CN202183180U - Comprehensive experimental box of PLC (Programmable Logic Controller) - Google Patents

Abstract

The utility model discloses a comprehensive experimental box of a PLC (Programmable Logic Controller), which comprises a minimal PLC taken as an experimental box controller and a peripheral hardware of the minimal PLC, and is characterized in that the comprehensive experimental box of the PLC is electrically connected through a bus, and integrally provided with a PLC experimental plate module, a traffic light module, a digital tube module, a mixed liquid level module, a belt transmission module and a stepping motor module, wherein the modules are provided with a circuit interface connected with the minimal PLC. The utility model relates to a teaching experimental device, in particular to a teaching experimental device which can help students rapidly master programmable logic control for system design, and belongs to the field of teaching aids. The experimental box integrates the modules and finishes different experiments on the platform by using the modules, thus being beneficial to saving the experimental cost and reducing the complexity of conversion between the modules.

Description

A kind of PLC comprehensive experiment box

Technical field

The utility model relates to a kind of experiment device for teaching, relates in particular to a kind of student of help and grasps the experiment device for teaching that system design is carried out in FPGA control fast, belongs to the teaching aid apparatus field.

Background technology

Programmable Logic Controller (PLC) is to be core with the microprocessor, combines a kind of novel, the general automaton of computer technology, automated control technology and the communication technology.It has that function is strong, reliability is high, flexible operation, programming is simple and be suitable for series of advantages such as industrial environment; In the application of aspects such as industrial automation, process control, electromechanical integration, conventional industries technological transformation more and more widely, one of three big pillars of modern industry control have been become.Especially up-to-date minicomputer-FX series of PLC (2N-B-40MR/MT) of releasing with Mitsubishi in this is a cost performance height, perfect in shape and function, have the general purpose controller of competitive edge.Be characterized in compact conformation, integrated functions such as switching value control, analog quantity control, high-speed counting and pulse output, instruction is abundant, the programming mode of recited function piece makes programming simpler.

In Programmable Logic Controller (PLC) teaching experimental equipment in the past, teacher need prepare lot of materials lets the student accomplish experiment, even also will spend a lot of times to let student's CC and this ready-made experiment of dismantling accomplish the another one experiment.So just can not be expeditiously accomplish two or a plurality of experiment in a class or more piece class, cause efficiency of teaching low.Since do similar experiment or different experiments the time isolated time longly fade from memory easily, so just be unfavorable for that principle and programming operation that the student understands Programmable Logic Controller (PLC) sooner are on top of.

Summary of the invention

In view of the defective that above-mentioned prior art exists, the purpose of the utility model is to propose a kind of PLC comprehensive experiment box, can on single experimental box, accomplish many different experiments, thereby improves the quality of experimental teaching, reduces instruction cost.

The purpose of the utility model; To be achieved through following technical scheme: a kind of PLC comprehensive experiment box; Comprise that the minicomputer PLC as the experimental box controller reaches and its peripheral hardware; It is characterized in that: said PLC comprehensive experiment box has integrated through the bus circuit connection and has comprised PLC brassboard module, traffic lights module, charactron template, mixing liquid level template at least; Belt delivery module and stepper motor module are provided with the circuit interface that links to each other with minicomputer PLC on said each module or the template.

Further, wherein, the peripheral hardware of said minicomputer PLC comprises that optional arbitrary RS232 serial ports download line, USB interface and ISP that links to each other with Computer Data Communication downloads head.

Further again, wherein, the peripheral hardware of said minicomputer PLC also comprises the PT100 sensor.

Further, wherein, be equipped with the trans circuit interface of the unique corresponding anti-plug of shape between said each module or template and the minicomputer PLC.

Again further, wherein, said minicomputer PLC inner packet contains and is useful on the storage unit of depositing experimental arrangement, the example program with Chinese note, mode of connection and the hardware operating system of PLC own.

Further, wherein, said experimental box has the outer container of aluminium alloy, and the surface of said experimental box each functional module of covering or template is provided with the transparent acrylic panel that is tightly connected with outer container.

The application of the utility model PLC comprehensive experiment box, its outstanding effect is:

1, the standard-sized sheet modular design of putting: all hardware resource is open to the user, and collocation is followed one's bent, and the situation of hardware constraint software can not occur.But both learning softwares, more the understanding hardware that can go deep into.

2, adopt high-grade transparent refined gram force panel, the aluminium alloy outer container, full paster production of machinery, product is elegant in appearance, compact conformation!

3, superpower circuit resource is equipped with: the functional module that possibly run into during integrated all PLC use partly.

4, perfect example program: set experience for many years, each module all have complete band Chinese note example program, schematic diagram, and mode of connection much can directly be used.Can improve user's hardware fast, the software programming level.

5, usb communication interface adapts to the notebook computer of up-to-date no serial ports parallel port fully.Be more suitable for field adjustable work under the field environment.

6, port adopts anti-anti-inserted design, all is furnished with the photo of connection and explains with Chinese.

7, be furnished with ISP and download head, also optional RSR232 or USB interface communication, not influenced by computer configuration and operating system, stability is first-class.

8, full Chinese software operation navigation, the logical design of an exclusive intelligent key is wiped, writes, verification, operation is accomplished automatically, uses extremely convenient letter.

Following constipation closes the embodiment accompanying drawing, the embodiment of the utility model is done further to detail, so that the utility model technical scheme is easier to understand, grasp.

Description of drawings

Fig. 1 is the system topological block diagram of the utility model PLC comprehensive experiment box;

Fig. 2 is the panel synoptic diagram of the utility model comprehensive experiment box;

Fig. 3 a, Fig. 3 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model one function embodiment;

Fig. 4 a, Fig. 4 b are respectively circuit structure diagram and the sequential ladder diagrams of another function of the utility model embodiment;

Fig. 5 a, Fig. 5 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 3rd function embodiment;

Fig. 6 a, Fig. 6 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 4th function embodiment;

Fig. 7 a, Fig. 7 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model five-function embodiment;

Fig. 8 a, Fig. 8 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 6th function embodiment;

Fig. 9 a, Fig. 9 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 7th function embodiment;

Figure 10 a, Figure 10 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 8th function embodiment;

Figure 11 a, Figure 11 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 9th function embodiment;

Figure 12 a, Figure 12 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the tenth function embodiment;

Figure 13 a is respectively circuit structure diagram and the sequential ladder diagram of the utility model the 11 function embodiment;

Figure 14 a, Figure 14 b are respectively circuit structure diagram and the sequential ladder diagrams of the utility model the 13 function embodiment;

Figure 15 a～Figure 15 c is respectively circuit structure diagram and the sequential ladder diagram of the utility model the 14 function embodiment.Mark implication in each accompanying drawing:

The communication interface of 11～master switch, 12～peripheral hardware, 21～PLC breadboard module, 22～stepper motor module, 23～mixing liquid level template, 24～belt delivery module, 25～traffic lights module, 26～charactron template.

Embodiment

As depicted in figs. 1 and 2; The utility model PLC comprehensive experiment box comprise as the minicomputer PLC of controller with and peripheral hardware; Programmable Logic Controller (PLC) experimental box has integrated through the bus circuit connection and has comprised PLC brassboard module 21, traffic lights module 25, charactron template 26, mixing liquid level template 23 at least; Belt delivery module 24 and stepper motor module 22 are provided with circuit interface on these modules simultaneously.

Then the peripheral hardware of minicomputer PLC comprises that optional arbitrary RS232 serial ports download line, USB interface and ISP that links to each other with Computer Data Communication downloads head, and the peripheral hardware of minicomputer PLC also comprises the PT100 sensor simultaneously.And being equipped with the trans circuit interface of the unique corresponding anti-plug of shape between each module or template and the minicomputer PLC, minicomputer PLC inner packet contains and is useful on the storage unit of depositing experimental arrangement, the example program with Chinese note, mode of connection and the hardware operating system of PLC own simultaneously.Last experimental box has the outer container of aluminium alloy, and the surface of said experimental box each functional module of covering or template is provided with the transparent acrylic panel that is tightly connected with outer container.

Below be the brief description of structure, function and the characteristics of the utility model experimental box one specific embodiment: with ZK200+ series of PLC comprehensive experiment box is that it mainly is based upon on the multi-functional Mitsubishi PLC platform the utility model one specific embodiment (hereinafter to be referred as ZK200+ series).First brief account is once about the pilot lamp and the button part of PLC experimental box before doing experiment.As shown in Figure 2: the bottom right is an indicating lamp module, and the top is 24V voltage, 12V voltage and earth terminal, is equipped with a lead-out terminal and a power light, below Y0～Y8 be the green indicating lamp of light LED material.SPEAKER is a thumper, can be used as warning device and uses.

A left side is button module down.The first half is the same with indicating lamp module; Also be the power supply access port, below X0, X1, X2, X5, X6 represent the conventional push button of SB1～SB5 respectively, remaining X3, X4, X7, X8 then represent the button of the band self-locking of K1～K4 respectively; PT100 is a temperature sensor, can simulation temperature tolerance.

This experimental box is can the various experiments of independent assortment as shown in table 1:

Table 1:

Button of experiment 1 usefulness realizes that a pilot lamp is alternately bright:

Requirement of experiment: it is alternately bright to press bright 0.5S of pilot lamp of start button SB0 0.5S that goes out, and presses stop button SB2, and lamp quits work.

Experimental procedure: according to the exercise question requirement; Judge required instruction and hardware device: a button, a pilot lamp gets final product with some leads, and the software aspect needs 2 normal open switch; Coil and timer or auxiliary relay M8013 confirm that the back first step is exactly the said I/O allocation table in front.

(explain: start button in the I/O allocation table and pilot lamp L1 are self-defined; The power supply that connects is the 24V DC voltage, and the PLC input and output that generally do not have to specify are the 24V DC voltage)

Each experiment can be programmed with several different methods in fact; The hobby and the idea that depend on the individual; The deviser encourages with several different methods writing with an experiment; The various instructions of utilization that like this can be more skilled could be understood the usage of each instruction and contact and the difference between each instruction more.

Last machine debugging and revising: in this experiment as Fig. 3 a only need input terminal X0, X1 among the PLC are received two not with the button (SBO, SB2) of self-locking, the GND (earth terminal) that the GND (COM) of button module is connected to power supply can accomplish the circuit diagram of importation.Because the end of COM wherein has been connected to GND (earth terminal) on pcb board, therefore need not connect again.And the circuit diagram of output need be connected to a pilot lamp with Y0, and corresponding C OM is terminated to the earth terminal (select Y0 here, therefore need COM0 be connected to earth terminal) of power supply; 24V (COM) end of pilot lamp is connected to the positive pole (24V) of power supply; The circuit diagram of output has just been accomplished like this, next exactly power switch is opened, and PLC is in input state (STOP); The input correct procedure; Program is in running status (RUN) with PLC afterwards shown in the ladder diagram of Fig. 4 b, carried out operation experiments.(auxiliary relay wherein and timer are the PLC inner member, therefore need not go to connect).

Test the very few warning device of 2 hopper charges:

Requirement of experiment: divide manual.Being automatically when manual switch S BI breaks off, is manual during connection.Automatically: when low limit switch SB2 connected, alarm began to ring, 10 times (bright 0.5S, 0.5S goes out) of the continuous flicker of alarm lamp simultaneously, and back alarm stops to ring, and alarm lamp goes out, and presses SR in addition, stops immediately.Manually: press low spacing button, alarm begins to ring, and SR is pressed in the alarm lamp flicker, stops immediately.

At first introduce about liquid mixing and material delivery module part.

Be the material translator unit above, L1～M3 is pilot lamp, and S1～S4 is button;

Lower part is a liquid mixing, and Y1～H is pilot lamp, and S1～T is switch.

Experimental procedure: one, I/O allocation table.

Wherein PLS is a rising differentiated pulse output order, and its meaning is only in first pulse output, later on regard to no longer output; RST is reset instruction, and its meaning is that C0 is placed low level.

Two, line debugging

Press the circuit that connection layout shown in Fig. 4 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Fig. 4 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the dry run of 3 three grades of travelling belts:

Requirement of experiment: the end of (1) a certain production line closes three grades of belt conveyers.Drag by M1, M2, three motor of M3 respectively, have manually and automatic two kinds of control modes.(2) manually the time. press start button. require time interval of pressing 3s.And the sequence starting of pressing M1 → M2 → M3, press stop button. press the time interval of 5s.And stop by the order of M3 → M2 → M1.When (3) controlling automatically. require to press start button. press 4s time interval sequence starting.Behind 5s, stop in proper order by time interval of 6s.Accomplished a working cycle.Behind 3s, repeat above-mentioned working cycle automatically,, press stop button, stop after must having accomplished a working cycle as at a time.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Fig. 5 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Fig. 5 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

The octuple horse race lamp of experiment 4 lists:

Requirement of experiment: press start button, eight pilot lamp L0～L7 light according to the time sequencing of the 1S of being separated by, begin cycle lighting from L0 again after L7 is bright; Press stop button, lamp extinguishes immediately.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Fig. 6 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Fig. 6 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the experiment of 5 stepper motors:

Requirement of experiment: stepper motor is a kind ofly to control with electric pulse; Electric impulse signal is converted to the motor of respective corners displacement; Electric pulse of the every input of stepper motor just takes a step forward; Therefore the angular displacement of its output is directly proportional with the umber of pulse of input, as long as control is input to angular displacement and the rotating speed that umber of pulse or pulsed frequency in its coil winding can the control step motor, but also need carry out the distribution of pulsqe distributor for the pulse of each coil winding input of stepping motor.Require PLC software programming design pulsqe distributor at present, realize stepping motor with the work of four phase eight beat step mode, and require that stepping motor is provided with fast, control at a slow speed, rotating and 4 kinds of control modes of one-step control.

At first the stepper motor module is done simple an introduction: wherein a week is one 360 ° cycles; Divide it for 6 five equilibriums; One of them is divided into 60 °, is equipped with sensor in the critical point of each five equilibrium, and S1～S6 wherein just is expressed as from zero degree and begins six sensors in the direction of the clock; Stepper motor used herein is a four phase eight beat type motor; Therefore have that A, A are non-, B, non-four phases of B, lower left corner toggle switch is used for other purposes, is placed on here also in order to increase the relevance between the module.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Fig. 7 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Fig. 7 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test 6 three road question-and-answer game apparatus:

Requirement of experiment: contest is divided into three and forms a team: children two people group, student one people group, professor two people group.1) player answers host's problem, must try to be the first to press the button, and must the host after pilot lamp is bright presses SR and just can stop.(can only a lamp bright).2) in order to give the race-entry children some preferential treatments, as long as one group of two people's match team has a people bright by next lamp, and in order professor's group to be done some restrictions, Cai it is bright two people to press the button lamp simultaneously.If children press the button in the 10s that the host closes a switch, then lucky lamp is bright, obtains once lucky chance to show.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Fig. 8 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Fig. 8 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the control of 7 theatrical art lamp decorations:

Requirement of experiment: see prismy light of stage at ordinary times, can control that the stage lamp decoration has seven road lamps with PLC; 4 roads, top are arch, and 3 roads, below are stepped appearance, require the glittering sequential of 1-7 signal lamp such as figure below now: 7 signal lamps one bright go out and hocket; 6,5, No. 43 road lamps are lighted from inside to outside successively, and 3,2, No. 1 the ladder lamp is from top to bottom lighted successively, goes out entirely again; Whole process need 60s, round.

Experimental procedure: one, 1/0 allocation table.

Two, line debugging

Press the circuit that connection layout shown in Fig. 9 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Fig. 9 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the automatic control of 8 traffic lights:

Requirement of experiment: 1) four corners of the world is equipped with the craspedodrome green light, craspedodrome amber light, craspedodrome red light; People's Bank of China's green light, People's Bank of China's red light.Press start button SB1, the bright 30S of East and West direction craspedodrome green light dodges 3S, changes the bright 2S of amber light; The bright 30S of north and south craspedodrome green light is changeed in the back, dodges 3S, changes the bright 2S of amber light; The back gets into next circulation; 2) East and West direction People's Bank of China green light should be after East and West direction be kept straight on the bright 3S of green light bright 27S, 3S is dodged in the back, it is bright to transfer red light to; North-south People's Bank of China green light should be after the bright 3S of green light be kept straight in north and south bright 27S, dodge 3S, it is bright to change red light; 3) press SB3 during special circumstances, the equal amber light flicker in the four corners of the world (0.5S is bright, and 0.5S goes out); 4) press stop button SB2, all lamps all extinguish.

In this also simple declaration this module once: at first upper part is the traffic lights experimental section, and this module originally is exactly a common traffic lights in the life, has just dwindled it, gives image, sense directly perceived.Letter character representative wherein can find out fully that wherein X0～X1 is shift knob from figure, other all that represent traffics pilot lamp.

Lower part is a digital display part, and the number that this module is mainly used in one type of digital electrical sublist etc. shows that wherein bottom four integrated chips are the 65C325K model, and the integrated chip in the left side is the 72J4L3K type.

Experimental procedure: one, I/O allocation table---crossroad access lamp I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Figure 10 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Figure 10 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the experiment of 9 cycle counts:

Requirement of experiment: press the button SB1, digital show that adding one speed from 00-99 with per second shows successively, add a demonstration since 00 again, circulate with this to 99 back circulations; Press stop button, stop at once showing.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Figure 11 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Figure 11 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test 10 4 color lamp flickerings:

Requirement of experiment: start/stop with button, make of the rule conversion of four color lamps, become once with per second automatically by sexadecimal number, bright from secretly beginning to add one entirely to entirely, subtract one more automatically to complete dark control procedure.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Figure 12 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Figure 12 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Experiment 11 coding inputs:

Requirement of experiment: design is with four code switchs, and presetting a signal lamp can be glittering with 1～15 glittering number of times, and lamp is with bright 2S, and the mode of dark 1S changes.Control program by startup/stop button.

Experimental procedure: one, 1/0 allocation table.

Two, line debugging

Press the circuit that connection layout shown in Figure 13 a connects experimental box, and power switch is opened, PLC is in input state (STOP), and again PLC is in running status (RUN) behind the input correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the steering indicating light of 12 automobiles:

Requirement of experiment: design is with a four way switch, for motor turning or backup lamp are controlled, when switch is left-hand lamp L1 during in the A position, presses bright 2S, and the lS that goes out glimmers.Dextrad lamp L2 is by bright 1S when the B position, and the 2S that goes out glimmers, and backup lamp L3 is by bright 3S when the C position, and the 3S that goes out glimmers.And can stop control program after working one minute automatically for not turning to when the D position.

The circuit of its experimental procedure and traffic lights is close, can carry out circuit according to traffic lights and be connected this and just do not do concrete detailed description.

Test 13 dolly automatic feedings:

Requirement of experiment: the design dolly is parked in the original place earlier and depresses the SQ1 position switch; After the original place is with 2.8S dress A material, depress SQ2 earlier when pressing start button SB1 with advancing to second voluntarily; Parking advances to third ground voluntarily and depresses SQ3 after feeding with 2.53S, hairpinning parking voluntarily behind the parking discharging 5S.Charging more voluntarily.Use pilot lamp when loading and unloading A, B material.When pressing another stop button SB2, car stops the control program to the original place after must accomplishing a feeding.

Experimental procedure: one, I/O allocation table.

Two, line debugging

Press the circuit that connection layout shown in Figure 14 a connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Figure 14 b correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Test the automatic control of 14 apparatus for combining liquids:

Requirement of experiment: realize the control of apparatus for combining liquids with PLC and solenoid valve etc.Apparatus for combining liquids shown in Figure 15 a; L1.L2.L3 is respectively high, normal, basic liquid level sensor, and corresponding sensor is connected when liquid reaches corresponding height, and the inflow of liquid A, liquid B and the outflow of mixing material are respectively by YV1.YV2; YV3 control, M is a stirring motor.Concrete control requires as follows:

Initially: be in the container that the emptying state---starting: press start button SB1, YV1 opens, liquid A flows into, and when liquid level rises to L2, closes YV1, opens YV2; Liquid B flows into, and liquid level rises to L1, closes YV2, and starting motor M begins to stir, and starts timer simultaneously; After the 10S, M closes, and starts YV3 simultaneously, and mixing material is emitted; When liquid level drops to L3, L3 is by being switched to disconnection, the starting timer, and container emptying after the 5S, YV3 closes, and restarts next circulation-and stops: pressing stop button SB2, handle after the current period, system is parked in initial position.

Experimental procedure: one, 1/0 allocation table.

Two, line debugging

Press the circuit that connection layout shown in Figure 15 b connects experimental box, and power switch is opened, PLC is in input state (STOP), by again PLC being in running status (RUN) behind the input of ladder diagram shown in Figure 15 c correct procedure, next just can operation experiments.(auxiliary relay wherein and timer are the inner soft element of PLC, therefore need not go to connect).

Through above-mentioned embodiment, be not difficult to find out that the utility model is the wider PLC comprehensive experimental device of a kind of scope of application, can relate to the kinds of experiments content except that above-mentioned experiment.

Claims (6)

1. PLC comprehensive experiment box; Comprise that the minicomputer PLC as the experimental box controller reaches and its peripheral hardware; It is characterized in that: said PLC comprehensive experiment box has integrated through the bus circuit connection and has comprised PLC brassboard module, traffic lights module, charactron template, mixing liquid level template at least; Belt delivery module and stepper motor module are provided with the circuit interface that links to each other with minicomputer PLC on said each module or the template.

2. a kind of PLC comprehensive experiment box according to claim 1 is characterized in that: the peripheral hardware of said minicomputer PLC comprises that optional arbitrary RS232 serial ports download line, USB interface and ISP that links to each other with Computer Data Communication downloads head.

3. a kind of PLC comprehensive experiment box according to claim 1, it is characterized in that: the peripheral hardware of said minicomputer PLC also comprises the PT100 sensor.

4. a kind of PLC comprehensive experiment box according to claim 1 is characterized in that: be equipped with the trans circuit interface of the unique corresponding anti-plug of shape between said each module or template and the minicomputer PLC.

5. a kind of PLC comprehensive experiment box according to claim 1 is characterized in that: said minicomputer PLC inner packet contains and is useful on the storage unit of depositing experimental arrangement, the example program with Chinese note, mode of connection and the hardware operating system of PLC own.

6. a kind of PLC comprehensive experiment box according to claim 1, it is characterized in that: said experimental box has the outer container of aluminium alloy, and the surface of said experimental box each functional module of covering or template is provided with the transparent acrylic panel that is tightly connected with outer container.

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