CN201359694Y - Logic controller based on microprocessor - Google Patents
Logic controller based on microprocessor Download PDFInfo
- Publication number
- CN201359694Y CN201359694Y CNU2009200671284U CN200920067128U CN201359694Y CN 201359694 Y CN201359694 Y CN 201359694Y CN U2009200671284 U CNU2009200671284 U CN U2009200671284U CN 200920067128 U CN200920067128 U CN 200920067128U CN 201359694 Y CN201359694 Y CN 201359694Y
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- logic controller
- microprocessor
- controller based
- output
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Abstract
The utility model aims to provide a logic controller based on a microprocessor, which can effectively solve the problems of high cost, bad program confidentiality and the like in the prior art. The logic controller comprises a mainboard which is provided with an embedded CPU, a memory unit, an input unit, an output unit, a programming communication unit and a display unit, and the embedded CPU is connected with the memory unit, the input unit, the output unit, the programming communication unit and the display unit. The logic controller with strong practicability and low cost can download programs, realize online simulation, and cannot easily be copied.
Description
Technical field
The utility model relates to a kind of logic control device, particularly a kind of logic controller based on microprocessor, can according to user's actual demand carry out with or, NOT logic exploitation and control.
Background technology
Programmable logic controller (PLC), promptly Programmable Logic Controller is called for short PLC, and is simple to operate because of it, and control is convenient, now has been widely used in the various industrial electric controls.The PLC function is a lot, can realize network communication function, analog quantity control function, pid control function, high-speed counting function etc. simultaneously.PLC integrates multiple function, and performance is outstanding, but its cost is very high, in some cases, a lot of functions use less than, do not have necessity yet.In addition, the program confidentiality of PLC is not strong, is easy to transplantedly, and some products based on PLC control are easy to be copied by the rival, make that developer's legitimate rights and interests are damaged.
The utility model content
The purpose of this utility model provides a kind of logic controller based on microprocessor, problems such as the cost that can effectively solve the prior art existence is too high, program confidentiality difference.The utility model relates to a kind of logic controller based on microprocessor, comprise mainboard, described mainboard is provided with embedded type CPU unit, storage unit, input block, output unit, programming communication unit and display unit, and described embedded type CPU unit is connected with storage unit, input block, output unit, programming communication unit, display unit respectively.Described embedded type CPU unit is the LCU chip.Described storage unit is EEPROM.Described input block is the input interface DI with photoelectricity isolation features.Described output unit is the output interface transistor with photoelectricity isolation features.Described output unit is relay DO.Described display unit is a LCD.Described programming communication unit is the RS232 communication interface with electrical isolation.Advantage of the present utility model is: the utility model can download, and realizes in-circuit emulation, and is practical, with low cost, and uses product of the present utility model to be difficult for being copied by the people.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
Comprise mainboard 1 among the figure, described mainboard is provided with embedded type CPU unit (central processing unit) 2, storage unit 3, input block 4, output unit 5, programming communication unit 6 and display unit 7, and described embedded type CPU unit is connected with storage unit, input block, output unit, programming communication unit, display unit respectively.
Described embedded type CPU unit is the LCU chip, and promptly Logic Computer Unit for computing of the present utility model center, is provided with Operations Control Procedure in the LCU chip, can carry out engineering computings such as logical operation, mathematical operation.The LCU chip can regularly read the signal to input block, regularly drives the load of output interface unit.
Described storage unit is EEPROM, and promptly electrically erasable read only memory is used for data messages such as save project program and item argument, and generally selecting memory space in the utility model for use is that the EEPROM of 256K gets final product.
Described input block is the input interface DI with photoelectricity isolation features, as the input signal physical channel of system, and can input digit amount signal and analog signals.
Described output unit is output interface transistor or the relay DO with photoelectricity isolation features, as the output signal physical channel of system, can export digital quantity signal and analog signals.
Described display unit is the LCD LCD, generally selects 3 * 16 word LCD LCD for use, and some information in the utility model work are as contents such as system state, failure messages, by the corresponding data of all right display items display of configuration.
Described programming communication unit is the RS232 communication interface with electrical isolation, and the physical communication passage of the utility model and host computer is provided, and can realize the download of program, functions such as online simulation operation by this interface.The utility model can download, and realizes in-circuit emulation, completion logic control, and performance is simple, and cost is lower and practical, and uses product of the present utility model to be difficult for being copied by the people.
Claims (8)
1. based on the logic controller of microprocessor, comprise mainboard, it is characterized in that: described mainboard is provided with embedded type CPU unit, storage unit, input block, output unit, programming communication unit and display unit, and described embedded type CPU unit is connected with storage unit, input block, output unit, programming communication unit, display unit respectively.
2. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described embedded type CPU unit is the LCU chip.
3. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described storage unit is EEPROM.
4. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described input block is the input interface DI with photoelectricity isolation features.
5. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described output unit is the output interface transistor with photoelectricity isolation features.
6. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described output unit is relay D0.
7. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described display unit is LCD LCD.
8. a kind of logic controller based on microprocessor as claimed in claim 1 is characterized in that: described programming communication unit is the RS232 communication interface with electrical isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200671284U CN201359694Y (en) | 2009-01-19 | 2009-01-19 | Logic controller based on microprocessor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200671284U CN201359694Y (en) | 2009-01-19 | 2009-01-19 | Logic controller based on microprocessor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359694Y true CN201359694Y (en) | 2009-12-09 |
Family
ID=41425459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200671284U Expired - Fee Related CN201359694Y (en) | 2009-01-19 | 2009-01-19 | Logic controller based on microprocessor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359694Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608947A (en) * | 2012-03-23 | 2012-07-25 | 浙江大学 | Programmable control system and configuration program control method |
-
2009
- 2009-01-19 CN CNU2009200671284U patent/CN201359694Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608947A (en) * | 2012-03-23 | 2012-07-25 | 浙江大学 | Programmable control system and configuration program control method |
| CN102608947B (en) * | 2012-03-23 | 2013-09-18 | 浙江大学 | Programmable control system and configuration program control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20120119 |