CN103454981A - Embedded multiple master-slave Modbus controller - Google Patents
Embedded multiple master-slave Modbus controller Download PDFInfo
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- CN103454981A CN103454981A CN2012101695174A CN201210169517A CN103454981A CN 103454981 A CN103454981 A CN 103454981A CN 2012101695174 A CN2012101695174 A CN 2012101695174A CN 201210169517 A CN201210169517 A CN 201210169517A CN 103454981 A CN103454981 A CN 103454981A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses an embedded multiple master-slave Modbus controller which is developed according to existing embedded system technology. On the basis of a Samsung S3C6410X hardware platform and an embedded Linux operation system, an N:M multiple master-slave control mode is expanded to overcome defects of a one-master multiple-slave control mode. Further, a serial-port time-sharing control strategy with functions of automatically analyzing protocols, automatically saving operating logs, manually configuring serial ports and the like is researched and developed; furthermore, according to an embedded light database Sqlite, storage and reading of the operating logs and configuration data are completed; by the aid of an embedded open-source Web Servicer software platform boa, an embedded web server is built as a human-computer interactive interface of the Modbus controller so as to realize operations of viewing the operating logs, configuring serial port numbers and the like.
Description
Technical field
The present invention relates to a kind of embedded many principals and subordinates Modbus bus controller, be applied to industrial control field.
Background technology
The Modbus bus is applied very extensive in centralized control system, but the control mode of its one master and multiple slaves has also been brought much inconvenience, especially in completed system, adding multimachine to control can't realize especially, crash or repeated priming even add by force also to bring, more can't realize massive dataflow mutual (as mutual as the real time data of controlling between computing machine and field apparatus).
Summary of the invention
For above-mentioned defect, the Modbus procotol bus under the RS485 hardware environment is the host-guest architecture bus, has proposed the implementation method of many master-slave modes.
The present invention utilizes existing embedded system technology, has developed embedded many principals and subordinates Modbus bus controller.This controller is based on Samsung S3C6410X hardware platform and built-in Linux operating system, for main many control Defect expandings many master-slave control methods of N: M.On this basis, independent research a set of serial ports timesharing control strategy, possess the functions such as automatic analysis agreement, autosave operation daily record, manual configuration serial ports.In conjunction with embedded light-duty database Sqli te, the storage of complete operation daily record and configuration data with read.And, in conjunction with the embedded Web Server software platform boa that increases income, build the Man Machine Interface of embedded web server as the Modbus bus controller, and to realize checking Operation Log, the settings such as configuration string slogan.
Modbus bus controller of the present invention mainly is connected with many serial ports by embedded-type ARM 6410 core boards, realize that the Modbus bus system of single master-slave control method becomes the Modbus bus system of complete many master-slave control methods, more can realize that main frame is by the data interaction of Ethernet and bus, and realize the monitoring of the data interaction on the Modbus bus.The ARM system is passed through human-computer interaction interface, the number of configuration master controller, corresponding hardware end slogan, distribute corresponding data buffer (minute reception area and sending area), distribute respective ends slogan and control word simultaneously, comprise baud rate, data characteristics, reiving/transmitting state etc.Set the monitoring buffer zone simultaneously.System sequentially judges the source that receives data according to the reiving/transmitting state table, data are delivered to Modbus bus and monitoring buffer zone.Then receive the validity of packet by analyzing the agreement judgement, if effectively, wait for and receive data, if invalid, return.Finally will receive data and deliver to corresponding data transmission buffer zone.
Beneficial effect of the present invention has: utilize existing embedded system technology, realized embedded many principals and subordinates Modbus bus controller, filled up the vacancy in market; Measured Modbus Realization analysis function, can online mode analyze the Modbus network in whole service; The use of built-in Linux operating system, contribute to the upgrading of the abundant and product of function; Embedded server boa sets up, and only checking of analytical structure need to utilize the web browser on host computer, can check in this locality, also can long-rangely check, makes man-machine interaction mode very flexible and convenient.
The accompanying drawing explanation
The embedded many principals and subordinates Modbus of Fig. 1 bus controller hardware structure diagram
The embedded many principals and subordinates Modbus of Fig. 2 bus controller software flow pattern
Embodiment
The specific embodiment of the present invention is described by reference to the accompanying drawings, as Fig. 1, Fig. 2, Modbus bus controller of the present invention mainly is connected with many serial ports by embedded-type ARM 6410 core boards, realize that the Modbus bus system of single master-slave control method becomes the Modbus bus system of complete many master-slave control methods, more can realize that main frame is by the data interaction of Ethernet and bus, and realize the monitoring of the data interaction on the Modbus bus.The ARM system is passed through human-computer interaction interface, the number of configuration master controller, corresponding hardware end slogan, distribute corresponding data buffer (minute reception area and sending area), distribute respective ends slogan and control word simultaneously, comprise baud rate, data characteristics, reiving/transmitting state etc.Set the monitoring buffer zone simultaneously.System sequentially judges the source that receives data according to the reiving/transmitting state table, data are delivered to Modbus bus and monitoring buffer zone.Then receive the validity of packet by analyzing the agreement judgement, if effectively, wait for and receive data, if invalid, return.Finally will receive data and deliver to corresponding data transmission buffer zone.
Claims (2)
1. embedded many principals and subordinates Modbus bus controller is characterized in that: it comprises control procedure and the communication modes of realization;
2. embedded many principals and subordinates Modbus bus controller according to claim 1, it is characterized in that: it realizes the monitoring mutual to the Modbus bus data by Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101695174A CN103454981A (en) | 2012-05-29 | 2012-05-29 | Embedded multiple master-slave Modbus controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101695174A CN103454981A (en) | 2012-05-29 | 2012-05-29 | Embedded multiple master-slave Modbus controller |
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| CN103454981A true CN103454981A (en) | 2013-12-18 |
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| CN2012101695174A Pending CN103454981A (en) | 2012-05-29 | 2012-05-29 | Embedded multiple master-slave Modbus controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104580187A (en) * | 2014-12-31 | 2015-04-29 | 厦门为那通信科技有限公司 | Method for achieving interaction of external devices of different MODULEBUS protocols and server |
| CN107465576A (en) * | 2017-08-23 | 2017-12-12 | 江苏舾普泰克自动化科技有限公司 | A kind of more host communication system and methods based on Modbus agreements |
| CN111679611A (en) * | 2020-06-24 | 2020-09-18 | 航天新长征大道科技有限公司 | Modbus bus controller and control method thereof |
-
2012
- 2012-05-29 CN CN2012101695174A patent/CN103454981A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104580187A (en) * | 2014-12-31 | 2015-04-29 | 厦门为那通信科技有限公司 | Method for achieving interaction of external devices of different MODULEBUS protocols and server |
| CN104580187B (en) * | 2014-12-31 | 2018-09-04 | 厦门为那通信科技有限公司 | A method of realizing that the external device of different MODULEBUS agreements is interacted with server |
| CN107465576A (en) * | 2017-08-23 | 2017-12-12 | 江苏舾普泰克自动化科技有限公司 | A kind of more host communication system and methods based on Modbus agreements |
| CN111679611A (en) * | 2020-06-24 | 2020-09-18 | 航天新长征大道科技有限公司 | Modbus bus controller and control method thereof |
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Owner name: JIANGSU LANSWON SYSTEM INTEGRATION CO., LTD. Free format text: FORMER OWNER: SUZHOU HUIYUNDING INFORMATION SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20140613 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huo Jianjun Inventor after: Xia Chaobin Inventor before: Huo Jianjun Inventor before: Yang Jun Inventor before: Xia Chaobin |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUO JIANJUN YANG JUN XIA CHAOBIN TO: HUO JIANJUN XIA CHAOBIN Free format text: CORRECT: ADDRESS; FROM: 215000 SUZHOU, JIANGSU PROVINCE TO: 214125 WUXI, JIANGSU PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20140613 Address after: Xuelang Street Melia Binhu District in Jiangsu province 214125 Ze road Wuxi City No. 28 Software Science Park B District No. 7 Applicant after: Jiangsu LANSWON System Integrated Co., Ltd. Address before: 239, building 12, building 5, Castle Peak Road, hi tech Zone, Jiangsu, Suzhou, 215000 Applicant before: Suzhou Huiyunding Information Science & Technology Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |