CN201681300U

CN201681300U - Controller test chamber

Info

Publication number: CN201681300U
Application number: CN2009202111323U
Authority: CN
Inventors: 査春峰; 张珏春
Original assignee: SHANGHAI PAL-FIN AUTO CONTROL TECHNOLOGY Co Ltd
Current assignee: Fin control (Shanghai) Limited by Share Ltd
Priority date: 2009-10-23
Filing date: 2009-10-23
Publication date: 2010-12-22
Anticipated expiration: 2019-10-23

Abstract

The embodiment of the utility model discloses a controller test chamber which comprises 4 DI/DO-units, 24 DI/DO/PWM units, a dual-path pulse signal generating unit, 8 DI/PI units, 4 DI units, 8 DI-/AI (V/A) units and 2 pieces of CAN bus equipment; the dual pulse signal generating unit is used together with the DI/PI units; the units are arranged in the test chamber; and all functional multiplex terminal units in the test chamber select circuits with waveband switch positions thereon so as to construct and modify a simulation system. The test chamber can realize all sensor signals, such as 0-5V voltage signals, 4 to 20mA current signals, 10-10K pulse and the like that an EPEC2024 controller can receive. Each terminal on a panel is provided with a circuit module with comprehensive functions, selects whether to input or output through one waveband switch, and whether to serve as switching quantity or analog quantity.

Description

The controller chamber

Technical field

The utility model relates to PLC automatic control technology field, more particularly, relates to a kind of controller chamber.

Background technology

One section control program is write by the slip-stick artist will set up simulation system in the laboratory after finishing, and program downloaded in the controller, through repeatedly debug and revise meet the demands substantially after, download to debugging and modification in the actual Be Controlled system again, meet the demands fully just to calculate up to the control effect and finish.This wherein, the foundation of simulation system bothers very much, connect a lot of lines, connect various sensors, some can't directly use sensor, such as temperature sensor, and pressure transducer, its measuring amount implements difficult in the laboratory, engineers will be built ball bearing made using or replace sensor to produce controlled and similar to sensor signal signal with D.C. regulated power supply with potentiometer this time.Lead-out terminal generally uses miniature bulb or solenoid valve to monitor the digital quantity or the pwm signal of output.If system is very complicated, will connect a lot of lines, for preventing short circuit, wiring place will wrap up, and after program and system are revised, changes also very inconvenient, even can use connecting terminal block in case of necessity, but so multi-thread use screwdriver to connect still be very much trouble.

The utility model content

In view of this, the utility model provides a kind of controller chamber, to realize the simulation system of fast construction and the simulated experiment of modification control system.

For achieving the above object, the utility model provides following technical scheme:

A kind of controller chamber, comprise 4 DI/DO-unit, 24 DI/DO/PWM unit, 1 two-way pulse signal generating unit, 8 DI/PI unit, 4 DI unit, 8 DI-/AI (V/A) unit, 2 CAN Bus Interface Units, described two-way pulse signal generating unit uses with 8 DI/PI unit matching respectively, and above-mentioned all unit all are arranged in the described chamber, and are provided with waver on each unit, each multiplexing functions terminal unit is selected circuit by the waver position on it in the described chamber, thereby builds and revise simulation system.

Preferably, the display device of each output unit is light emitting diode or bulb in the above-mentioned controller chamber, described controller chamber.

Preferably, above-mentioned controller chamber, the analog quantity voltage input in described DI-/AI (V/A) unit realizes that to 5V reference voltage dividing potential drop 0-5V is adjustable by the 1K potentiometer, the input of analog quantity electric current is with 1K potentiometer and terminal series connection, with the power supply of 5V reference voltage.

Preferably, above-mentioned controller chamber also comprises the interface unit that has standard communication interface and independent terminals that is arranged in the described chamber.

Preferably, above-mentioned controller chamber, two pulse signals in the described two-way pulse signal generating unit, adding comparer by simple RC concussion produces, select different electric capacity to realize that pulsed frequency 10-10K segmentation is adjustable by 10K potentiometer and waver, be connected to the PI terminal that is in vacant state with lead from signal output, and ground wire is conducting in inside.

The utility model is simple in structure, multiple functional, substantially can realize the 0-5V voltage signal except that bus signals (can produce by the CAN bus apparatus), 4-20mA current signal, all the sensors signal that EPEC2024 controllers such as 10-10K pulse can receive with PC.The nearly all terminal of controller of evenly having arranged on the panel, each terminal all has a multiple functional circuit module, selects this multiplexing terminal to connect input or output by a waver, is as switching value or analog quantity.The chamber side is also arranged the communication terminal, has standard communication interface, makes things convenient for program to download and communication.

The utility model also has consideration aspect energy-conservation, when the waver of terminal module was got to the OFF state, the power supply of module also had been cut off simultaneously, had both saved electric energy, had also reduced system interference.Advantage aspect increasing work efficiency is very tangible, has saved wiring and has taken out stitches, and selects potentiometer, connects the trouble of many things such as bulb.The cost aspect, the D.C. regulated power supply that system debug that the utility model is simply integrated will be used and the partial function of signal generator, and its cost is more much lower than these two equipment.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

The controller chamber conspectus that Fig. 1 provides for the utility model embodiment;

The DI/DO-unit schematic diagram that Fig. 2 provides for the utility model embodiment;

The DI/DO/PWM unit schematic diagram that Fig. 3 provides for the utility model embodiment;

The DI/AI that Fig. 4 provides for the utility model embodiment (V/A) unit schematic diagram;

The two-way pulse signal generation circuit schematic diagram that Fig. 5 provides for the utility model embodiment.

Embodiment

For quote and know for the purpose of, hereinafter the technical term of Shi Yonging is as follows:

Waver: be used for changing the electronic component that wave band or choosing connect different circuit, this example is selected for use and is stirred the slide sheet type waver, also is toggle switch;

Toggle switch: be commonly called as toggle switch, its principle is miniature rocker switch.

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

The utility model discloses a kind of controller chamber, to realize fast construction and to revise simulation system.

The basic thought that the utility model solves technical matterss such as building and to revise that simulation system wastes time and energy is: at the EPEC2024 controller with its all possible system schema and the switch used, potentiometer and light emitting diode (replacement bulb) are integrated in the instrument container, use dedicated connector to connect controller, and power to controller by chamber, only the waver position need be set can build simulation system, changes the waver position and can revise simulation system.

See also Fig. 1, the controller chamber conspectus that Fig. 1 provides for the utility model embodiment.

The utility model is by 4 DI/DO-unit, 24 DI/DO/PWM unit, 1 two-way pulse signal generating unit, 8 DI/PI unit, 4 DI unit, 8 DI-/AI (V/A) unit, 2 CAN buses, and other reference power source, current feedback is formed etc. independent terminals.

Signal input aspect: it is still unsettled that the switching value input realizes that with a toggle switch terminal connects power supply (or ground connection), the analog quantity voltage input realizes that to 5V reference voltage dividing potential drop 0-5V is adjustable by the 1K potentiometer, the input of analog quantity electric current is with 1K potentiometer and terminal series connection, power with the 5V reference voltage, utilize the inner 220 Europe resistance to earth of input terminal, when resistance 1.22k-0.22k even variation, corresponding just is the electric current of the variation of 4-20mA, (can realize the current signal of 0-20mA) if adopt the circuit identical with 0-5V voltage, this is also simpler than using simple current source circuit, and does not allow the restriction of opening a way.Pulse signal is a two-way, adding comparer by simple RC concussion produces, select different electric capacity to realize that pulsed frequency 10-10K segmentation is adjustable by 10K potentiometer and waver, during use as signal generator, be connected to the PI terminal with lead from signal output and get final product (PI terminal stir will get to OFF earlier be vacant state), ground wire is conducting in inside.

See also Fig. 2, the DI/DO-unit schematic diagram that Fig. 2 provides for the utility model embodiment.

Waver selects terminal as still output of input, and input adopts toggle switch to realize connecing high level or unsettled, and the LED series limiting resistor is adopted in output, and anode connects power supply, and the negative electrode connecting terminal is realized the output of negative sense switching value.

The utility model replaces bulb with light emitting diode string resistance, not only makes things convenient for the integrated of system, makes the chamber outward appearance more beautiful, and function does not change fully, and its life-span is also more lasting than bulb.

See also Fig. 3, the DI/DO/PWM unit schematic diagram that Fig. 3 provides for the utility model embodiment.

Waver selects terminal as still output of input, input adopts toggle switch to realize connecing high level or unsettled, and LED series limiting resistor, anode connecting terminal are adopted in output, plus earth, light emitting diode is bright when terminal output high level or pwm signal.

See also Fig. 4, the DI/AI that Fig. 4 provides for the utility model embodiment (V/A) unit schematic diagram.

Digital quantity adopts toggle switch to select ground connection or unsettled, and analog quantity (V/A) adopts the 1K potentiometer to realize 0-5V or 0-20mA signal.

See also Fig. 5, the two-way pulse signal generation circuit schematic diagram that Fig. 5 provides for the utility model embodiment.

Based on RC integrating circuit making alive comparer, comparer output connects forward and the negative input that negative feedback branch of a positive feedback is clipped to comparer, forms the principle of concussion square wave.Because this circuit, adopt single power supply, comparer positive input be biased circuit herein voltage rise near the 1/2Vcc.The frequency of the size adjustment output square wave (broad pulse) by regulating feedback resistance Rf is selected capacitance size by the third gear selector switch, thus the pulsed frequency scope of selecting signal to take place.

DI/PI adopts toggle switch to select to connect high level or unsettled, and switch is taken vacant state when connecing the pulse input.

All unit are except that same reference power source is got in the part unit in the chamber, all be separate between the unit, the connector of all unit and controller is connected, connect controller after, the functional circuit that needs in each toggle switch selection linkage unit is set respectively, constitutes simulation system.

Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims

1. a controller chamber is characterized in that, comprises 4 DI/DO-unit, 24 DI/DO/PWM unit, 1 two-way pulse signal generating unit, 8 DI/PI unit, 4 DI unit, 8 DI-/AI unit, 2 CAN Bus Interface Units, display device;

Described two-way pulse signal generating unit uses with 8 DI/PI unit matching respectively;

Above-mentioned all unit all are arranged in the described chamber;

Each multiplexing functions terminal unit is provided with waver in the described chamber, selects connection circuit by controlling described waver, in order to build or to revise simulation system.

2. controller chamber as claimed in claim 1 is characterized in that, display device is light emitting diode or bulb in the described controller chamber.

3. controller chamber as claimed in claim 1, it is characterized in that, analog quantity voltage input in the described DI-/AI unit realizes that to 5V reference voltage dividing potential drop 0-5V is adjustable by the 1K potentiometer, the input of analog quantity electric current is with 1K potentiometer and terminal series connection, with the power supply of 5V reference voltage, the negative sense switching value is imported by toggle switch ground connection or unsettled realization.

4. controller chamber as claimed in claim 1, it is characterized in that, two pulse signals in the described two-way pulse signal generating unit, adding comparer by simple RC concussion produces, select different electric capacity to realize that pulsed frequency 10-10K segmentation is adjustable continuously by 10K potentiometer and waver, be connected to the PI terminal that is in vacant state with lead from signal output, and ground wire is conducting in inside.

5. controller chamber as claimed in claim 1 is characterized in that, also comprises the interface unit that has standard communication interface and independent terminals that is arranged in the described chamber.