CN1976354A - Universal industrial protocol Ethernet adapter and software thereof - Google Patents
Universal industrial protocol Ethernet adapter and software thereof Download PDFInfo
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- CN1976354A CN1976354A CN 200610118794 CN200610118794A CN1976354A CN 1976354 A CN1976354 A CN 1976354A CN 200610118794 CN200610118794 CN 200610118794 CN 200610118794 A CN200610118794 A CN 200610118794A CN 1976354 A CN1976354 A CN 1976354A
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Abstract
A universal industrial protocol Ethernet adapter is prepared as connecting external expansion storage with processor being connected to serial interface control chip and to Ethernet controller, connecting Ethernet controller to RJ 45 interface after Ethernet controller is isolated to coupled isolation filter, arranging webpage server in said adapter and setting relevant software in PC computer.
Description
Technical field
The present invention relates to a kind of universal industrial protocol Ethernet Adaptation Unit, relate to a kind of fieldbus universal industrial protocol Ethernet Adaptation Unit or rather.
Background technology
Ethernet has the high and low power consumption of transmission speed, be easy to install and the advantage of compatible aspect such as good, and it supports nearly all popular procotol.
Along with development of internet technology, Ethernet has entered the control field, has formed novel Ethernet Control Network technology, " Industrial Ethernet " technology that Here it is it has often been said.
Because the Ethernet interface chip is very general, cheap, has used Ethernet as main communication interface in many industrial communications and automation application.
Briefly, Industrial Ethernet has following advantages:
1), have numerous advantages of commercial Ethernet, as: at a high speed, open, be widely used, technology maturation etc.; 2), that instrument, the device network of the manufacturing network in the commerce Net of factory, workshop and field level is integrated;
3), in conjunction with the WEB function, make ecommerce, material supply chain and the ERP etc. of factory form unified integral body; 4), can use different physical medium such as twisted-pair feeder, coaxial cable and optical fiber to constitute different topological structures.The past Ethernet fails to enter industrial control field, mainly is because the CSMA/CD that Ethernet adopts is a kind of uncertainty or randomness communication mode, can not satisfy the place user demand of the exigent Industry Control of real-time and certainty.
But along with the continuous development of ethernet technology, its network transfer speeds improves constantly, and the network that bandwidth reaches gigabit occurred; And full duplex transmission and high speed switching technology also make the certainty of Ethernet and real-time problem be well solved, and after having overcome all deficiencies in the past, Ethernet enters the industrial circle nature, and when the water comes, a channel is formed.
The Industrial Ethernet high-speed data transmission provides enough bandwidth for system communication, and can move different host-host protocols on same bus.Because Ethernet uses for a long time, users have been very familiar to relevant software and hardware knowledge, will lack much than other bussing techniques so carry out the workload of the relevant training of Industrial Ethernet.
Widely used in the world at present Industrial Ethernet has: the Modbus TCP of HSE (Fast Ethernet), the Schneider Electric exploitation of EtherNet/IP (EIP), the FF exploitation of Rockwell Automation and ODVA exploitation and the Profinet of Siemens exploitation, they are promoted by corresponding enterprise and tissue respectively and use.
Abroad, Anybus-IC can be used as the Profibus-DP slave station, DeviceNet adapter, EtherNet/IP adapter and Modbus-TCP slave station.Complete standardized mechanical dimension, electrical design and software interface have been guaranteed interchangeability.Except Modbus-TCP and Ethernet/IP agreement, the ethernet version of Anybus-IC also comprises powerful embedded Internet characteristic.Embedded Dynamic Web Services device provides the hard drive space of 1.4M byte to download various particular Web page application programs.Can utilize Java or SSI script, adopt the ripe method of user to create the webpage of display of visuallyization and controlled function.Can dispose the E-mail client on the plate, be used for sending the email alarm of particular event.The FTP that is used for file system supports multistage visit protection.Security feature comprises user/supervisor level control and IP address limitation on the plate.
Adopting the greatest drawback of Anybus-IC exploitation adapter product is the cost height, and core code is hidden in the module, and the developer can not carry out product up-gradation.
Summary of the invention
The object of the present invention is to provide a kind of universal industrial protocol Ethernet Adaptation Unit, this adapter both can be used as independently interface product, realize the equipment access industrial Ethernet of band serial port, can be used as the integrated control system performance that promotes bus protocol, the cutting point that realizes system upgrade again, have and to carry out communication control functions such as remote data access, parameter setting and monitoring of tools by Ethernet, have good real-time and reliability.
For achieving the above object, technical scheme of the present invention is: the hardware of this adapter comprises processor, network controller chip, outer extension memory, serial ports control chip, coupling separation filter, DB9 joint.
Processor is carried out various software protocols and controlled function as the control core of adapter;
The outer extension memory chip is used to deposit RTOS (Real Time Operation System), application program and web page files.
What serial communication protocol adopted is the Modbus agreement.
The present invention has adopted CIP (Common Industrial Ptrotocol on software, universal industrial protocol) and Ethernet/IP (Ethernet/Industrial Protocol, Ethernet/industrial protocol), realize communication and controlled function to field apparatus.Ethernet/IP includes in IEC61158 and IEC61784 as one of international standard of Industrial Ethernet.With the Industrial Ethernet of other types (HSE, Modbus TCP Profinet) compares, EIP is based on standard TCP/IP, wide-open agreement, the extensive manufacturer that it can provide supports, protocol flexibility is very remarkable.
Owing to adopted consistent device access mode, can only finish the configuration of CIP equipment on the heterogeneous networks, and no longer need the software that uses manufacturer specific with a kind of configuration tool; All devices is classified with object and has been reduced the time of new product training and listing; EIP provides communication speed and bigger data packet transmission ability faster than DeviceNet and ControlNet; It is seamless integrated to the system that controlled stage arrives enterprise-level again that EIP can finish the sensor bus level with consistent Applied layer interface.We can say that the EIP technology is bound to bringing into play bigger effect in the field widely from now on.
The present invention is also embedded web page server makes the user can monitor the parameter and the state of field apparatus by browser.
For convenience product uses, and has developed configuration software at host computer, mainly finishes and carries out communication functions such as transfer of data, parameter setting and download with adapter.
Beneficial effect of the present invention: this adapter is a kind of infant industry ethernet network access product, and existing industry spot control appliance is linked in the Industrial Ethernet; It is the module that has protocol conversion and controlled function, has to carry out communication control functions such as remote data access, parameter setting and monitoring of tools by Ethernet, when being used for Industry Control, has good real-time and reliability.This product is embedded web page server makes the user can pass through IE (Internet Explorer, explorer) and visits this product, carries out the monitoring of field apparatus; Adopt 32-bit microprocessor and embedded real-time operating system,, can carry out field upgrade product function by upgrading FLASH (erasable flash memory) data.This product makes industrial field device have good interchangeability and interoperability, has application market widely in the IT application in enterprises and the system integration, and tangible economic benefit is arranged.
Below in conjunction with drawings and Examples to the present invention's detailed explanation of making comparisons.
Description of drawings
Fig. 1 is a universal industrial protocol Ethernet Adaptation Unit hardware block diagram of the present invention;
Fig. 2 is a universal industrial protocol Ethernet Adaptation Unit software architecture diagram of the present invention;
Fig. 3 is the workflow diagram of universal industrial protocol Ethernet Adaptation Unit of the present invention.
Embodiment
With reference to Fig. 1, this is a universal industrial protocol Ethernet Adaptation Unit hardware block diagram of the present invention.
As shown in the figure, adapter hardware of the present invention comprises outer extension memory 1, processor 2, network controller chip 4, serial ports control chip 3, coupling separation filter 5, RJ45 interface 6, DB9 joint 14.
Processor is carried out the realization and the controlled function of various software protocols as the control core of adapter; The outer extension memory chip is used to deposit RTOS, application software and web page files.
Relation between the said structure spare: outer extension memory 1 is interconnected with processor 2, processor 2 is interconnected with serial ports control chip 3, serial ports control chip 3 is interconnected with DB9 joint 14, processor 2 is interconnected with ethernet controller (AX88796BLI) 4, and ethernet controller (AX88796BLI) 4 is isolated the back, is interconnected with RJ45 interface 6 with coupling separation filter 5.
Above-mentioned adapter contains web page server.
Described outer extension memory 1, employing be the industrial level chip of FLASH (SST 39VF1601) and RAM (IS61LV25616AL).Because embedded real-time operating system and ICP/IP protocol have been adopted in product software design, to the having relatively high expectations of ram space, need very large space, during operation so extended out a slice sram chip; For storage code and configuration information, also extended out a slice FLASH chip.
Described processor 2, the present invention adopts arm processor.Select arm processor for use, because it is that internal resource is abundant, 32 fast arm processors of processing speed.ARM provides the microprocessor and the System on Chip/SoC scheme of a series of kernels, system expansion.Be widely used at present the higher built-in field of various performance requirements.
Described serial ports control chip 3, employing be control chip 75LS176, the RS485 agreement of use is used very extensive in present both at home and abroad field apparatus.
Described too net controller 4, employing be network controller chip: AX88796BLI.
Need to prove that another embodiment can use following proposal:
Coupling separation filter 5, RJ45 interface 6 can be replaced with the RJ45 interface of an integrated filter in Fig. 1 hardware block diagram;
Serial ports control chip 3 can replace the serial ports of DB9 joint and field apparatus to communicate with the joint of RJ45 form;
The memory chip that extends out can adopt the FLASH (SST 39VF1601) and the RAM (IS61LV25616AL) of class of trade temperature, and when operational environment was better, equipment still can operate as normal.
With reference to Fig. 2, this is an adapter software structured flowchart of the present invention.
As shown in the figure, software configuration comprises application program (CIP, HTTP), Transmission Control Protocol, udp protocol, IP agreement (ARP agreement, ICMP agreement), RTOS kernel, driver.
The TCP/IP software module has made full use of mechanism such as communication between multi-task mechanism that embedded OS provided and the task and mutual exclusion, makes the complex mechanism in the ICP/IP protocol be able to simply, clearly realize.RTOS is in charge of system resource and task and interrupt response etc.The software lowermost layer is a device driver, and the relation of it and hardware is the closest, directly drives hardware.Adopt RTOS can make that embedded product is more reliable, the construction cycle is shorter, can simplify development of embedded application, guarantee the stability and the reliability of product effectively, be convenient to safeguard and secondary development.
Embedded OS is a kind of support embedded system applied operating system software, it is the very important part of embedded system (comprising the hardware and software system), generally includes hardware-related bottom layer driving software, system kernel, device drives interface, communication protocol, graphical interfaces, standardization browser etc.Embedded OS has the basic characteristics of the general-purpose operating system, as can effectively managing the system resource that becomes increasingly complex; Can make hardware virtualization the developer from busy driver is transplanted and safeguarded, free; Built-in function, driver, tool set and application program can be provided.
In order to read and to change device parameter, in equipment, also realized the function of flush type WEB server by Ethernet.
With reference to Fig. 3, this is an adapter software workflow diagram of the present invention.
As shown in the figure, the workflow of universal industrial protocol Ethernet Adaptation Unit is as follows: when adapter when operation energising, [initiating hardware and memory] 7, to product all hardware chip register power on or reset after carry out initial work; Enter [Ethernet data transmitting-receiving] 8, receive and send the Ethernet data bag; To [TCP/UDP protocol analysis] 9, to receiving and data to be sent are resolved and packed; To [Ethernet/IP protocol analysis] 10, to carrying out the packing data work of EtherntIP protocol layer to the data that the TCPIP protocol layer transmits, simultaneously also can be to resolving from the data of TCPIP protocol layer; [web page server] 11 according to the request msg of receiving from the TCPIP protocol layer, after the parsing, constructs web page files and delivers to the TCPIP protocol layer, so that the user checks by the IE browser; [Modbus protocol analysis] 12 carries out the Modbus protocol packing to the data of coming out through EtherntIP protocol analysis module parses; [serial data transmitting-receiving] 13 after field apparatus sends request msg, receives the response data of field apparatus, and gives Modbus protocol process module.
Though the present invention describes with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is used for illustrating the present invention; should understand wherein and can do the art personnel; will be appreciated that above embodiment is used for illustrating the present invention; should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense; so be not as limitation of the invention; as long as in connotation scope of the present invention, to the variation of above-described embodiment, the protection range that distortion all will fall into claim of the present invention.
Claims (8)
1. universal industrial protocol Ethernet Adaptation Unit, be used for industrial control system, it is characterized in that: described adapter comprises outer extension memory (1), processor (2), network controller chip (4), serial ports control chip (3), coupling separation filter (5), RJ45 interface (6), DB9 joint (14);
Relation between the said structure spare is: outer extension memory (1) is interconnected with processor (2), processor (2) is interconnected with serial ports control chip (3), serial ports control chip (3) is interconnected with DB9 joint (14), processor (2) is interconnected with ethernet controller (AX88796BLI) (4), ethernet controller (AX88796BLI) (4) is isolated the back, is interconnected with RJ45 interface (6) with coupling separation filter (5);
Above-mentioned adapter contains web page server, and is equipped with corresponding software in PC.
2, universal industrial protocol Ethernet Adaptation Unit according to claim 1, it is characterized in that: described outer extension memory (1), what adopt is FLASH, RAM chip, because adapter needs very large space, has therefore extended out a slice sram chip and a slice FLASH chip.
3, universal industrial protocol Ethernet Adaptation Unit according to claim 1 is characterized in that: described processor (2), and selected for use internal resource abundant, 32 arm processors that processing speed is fast.
4, universal industrial protocol Ethernet Adaptation Unit according to claim 1 is characterized in that: described ethernet controller (4), employing be network controller chip AX88796BLI.
5, universal industrial protocol Ethernet Adaptation Unit according to claim 1 is characterized in that: described serial ports control chip (3), employing be 75LS176.
6, universal industrial protocol Ethernet Adaptation Unit according to claim 1 is characterized in that: be equipped with corresponding software in the described PC, comprise application program, Transmission Control Protocol, udp protocol, IP agreement, RTOS kernel, driver.
7, according to claim 1 or 6 described universal industrial protocol Ethernet Adaptation Units, it is characterized in that: described IP agreement comprises ARP agreement, ICMP agreement.
8, universal industrial protocol Ethernet Adaptation Unit according to claim 1, it is characterized in that: data flow between described software module, the steps include: [initiating hardware and memory] 7, to product all hardware chip register power on or reset after carry out initial work; Enter [Ethernet data transmitting-receiving] 8, receive and send the Ethernet data bag; To [TCP/UDP protocol analysis] 9, to receiving and data to be sent are resolved and packed; To [Ethernet/IP protocol analysis] 10, to carrying out the packing data work of EtherntIP protocol layer to the data that the TCPIP protocol layer transmits, simultaneously also can be to resolving from the data of TCPIP protocol layer; [web page server] 11 according to the request msg of receiving from the TCPIP protocol layer, after the parsing, constructs the webpage web page files and delivers to the TCPIP protocol layer, so that the user checks by the IE browser; [Modbus protocol analysis] 12 carries out the Modbus protocol packing to the data of coming out through EtherntIP protocol analysis module parses; [serial data transmitting-receiving] 13 after field apparatus sends request msg, receives the response data of field apparatus, and gives Modbus protocol process module.
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| CN 200610118794 CN1976354A (en) | 2006-11-28 | 2006-11-28 | Universal industrial protocol Ethernet adapter and software thereof |
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| CN 200610118794 CN1976354A (en) | 2006-11-28 | 2006-11-28 | Universal industrial protocol Ethernet adapter and software thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012071870A1 (en) * | 2010-11-30 | 2012-06-07 | 中兴通讯股份有限公司 | Optical network unit terminal and passive optical network system |
| CN104486341A (en) * | 2014-12-19 | 2015-04-01 | 重庆川仪自动化股份有限公司 | Data conversion processing method, device and system |
| CN107517225A (en) * | 2017-09-30 | 2017-12-26 | 北京东土军悦科技有限公司 | A kind of method for converting protocol, gateway device and storage medium |
-
2006
- 2006-11-28 CN CN 200610118794 patent/CN1976354A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012071870A1 (en) * | 2010-11-30 | 2012-06-07 | 中兴通讯股份有限公司 | Optical network unit terminal and passive optical network system |
| CN104486341A (en) * | 2014-12-19 | 2015-04-01 | 重庆川仪自动化股份有限公司 | Data conversion processing method, device and system |
| CN104486341B (en) * | 2014-12-19 | 2018-04-20 | 重庆川仪自动化股份有限公司 | The method, apparatus and system of data conversion treatment |
| CN107517225A (en) * | 2017-09-30 | 2017-12-26 | 北京东土军悦科技有限公司 | A kind of method for converting protocol, gateway device and storage medium |
| CN107517225B (en) * | 2017-09-30 | 2020-06-05 | 北京东土军悦科技有限公司 | Protocol conversion method, gateway equipment and storage medium |
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Open date: 20070606 |