CN204204291U - PLC control system experimental provision is used in teaching - Google Patents
PLC control system experimental provision is used in teaching Download PDFInfo
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- CN204204291U CN204204291U CN201420676760.XU CN201420676760U CN204204291U CN 204204291 U CN204204291 U CN 204204291U CN 201420676760 U CN201420676760 U CN 201420676760U CN 204204291 U CN204204291 U CN 204204291U
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Abstract
The utility model relates to a kind of teaching PLC control system experimental provision, the test panel of this experimental provision is provided with experiment apparatus, travel switch in experiment apparatus, Displaying Meter and pilot lamp are located at the top of test panel, PLC, expansion module, connection terminal, auxiliary reclay, first, two air switches, solid-state relay, A.C. contactor and power supply are located at the middle part of test panel, button and PC interface are located at the bottom of test panel, test panel is also provided with the recessed wire casing of N bar, N bar wire casing is distributed in around each experiment apparatus, and be interconnected between N bar wire casing, the wire of the wiring pin of connection terminal bottom surface panel back is by experiment connected with the respective pin of PLC and expansion module, the wiring pin of the PC interface bottom surface by experiment wire of panel back is connected with the communication pin of PLC, the utility model can imitate real system to the life, thus improves the ability of practice of starting of student.
Description
(1), technical field: the utility model relates to a kind of PLC control system experimental provision, particularly
PLC control system experimental provision is used in a kind of teaching.
(2), background technology: at present, PLC course has become the very strong specialized core course of a practicality of electrical engineering class in engineering and polytechnic universities, automation class and electromechanical integration class specialty, but most colleges and universities are still based on books teaching, although some universities and colleges adopt simulation software to carry out aided education, certain effect is had to the learning interest improving student, but emulation and actual conditions differ greatly, particularly once relate to production reality, student often has no way of doing it, and does not reach the ability improving student and start to put into practice at all.
At present, the control system being applied to PLC teaching has following several form: one, only configure PLC main frame, carry out the running status of determining program with LED display lamp, this instructional mode student can only carry out simple authentication to the program of writing, and does not have condition to carry out connection and the control of peripherals; Two, small PLC experimental box, choose the controlled device of some classics, test panel simulates these controlled devices with devices such as LED display lamp and buttons, this mode draws many jacks outward at experimental box, student only need connect wire by the mode of grafting, this has little effect concerning the practical competence improving student, is also not easy to the understanding of student to actual conditions; Three, object in kind, utilize object in kind to build PLC control system training platform, student experiences directly perceived, and teaching efficiency is better, but this object in kind is not only expensive, and usually volume is comparatively large, and a lot of school is difficult to bear.
(3), utility model content:
The technical problems to be solved in the utility model is: provide a kind of teaching PLC control system experimental provision,
This experimental provision can imitate real system to the life, thus improves the ability of practice of starting of student, and its structure is simple, easy to use.
The technical solution of the utility model:
PLC control system experimental provision is used in a kind of teaching, and containing test panel, test panel is provided with experiment apparatus, experiment apparatus contains PLC, expansion module, pilot lamp, button, power supply, travel switch, Displaying Meter, connection terminal, auxiliary reclay, first air switch, second air switch, solid-state relay and A.C. contactor, travel switch, Displaying Meter and pilot lamp are located at the top of test panel, PLC, expansion module, connection terminal, auxiliary reclay, first air switch, second air switch, solid-state relay, A.C. contactor and power supply are located at the middle part of test panel, button is located at the bottom of test panel, test panel is also provided with the recessed wire casing of N bar, N bar wire casing is distributed in around each experiment apparatus, and be interconnected between N bar wire casing, the connection wire between each experiment apparatus can be placed in wire casing, the wire of the wiring pin of connection terminal bottom surface panel back is by experiment connected with the respective pin of PLC and expansion module, and connection terminal is that PLC and the wiring between expansion module and other experiment apparatus are provided convenience.
also containing PC interface in experiment apparatus, PC interface is located at the bottom of test panel, the wiring pin of the PC interface bottom surface by experiment wire of panel back is connected with the communication pin of PLC, PC interface 16 can connect mobile PC, mobile PC and multiple experimental provision communication can be realized, also can realize the communication between multiple experimental provision.
PLC, expansion module, connection terminal, auxiliary reclay, the first air switch, the second air switch and A.C. contactor by guide rails assembling in test panel.
Displaying Meter contains reometer and voltage table, for the electric current in experiments of measuring circuit and voltage.
Connection terminal contains upper connecting terminal and lower connecting terminal, upper connecting terminal and lower connecting terminal lay respectively at PLC above and below, expansion module is positioned at the side of PLC.
The model of PLC is: CPU222PLC, and the model of expansion module is: EM223 or EM235.
When using this teaching PLC control system experimental provision to test, the operation of several aspect can be pressed:
1, design con-trol scheme;
2, select equipment needed thereby and wire, comprise digital quantity expansion module and analog quantity spread module;
3, connect corresponding equipment, during connection, wire will be arranged in wire casing;
4, hardware circuit is checked with multimeter;
5, I/O address distribution is carried out;
6, control program is write;
7, debugging and working procedure record experimental result;
8, after experiment or real training complete, the wire that dismounting connects also is placed in corresponding tool box.
Student is in experimentation, according to industry spot actual design control overflow, on purpose write I/O address allocation table, and carry out PLC external hardware circuit design on this basis and be connected and the writing of PLC program, thus reach the ability improving student and start to put into practice.
The beneficial effects of the utility model:
1. the utility model can form a small-sized industry control unit, by the reconfiguration of circuit, the expansion of module
The external simulation that can realize multiple production and automatic control process of exhibition and equipment, intactly can reproduce industry spot, and the PLC between multiple experimental provision can also be networked, and has higher dirigibility and copying, completely industry spot can be reproduced realistically.The utility model can provide the Practice Platform of PLC technology for student, drastically increases the teaching efficiency of PLC practice, improves the ability that student starts to put into practice, and platform structure is simple, easy to use, extendability strong, be easy to promote.
(4), accompanying drawing illustrates:
Fig. 1 is the structural representation of teaching PLC control system experimental provision;
Fig. 2 is the circuit diagram of design when adopting teaching PLC control system experimental provision to test;
(5), embodiment:
See in Fig. 1, figure, teaching PLC control system experimental provision contains test panel, and test panel is provided with experiment apparatus, and experiment apparatus contains PLC 8, expansion module 9, 10, pilot lamp 3, button 13, power supply 4, travel switch 1, Displaying Meter 2, connection terminal 6, auxiliary reclay 7, first air switch 5, second air switch 17, solid-state relay 11 and A.C. contactor 12, travel switch 1, Displaying Meter 2 and pilot lamp 3 are located at the top of test panel, PLC 8, expansion module 9, 10, connection terminal 6, auxiliary reclay 7, first air switch 5, second air switch 17, solid-state relay 11, A.C. contactor 12 and power supply 4 are located at the middle part of test panel, button 13 is located at the bottom of test panel, test panel is also provided with 8 recessed wire casings 15, article 7, wire casing 15 is distributed in around each experiment apparatus, and be interconnected between 8 wire casings, can place the connection wire between each experiment apparatus in wire casing 15, the wiring pin of connection terminal 6 bottom surface is the wire of panel back and PLC 8 and expansion module 9 by experiment, the respective pin of 10 connects, and connection terminal 6 is PLC 8 and expansion module 9, wiring between 10 and other experiment apparatus is provided convenience.
also containing PC interface 16 in experiment apparatus, PC interface 16 is located at the bottom of test panel, the wiring pin of the PC interface 16 bottom surface by experiment wire of panel back is connected with the communication pin of PLC 8, PC interface 16 connects mobile PC by PPI communication cable, mobile PC and multiple experimental provision communication can be realized, also can realize the communication between multiple experimental provision.
PLC 8, expansion module 9,10, connection terminal 6, auxiliary reclay 7, first air switch 5, second air switch 17 and A.C. contactor 12 be arranged in test panel by guide rail 14.
Displaying Meter 2 contains reometer and voltage table, for the electric current in experiments of measuring circuit and voltage.
Connection terminal 6 containing upper connecting terminal and lower connecting terminal, upper connecting terminal and lower connecting terminal lay respectively at PLC 8 above and below, expansion module 9,10 is positioned at the side of PLC 8.
The model of PLC 8 is: CPU222PLC, and the model of expansion module 9 is: EM223, and the model of expansion module 10 is: EM235.Expansion module 9,10 is digital quantity expansion module, can not meet when control system requires expand at the I/O terminal of PLC 8.
When using this teaching PLC control system experimental provision to test, the operation of several aspect can be pressed:
1, design con-trol scheme;
2, select equipment needed thereby and wire, comprise digital quantity expansion module and analog quantity spread module;
3, connect corresponding equipment, during connection, wire will be arranged in wire casing;
4, hardware circuit is checked with multimeter;
5, I/O address distribution is carried out;
6, control program is write;
7, debugging and working procedure record experimental result;
8, after experiment or real training complete, the wire that dismounting connects also is placed in corresponding tool box.
Fig. 2 is the example of a circuit diagram of design when adopting this experimental provision to test, in figure, L1 and N provides AC power for whole control circuit, B1 provides 24V direct supply for whole control loop, input signal one ends such as the switch in control system, button SB2-SB7 and travel switch PS1-PS2 are connected on the input terminal of CPU222 or EM223, and the other end is connected on the positive terminal of direct supply B1; Auxiliary reclay coil K1-K5 one end is connected with the lead-out terminal of CPU222, and the other end is connected with the negative pole end of B1, and the normally opened contact of auxiliary reclay is serially connected in the circuit of pilot lamp H1-H4; If when the I/O point of CPU222 can not meet control system requirement, adopt EM223 digital quantity expansion module; If when applying to sensor in control system, adopt EM235 analog quantity spread module.
Claims (6)
1. PLC control system experimental provision is used in a teaching, containing test panel, test panel is provided with experiment apparatus, experiment apparatus contains PLC, expansion module, pilot lamp, button and power supply, it is characterized in that: experiment apparatus is also containing travel switch, Displaying Meter, connection terminal, auxiliary reclay, first air switch, second air switch, solid-state relay and A.C. contactor, travel switch, Displaying Meter and pilot lamp are located at the top of test panel, PLC, expansion module, connection terminal, auxiliary reclay, first air switch, second air switch, solid-state relay, A.C. contactor and power supply are located at the middle part of test panel, button is located at the bottom of test panel, test panel is also provided with the recessed wire casing of N bar, N bar wire casing is distributed in around each experiment apparatus, and be interconnected between N bar wire casing, the wire of the wiring pin of connection terminal bottom surface panel back is by experiment connected with the respective pin of PLC and expansion module.
2.
teaching PLC control system experimental provision according to claim 1, it is characterized in that: also containing PC interface in described experiment apparatus, PC interface is located at the bottom of test panel, and the wiring pin of the PC interface bottom surface by experiment wire of panel back is connected with the communication pin of PLC.
3. teaching PLC control system experimental provision according to claim 1, is characterized in that: described PLC, expansion module, connection terminal, auxiliary reclay, the first air switch, the second air switch and A.C. contactor by guide rails assembling in test panel.
4. teaching PLC control system experimental provision according to claim 1, is characterized in that: described Displaying Meter contains reometer and voltage table.
5. teaching PLC control system experimental provision according to claim 1, it is characterized in that: described connection terminal contains upper connecting terminal and lower connecting terminal, upper connecting terminal and lower connecting terminal lay respectively at PLC above and below, expansion module is positioned at the side of PLC.
6. teaching PLC control system experimental provision according to claim 1, it is characterized in that: the model of described PLC is: CPU222PLC, the model of expansion module is: EM223 or EM235.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676760.XU CN204204291U (en) | 2014-11-13 | 2014-11-13 | PLC control system experimental provision is used in teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676760.XU CN204204291U (en) | 2014-11-13 | 2014-11-13 | PLC control system experimental provision is used in teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204291U true CN204204291U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420676760.XU Expired - Fee Related CN204204291U (en) | 2014-11-13 | 2014-11-13 | PLC control system experimental provision is used in teaching |
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| CN (1) | CN204204291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814680A (en) * | 2015-11-30 | 2017-06-09 | 江苏核电有限公司 | A kind of PLC functional verifications device |
-
2014
- 2014-11-13 CN CN201420676760.XU patent/CN204204291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814680A (en) * | 2015-11-30 | 2017-06-09 | 江苏核电有限公司 | A kind of PLC functional verifications device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |