets 11 with various functions are further divided into colors and sizes. For example: the power supply anode uses a red banana socket with the radius of 4mm, the power supply cathode uses a black banana socket with the radius of 4mm, and the signal terminal adopts a blue-green-yellow banana socket with the radius of 2 mm. In addition, each component of the invention is embedded on the teaching platform body 10, has compact and beautiful appearance, small volume and high flexibility, and effectively solves the problems of messy overall layout, poor safety and poor reliability caused by adopting suspension type arrangement in the prior art.
Further, as shown in fig. 1-2, the first variable frequency transmission module includes: a first frequency converter 70, a first frequency converter BOP panel, a Profibus-DP template 35, and a first three-phase asynchronous motor (not shown); the second variable frequency transmission module comprises: a second frequency converter 80, a frequency converter CC-Link communication connector 45 and a second three-phase asynchronous motor (not shown). The first frequency converter 70 and the second frequency converter 80 are respectively embedded in the right and left sides of the front face of the teaching platform body 10, and the lower side wall of the teaching platform body 10 is provided with a variable frequency motor aviation socket 16 and a variable frequency motor aviation socket 18. The first frequency converter 70 is connected with the first three-phase asynchronous motor through the variable frequency motor aviation socket 16, and the second frequency converter 80 is connected with the second three-phase asynchronous motor through the variable frequency motor aviation socket 18. Preferably, the first frequency converter 70 is a siemens frequency converter, the second frequency converter 80 is a mitsubishi frequency converter, and the frequency converter CC-Link communication connector 45 is a mitsubishi frequency converter CC-Link communication connector.
Variable frequency drives are a technique for controlling an ac motor by varying the frequency of the input power. Devices employing variable frequency drives are commonly referred to as frequency converters. Frequency converters are generally divided into two parts: a rectifying unit and an inverter. The rectifying unit converts alternating current into direct current, the inverter converts the direct current into square wave with required frequency through the electronic switch, and the square wave is overlapped for a plurality of times to form approximate sine alternating current, so that the motor is driven.
Further, as shown in fig. 1-2, the Profibus-DP communication control system specifically includes:
the device comprises a first programmable controller 30, a DP master station communication module 31, a DP interface module 34, a digital quantity signal module 33, an analog quantity signal module 32, a Profibus-DP template 35 and the first frequency converter BOP panel. The first programmable controller 30 is configured to store a program, execute various user instructions according to control requirements through control signals, and the analog quantity signal module 32 is configured to operate and convert a corresponding analog quantity sensor into a digital quantity; the digital quantity signal module 33 is used for inputting/outputting a corresponding switching quantity signal. The DP master station communication module 31, the DP interface module 34 and the Profibus-DP template 35 are respectively connected with corresponding interfaces by DP communication lines (not shown in the figure), so as to realize that the Profibus-DP communication control system monitors the first frequency converter 70, the digital signal module 33 and the analog signal module 32.
In specific implementation, the first programmable controller 30 of the Profibus-DP communication control system is connected to the digital quantity signal module 33 and the analog quantity module 32 respectively and separately through the DP master station communication module 31 and the DP interface module 34; the first programmable controller 30 is connected to the individual monitoring first frequency converter 70 via the DP master station communication module 34 and the Profibus-DP template 35; the first programmable controller 30 is connected to the Profibus-DP template 35 through the DP master station communication module 31 and the DP interface module 34 to monitor the digital quantity signal module 33, the analog quantity module 32 and the first frequency converter 70 simultaneously.
Further, as shown in fig. 1-2, the MODBUS communication control system specifically includes: the first programmable controller 30, the second programmable controller 40, the third programmable controller 46, the 485ADP-MB communication module 51, the 485-BD communication signal board 50, the 485-BD communication signal board 52, the 485 communication module 55, the digital quantity collector 53, the analog quantity collector 54 and the second frequency converter 80. The analog quantity collector 54 is used for collecting voltage and current signals and inputting the voltage and current signals into the upper computer; the digital quantity collector 53 is used for automatically collecting electric quantity or non-electric quantity signals from analog and digital tested units of the device to be tested and sending the signals to the upper computer. The second programmable controller 40 is configured to store a program, and execute various user instructions according to control requirements through control signals. The digital quantity collector 53 is used for inputting/outputting corresponding switching value signals, and the analog quantity collector 54 is used for calculating and converting corresponding analog quantity sensors into digital quantities. The 485-ADP-MB communication signal board 51, the 485-BD communication signal board 50, the digital quantity collector 53, the analog quantity collector 54 and the 485 communication module 55 for communication transmission are respectively connected with corresponding interfaces by using RS485 communication lines (not labeled in the figure), so that the second frequency converter 80, the digital quantity collector 53 and the analog quantity collector 54 are monitored by a MODBUS communication control system.
In specific implementation, the second programmable controller 40 of the MODBUS communication control system monitors the digital quantity collector 53, the analog quantity collector 54, the third programmable controller 46 and the second frequency converter 80 through the 485-BD communication signal board 50 respectively and individually; the second programmable controller 40 monitors the digital quantity collector 53, the analog quantity collector 54, the first programmable controller 30, the third programmable controller 46 and the second frequency converter 80 through the 485ADP-MB communication module 51, respectively; the second programmable controller 40 is connected to the monitoring digital quantity collector 53, analog quantity collector 54, first programmable controller 30, third programmable controller 46 and second frequency converter 80 through 485ADP-MB communication module 51, 485-BD communication signal board 52 and 485 communication module 55.
Further, as shown in fig. 1-2, the CC-Link communication control system specifically includes: the second programmable controller 40, the third programmable controller 46, the CC-Link master module 41, the CC-Link slave module 42, the remote digital I/O station 44, the remote analog I/O station 43, the frequency converter CC-Link communication connector 45, and the second frequency converter 80. The third programmable controller 46 is configured to store a program, and execute various user instructions according to control requirements via control signals. The remote analog I/O station 43 is used to operate and convert the corresponding analog sensor to digital. The remote digital I/O station 44 is used for input and output of corresponding switching value signals. The CC-Link master station module 41, the CC-Link slave station module 42, the remote analog I/O station 43, the remote digital I/O station 44, and the frequency converter CC-Link communication connector 45 are respectively connected with corresponding interfaces by using CC-Link communication dedicated cables (not labeled in the drawing), so as to implement the monitoring of the second frequency converter 80, the remote digital I/O station 44, and the remote analog I/O station 43 by using a CC-Link communication control system.
In specific implementation, the second programmable controller 40 of the CC-Link communication control system is connected with the third programmable controller 46 through the CC-Link master station module 41 and the CC-Link slave station module 42 to individually monitor the third programmable controller 46; the second programmable controller 40 can monitor the remote digital quantity I/O station 43 independently through the CC-Link master station module 41; the second programmable controller 40 is connected with the frequency converter CC-Link communication connector 45 through the CC-Link master station module 41 to independently monitor the second frequency converter 80; the second programmable controller 40 simultaneously monitors the third programmable controller 46, the remote digital I/O station 44, the remote analog I/O station 43, and the second frequency converter 80 through the CC-Link master station module 41.
Further, the master control computer controls the operation programs of the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system, and when any one of the operation programs is in error or fault, a warning is sent out and correct operation steps are prompted.
When the operation of any one of the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system is wrong or fails, a warning is sent out and correct operation steps are prompted. Therefore, teachers can strictly practice teaching according to a plan when arranging exercise projects, students can rotate equipment to practice operation, the skill operation capability of the students is improved, and meanwhile fault removal is facilitated.
Preferably, the programmable controller 30 is se:Sup>A Siemens S7-1200 PC, the programmable controller 40 and the programmable controller 46 are both Mitsubishi FX3U-16MT/ES-A PC, the frequency converter 70 is se:Sup>A Siemens MM420 frequency converter, the frequency converter 80 is se:Sup>A Mitsubishi FR-E720S-0.4K-CHT frequency converter, the CC-ink Master station module 41 is FX3U-16 CC-M, the CC-ink Slave station module 42 is FX3U-64CC, the remote analog I/O station 43 is AJ65SBT-64AD, the remote digital I/O station 44 is AJ65SBTB1-16DT, the frequency converter CC-ink communication connector 45 is FR-A7NC E kit, the digital signal module 33 is SM323 (8 DI/8D 0), the analog signal module SM32 is 334 (4/2A 0), the remote analog I/O station 43 is AJ65SBT-64AD, the remote digital I/O station 44 is AJ65SBTB1-16DT, the digital I/O station 45 is FR-A7NC E kit, the digital signal module 33 is SM323 (8 DI/8D 0), and the analog signal module 32 is AI/2A0, the interface 34 is se:Sup>A Profibus 0 DP 1-DP 0 template 6-DP 1-DP 0. The invention selects the well-known large-brand production line industrial parts at home and abroad, can highly simulate the operation rules of the enterprise production line, is convenient for students to learn and understand the workflow on the actual working post, and enhances the practicability, effectiveness and stability of the learning skills of the students.
Further, as shown in fig. 1-2, the fieldbus control experiment training teaching platform further includes: the display control/output device comprises a display instruction area for display control/output, an operation/execution operation instruction area for executing operation and a power module. Wherein the display instruction area is provided with a plurality of indicator lamps 13, and the operation instruction area is provided with a plurality of buttons 14. The power module includes a switching power supply (not shown) and a leakage switch 60. Preferably, the switching power supply shown is a 24V switching power supply. The electric leakage switch 60 is arranged on the side wall of the teaching platform body 10, and the 24-switch power supply is arranged inside the teaching platform body.
Further, as shown in fig. 1, a power socket 17 is further provided on a side wall of the teaching platform body 10, for connecting with an external power supply for supplying power to the fieldbus control experiment training teaching platform according to the present invention. In a specific embodiment, the teaching platform body 10 is further provided with 6 boat-shaped switches 15, preferably, the 1 st to 3 rd from the left are 220V power supply control, the 4 th to 6 th from the left are 24V power supply control, and are respectively used for performing power supply control on the CC-Link communication control system, the Profibus-DP communication control system and the MODBUS communication control system, that is, each communication control system is controlled by a 220V power supply and a 24V power supply, and each switch can be independently powered on and powered off, so that the safety and reliability of electricity consumption are improved.
Further, as shown in fig. 3, the fieldbus control experiment training teaching platform further includes: the sensor module for monitoring and controlling equipment humiture comprises a temperature sensor 91, a proximity switch 93, a photoelectric switch 94, a humiture sensor 90 and an atmospheric pressure transmitter 92. The setting of various sensors can monitor environmental parameters such as temperature, humidity and the like of equipment in real time, so that students can more comprehensively know various types of sensors and master related theoretical knowledge.
In summary, the invention can visually compare and observe through the function demonstration of each communication control system, is convenient for students to understand and apply theoretical knowledge, and has clear, reasonable and visual layout, and the invention is used for monitoring the frequency converter, the digital module and the analog module through the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system. In addition, communication systems are divided, and each communication system can operate independently or simultaneously. Therefore, not only is the rich teaching effect achieved, but also the flexibility, diversity and logic of the whole experimental training teaching platform are improved, students can visually compare and observe when wiring, and thinking is kept clear, so that the probability of wiring errors is effectively reduced, and due to the operation program and the error correction program preset by the main control computer, faults are conveniently removed, and a great amount of time is not required for line hunting and survey. And because the teaching platform body 10 is built by the integrated aluminum alloy section bar and the stainless steel panel 12, the field bus control experiment training teaching platform has smaller volume, can be widely applied to desktop teaching, and reduces the teaching cost. The teaching platform body 10 is L-shaped, and is provided with the inclined installation surface leakage switch for installing each module, so that the installation area and the module installation quantity can be increased, the volume of the teaching platform body 10 is reduced, and the occupied space area is saved.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present teachings and concepts, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a real standard teaching platform of field bus control experiment which characterized in that includes:
a teaching platform body;
the Profibus-DP communication control system is respectively arranged on the teaching platform body and used for collecting and controlling the information of the third party equipment;
the MODBUS communication control system is used for data exchange and monitoring;
a CC-Link communication control system for supporting common mode communication and instant communication;
the first variable frequency transmission module;
the second variable frequency transmission module;
the Profibus-DP communication control system is electrically connected with the MODBUS communication control system, and the MODBUS communication control system is electrically connected with the CC-Link communication control system;
the Profibus-DP communication control system is electrically connected with the first variable frequency transmission module; the MODBUS communication control system and the CC-Link communication control system are respectively and electrically connected with the second variable frequency transmission module;
the Profibus-DP communication control system, the MODBUS communication control system and the CC-Link communication control system are respectively connected with a main control computer;
an entire layer network of the CC-Link communication control system consists of 1 master station and 64 slave stations.
2. The fieldbus control experiment training teaching platform of claim 1 wherein the first variable frequency drive module comprises:
the system comprises a first frequency converter, a first frequency converter BOP panel, a Profibus-DP template and a first three-phase asynchronous motor;
the second variable frequency transmission module comprises:
the device comprises a second frequency converter, a frequency converter CC-Link communication connector and a second three-phase asynchronous motor.
3. The fieldbus control experiment training teaching platform of claim 2, wherein the Profibus-DP communication control system specifically comprises:
the system comprises a first programmable controller, a DP master station communication module, a DP interface module, a digital quantity signal module, an analog quantity signal module, the Profibus-DP template and the first converter BOP panel;
the first programmable controller of the Profibus-DP communication control system is connected with the DP master station communication module and the DP interface module to respectively and independently monitor the digital quantity signal module and the analog quantity module; the first programmable controller is connected with the Profibus-DP template through the DP master station communication module and can independently monitor the first frequency converter; the first programmable controller can monitor the digital quantity signal module, the analog quantity module and the first frequency converter simultaneously through the connection of the DP master station communication module and the DP interface module and the Profibus-DP template.
4. The fieldbus control experiment training teaching platform of claim 2 wherein the MODBUS communication control system specifically comprises:
the device comprises a first programmable controller, a second programmable controller, a third programmable controller, a 485ADP-MB communication module, a 485-BD communication signal board, a 485 communication module, a digital quantity collector, an analog quantity collector and a second frequency converter, wherein the first programmable controller is connected with the first frequency converter;
the second programmable controller of the MODBUS communication control system can respectively and independently monitor the digital quantity collector, the analog quantity collector, the third programmable controller and the second frequency converter through a 485-BD communication signal board; the second programmable controller can independently monitor the digital quantity collector, the analog quantity collector, the first programmable controller, the third programmable controller and the second frequency converter through a 485ADP-MB communication module respectively; the second programmable controller is connected with the 485ADP-MB communication signal board and the 485 communication module through the 485-BD communication module and is used for simultaneously monitoring the digital quantity collector, the analog quantity collector, the first programmable controller, the third programmable controller and the second frequency converter.
5. The fieldbus control experiment training teaching platform of claim 2 wherein the CC-Link communication control system specifically comprises:
the system comprises a second programmable controller, a third programmable controller, a CC-Link master station module, a CC-Link slave station module, a remote digital I/O station, a remote analog I/O station, a frequency converter CC-Link communication connector and a second frequency converter;
the second programmable controller of the CC-Link communication control system is connected with the third programmable controller through the CC-Link master station module and the CC-Link slave station module to independently monitor the third programmable controller; the second programmable controller can independently monitor the remote digital I/O station through the CC-Link master station module; the second programmable controller can independently monitor the remote analog I/O station through the CC-Link master station module; the second programmable controller is connected with the frequency converter CC-Link communication connector through the CC-Link master station module and can independently monitor the second frequency converter; the second programmable controller can monitor the three programmable controllers, the remote digital I/O station, the remote analog I/O station and the second frequency converter simultaneously through the CC-Link master station module.
6. The field bus control experimental training teaching platform according to claim 4, wherein the analog quantity collector is used for collecting voltage and current signals and inputting the voltage and current signals into the upper computer; the digital quantity collector is used for automatically collecting electric quantity or non-electric quantity signals from analog and digital tested units of the equipment to be tested and sending the signals to the upper computer.
7. The fieldbus control experimental training teaching platform of claim 1, further comprising: the sensor module is used for monitoring and controlling equipment temperature and humidity, and comprises a temperature sensor, a temperature and humidity sensor, a proximity switch, a photoelectric switch and an atmospheric pressure transmitter.
8. The fieldbus control experimental training teaching platform of claim 1, further comprising:
a display instruction area for display control/output;
an operation/execution operation instruction area for executing an operation;
the display instruction area is provided with a plurality of indicator lamps;
the operation instruction area is provided with a plurality of buttons.
9. The fieldbus control experimental training teaching platform of claim 1, further comprising:
the power module comprises a switching power supply and a leakage switch.
10. The fieldbus control experiment training platform of claim 1 wherein the master control computer controls the operating procedures of the Profibus-DP communication control system, MODBUS communication control system, CC-Link communication control system, and when any one of them is in error or failure, a warning is issued and the correct operating steps are prompted.
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| CN108932901A (en) * | 2018-08-15 | 2018-12-04 | 韩小兵 | Electrician's integrating skills real training examines platform |
| CN111785110A (en) * | 2020-07-20 | 2020-10-16 | 徐州市广联科技有限公司 | Low-voltage electrician examination system and method |
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