CN203027291U - Multi-protocol and multi-serial-port controller - Google Patents
Multi-protocol and multi-serial-port controller Download PDFInfo
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- CN203027291U CN203027291U CN 201220616267 CN201220616267U CN203027291U CN 203027291 U CN203027291 U CN 203027291U CN 201220616267 CN201220616267 CN 201220616267 CN 201220616267 U CN201220616267 U CN 201220616267U CN 203027291 U CN203027291 U CN 203027291U
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Abstract
The utility model discloses a multi-protocol and multi-serial-port controller characterized by comprising a processor and a control chip, wherein the processor and the control chip are in communication with each other. Four conversion chips are controlled by the control chip at the same time to form the downlink communication of the entire controller. The serial-port controller of the processor is in communication with the conversion chips to form the uplink communication of the entire controller. Due to the adoption of the above circuit structure, the controller enables not only the multi-protocol and multi-serial-port communication, but also the communication among network equipment, industrial personal computers and other equipment. Meanwhile, due to the adoption of the multi-protocol and multi-serial-port controller instead of an existing high-end controller, the production cost is further lowered.
Description
Technical field
The utility model relates to the communication field in the industrial automation application, the particularly many serial ports controllers of a kind of multi-protocols.
Background technology
In distributed industrial automation is used, communication data due to logging-controlling apparatus used in situ, has distributivity, many serial ports controllers are as a kind of network intermediate equipment, for measure and control device, have the characteristic of host computer, have the characteristic of slave computer for background monitoring system, shield simultaneously the agreement inconsistency of measure and control device, consistent communications protocol is provided.
The controller of some low sides that occur in the market only has single serial ports or two serial ports passage, and in real world applications, we need a plurality of serial ports passages, can't satisfy the demand of use.And high-end controller not only volume is larger, and a lot of resource be use less than, can cause the waste of resource, increase production cost.
Provide a kind of novel controller to support various agreement, abundant interface is provided, realize that the communication of different measuring and controlling equipments and the many serial ports controllers of multi-protocols is interconnected, just the communication with other network equipments, industrial computer is the problem that prior art need to solve.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of multi-protocols many serial ports controllers, support various agreement, abundant interface is provided, the communication that realizes different measuring and controlling equipments and the many serial ports controllers of multi-protocols is interconnected, and the purpose of other network equipments, industrial computer communication.
For solving the problems of the technologies described above, the technical solution of the utility model is, the many serial ports controllers of a kind of multi-protocols is characterized in that: described controller is that processor and control chip carry out communication, and control chip is controlled the downgoing communication that four conversion chips consist of whole controller simultaneously; The serial ports controller of processor and other conversion chip carry out the uplink communication that communication consists of whole controller, thereby have realized the many serial port functions of multi-protocols of whole controller.
Described processor is connected respectively to eeprom memory and outer extension memory.
The model of described processor is LPC2136.
The model of described control chip is SC16C654.
The model of described conversion chip is RSM485CT, to realize the communication conversion between RS232 and RS485.
The many serial ports controllers of a kind of multi-protocols, owing to adopting the foregoing circuit structure, this controller has following advantage: 1, support the multi-protocols multi-serial ports communication, realize the communication between the equipment such as the network equipment and industrial computer; 2, replace existing high side controller, a nearly step reduces production costs.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the structured flowchart of the many serial ports controllers of a kind of multi-protocols of the utility model;
Fig. 2 is the circuit diagram of many serial ports controllers of a kind of multi-protocols of the utility model downgoing communication;
Fig. 3 is the circuit diagram of many serial ports controllers of a kind of multi-protocols of the utility model uplink communication;
In Fig. 1-3,1, processor; 2, control chip; 3, conversion chip; 4, eeprom memory; 5, outer extension memory.
Embodiment
As shown in Figure 1, the utility model is that processor 1 carries out communication with control chip 2, and control chip 2 is controlled the downgoing communication that four conversion chips 3 consist of whole controller simultaneously; The serial ports controller of processor 1 and other conversion chip 3 carry out the uplink communication that communication consists of whole controller, thereby have realized the many serial port functions of multi-protocols of whole controller.Processor 1 is connected respectively to eeprom memory 4 and outer extension memory 5.
Wherein, the model of processor 1 is LPC2136.The model of control chip 2 is SC16C654.The model of conversion chip 3 is RSM485CT, to realize the communication conversion between RS232 and RS485.
The utility model is the many serial ports controllers of multi-protocols, and its hardware system mainly is comprised of parts such as processor LPC2136, many serial ports control chip SC16C654, RS232-RS485 conversion chips.Overall system design is ingenious succinct, has the advantages such as integrated level is high, superpower anti-interference, ultralow effect.
As shown in Figure 2, chip SC16C654 is many serial ports control chip 2, and here, the utility model expands four serial ports by it, as descending four communication ports, the terminal equipment that articulates is carried out the collection of data.And Fig. 3 is the schematic diagram of uplink communication mouth; use RSM485CT conversion chip 3 as the uplink communication mouth; host computer server desired data information is uploaded, completed the information interaction between the intelligent electronic devices such as transformer station's Microcomputer Protection, automatics, observing and controlling and transformer station's mainframe computer system, Automation System of Power Network.
Software section of the present utility model mainly is responsible for data acquisition and processing, different communications protocol mutual.Software systems mainly comprise the functions such as the driving, embedded OS, multiple kinds, server application of hardware.Wherein server application mainly comprises: the descending host protocol example of four serial ports of initialization; Start the server mode agreement; The up slave agreement of initialization serial ports.
For downgoing communication, main by processing the downgoing communication mouth, the data of the terminal equipment that the downgoing communication mouth is articulated gather.Read the data that four conversion chips 3 return, resolve and upgrade, write operation is to up serial ports and put into the system acquisition buffering area.And be exactly to send out data on processor 1 in the host computer server for uplink communication, namely host computer is according to the data of client requests according to system uplink configuration reading system acquisition buffer district.
The agreement that the utility model adds has standard MODBUS agreement, non-standard MODBUS agreement.Protocol module in application software much much more main from realization adopted modularized design, can well satisfy the situation of a plurality of serial ports, software portability strengthens.Can increase other puppy parc, the product versatility is stronger.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as the various improvement of having adopted technical solutions of the utility model to carry out; or directly apply to other occasion without improvement, all within protection range of the present utility model.
Claims (5)
1. many serial ports controllers of multi-protocols is characterized in that: described controller is that processor (1) carries out communication with control chip (2), and control chip (2) is controlled the downgoing communication that four conversion chips (3) consist of whole controller simultaneously; The serial ports controller of processor (1) and other conversion chip (3) carry out the uplink communication that communication consists of whole controller.
2. many serial ports controllers of a kind of multi-protocols according to claim 1, it is characterized in that: described processor (1) is connected respectively to eeprom memory (4) and outer extension memory (5).
3. many serial ports controllers of a kind of multi-protocols according to claim 1 and 2, it is characterized in that: the model of described processor (1) is LPC2136.
4. many serial ports controllers of a kind of multi-protocols according to claim 1, it is characterized in that: the model of described control chip (2) is SC16C654.
5. many serial ports controllers of a kind of multi-protocols according to claim 1, it is characterized in that: the model of described conversion chip (3) is RSM485CT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616267 CN203027291U (en) | 2012-11-20 | 2012-11-20 | Multi-protocol and multi-serial-port controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616267 CN203027291U (en) | 2012-11-20 | 2012-11-20 | Multi-protocol and multi-serial-port controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027291U true CN203027291U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220616267 Expired - Fee Related CN203027291U (en) | 2012-11-20 | 2012-11-20 | Multi-protocol and multi-serial-port controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550135A (en) * | 2015-12-08 | 2016-05-04 | 国网智能电网研究院 | Realization method of replacing serial port by network port in embedded system |
-
2012
- 2012-11-20 CN CN 201220616267 patent/CN203027291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550135A (en) * | 2015-12-08 | 2016-05-04 | 国网智能电网研究院 | Realization method of replacing serial port by network port in embedded system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130626 Termination date: 20181120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |