CN2786679Y - Liquid level electric control equipment - Google Patents
Liquid level electric control equipment Download PDFInfo
- Publication number
- CN2786679Y CN2786679Y CN 200520023858 CN200520023858U CN2786679Y CN 2786679 Y CN2786679 Y CN 2786679Y CN 200520023858 CN200520023858 CN 200520023858 CN 200520023858 U CN200520023858 U CN 200520023858U CN 2786679 Y CN2786679 Y CN 2786679Y
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- liquid level
- plc
- switching value
- control equipment
- module
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- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model relates to liquid level electric control equipment, which belongs to the field of electrical control equipment and is composed of a PLC controller and a transducer. A liquid level transducer is connected with a terminal of a digital display control instrument (4) of which the two sets of terminals are connected with a terminal of a PLC switching value module (6); a PLC main body (7) is connected with a terminal and a common port of an output switching value module (8) which is connected with an actuator (10). The liquid level electric control equipment uses an intelligent display instrument to convert an analog quantity signal of the liquid level into a corresponding switching value signal to supply the PLC, and an analog input module of the PLC is canceled. The utility model has the advantages of simple structure and low cost. (The cost is a plurality of hundreds RMB).
Description
Technical field
The utility model relates to a kind of electrical control gear, and the analog quantity load module of especially alternative PLC utilizes read out instrument to substitute the analog quantity load module liquid level electrical control gear of PLC.
Background technology
At present, the liquid level electrical control gear of known PLC system, be to adopt the analog module of PLC directly to import the analog signals of actual liquid level, in the control program of PLC, compare with setting value, the mode of liquid level being controlled with the switching value output module, the apparatus structure complexity, cost higher (more than several thousand yuans).Not susceptible to user acceptance.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of simple in structure, and low cost realizes the liquid level electrical control gear of liquid level control simply, overcomes the deficiency of the liquid level controlling schemes of the analog quantity load module that adopts PLC.
Solving the problems of the technologies described above the technical scheme that is adopted is: a kind of liquid level electrical control gear, constitute by PLC controller, sensor, its liquid level sensor 2 is connected with the terminals of digital display regulator table 4, two winding line ends of numeral display regulator table 4 are connected with the terminals of PLC switching value module 6, PLC main body 7 is connected with common port with the terminals of output switching value module 8, and output switching value module 8 is connected with actuator 10.
The beneficial effects of the utility model are, have adopted intelligent display meter to convert the analog signals of liquid level to corresponding switching value signal and have supplied with PLC, cancelled PLC the analog quantity load module.Simple and reliable for structure, cost low (hundreds of yuan).
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a product theory diagram of the present utility model.
Fig. 2 is the electric hookup of first embodiment of fluid level control device.
Among Fig. 1,1, liquid level, 2, liquid level sensor, 3, analog quantity, 4, digital display regulator table, 5, switching value, 6, PLC switching value module, 7, the PLC main body, 8, output switching value module, 9, the output control switch amount, 10, actuator.
Embodiment
Design philosophy of the present utility model is, the analog quantity of liquid level sensor output is input to intelligent display meter earlier, the setting value of required control liquid level is set on instrument, again by instrument output and the switching input module of the corresponding switching value of required control liquid level to PLC, after control of correspondent program, liquid level is controlled by the switching value output module of PLC.Device is made up of PLC controller, sensor etc., its concrete syndeton is referring to accompanying drawing 1 and accompanying drawing 2, its liquid level sensor 2 is connected with the terminals of digital display regulator table 4, two winding line ends of numeral display regulator table 4 are connected with the terminals of PLC switching value module 6, PLC main body 7 is connected with common port with the terminals of output switching value module 8, the terminals of switching value module 6 connect, and output switching value module 8 is connected with actuator 10.
In Fig. 1, liquid level 1 becomes corresponding analog quantity 3 through liquid level sensor 2, be input to digital display regulator table 4, become corresponding switching value 5, be input to PLC switching value module 6, after 7 controls of PLC main body, to actuator 10, final realization is to the control of liquid level by output switching value module 8 output control switch amounts 9.Wherein PLC switching value module 6, PLC main body 7, output switching value module 8 are formed the PLC controllers jointly.
In embodiment illustrated in fig. 2,7,8 of the analog signals 3 that liquid level sensor 2 produces (4～20mA), be input to 1,2 terminals of digital display regulator table 4 (model XMTA-2035), become corresponding switching value 5) by digital display regulator table; 10,11 liang of winding line ends output to 01,02 terminals of PLC switching value module 6, by the DC power supply of PLC self, COM is a common port, through 7 controls of PLC main body, by the terminals 04 of output switching value module 8 and common port COM output control switch amount 9 to actuator 10, realization
Control to liquid level.PLC switching value module 6, PLC main body 7, output switching value module 8 common PLC controller, the models: OMRON SYSMACCPM1A-20CDR-A formed.Numeral display regulator table 4 and also optional other model of PLC6,7,8.
Claims (1)
1, a kind of liquid level electrical control gear, constitute by PLC controller, sensor, it is characterized in that, liquid level sensor (2) is connected with the terminals of digital display regulator table (4), two winding line ends of numeral display regulator table (4) are connected with the terminals of PLC switching value module (6), PLC main body (7) is connected with common port with the terminals of output switching value module (8), and output switching value module (8) is connected with actuator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023858 CN2786679Y (en) | 2005-04-13 | 2005-04-13 | Liquid level electric control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023858 CN2786679Y (en) | 2005-04-13 | 2005-04-13 | Liquid level electric control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786679Y true CN2786679Y (en) | 2006-06-07 |
Family
ID=36775249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520023858 Expired - Fee Related CN2786679Y (en) | 2005-04-13 | 2005-04-13 | Liquid level electric control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786679Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176170A (en) * | 2011-01-14 | 2011-09-07 | 东南大学 | Flotation cell liquid level automatic control device and compensation control method thereof |
| CN103076819A (en) * | 2011-10-25 | 2013-05-01 | 上海华建电力设备股份有限公司 | Liquid level control device and data processing |
-
2005
- 2005-04-13 CN CN 200520023858 patent/CN2786679Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176170A (en) * | 2011-01-14 | 2011-09-07 | 东南大学 | Flotation cell liquid level automatic control device and compensation control method thereof |
| CN102176170B (en) * | 2011-01-14 | 2013-10-09 | 东南大学 | Compensation control method of flotation cell liquid level automatic control device |
| CN103076819A (en) * | 2011-10-25 | 2013-05-01 | 上海华建电力设备股份有限公司 | Liquid level control device and data processing |
| CN103076819B (en) * | 2011-10-25 | 2015-08-05 | 上海华建电力设备股份有限公司 | A kind of data processing method of fluid level control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |