CN204481848U - Industrial field bus MPR - Google Patents
Industrial field bus MPR Download PDFInfo
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- CN204481848U CN204481848U CN201520217810.2U CN201520217810U CN204481848U CN 204481848 U CN204481848 U CN 204481848U CN 201520217810 U CN201520217810 U CN 201520217810U CN 204481848 U CN204481848 U CN 204481848U
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Abstract
The utility model provides a kind of industrial field bus MPR, comprise main control chip, EEPROM and multiple communication link, described EEPROM is connected with described main control chip, described multiple communication link is all connected with described main control chip, described multiple communication link has a PORT COM respectively, this industrial field bus MPR builds a more agreement of compatibility, and provide software and hardware all can secondary increment exploitation form, realize interconnecting between various isomate, the application realizing interconnecting fast for various needs provides effective guarantee for implement.
Description
Technical field
The utility model relates to Internet of Things conversion technology of information field, particularly relates to a kind of industrial field bus MPR.
Background technology
Along with the height of information technology and industrial technology merges, the degree of depth of network, computer technology, information technology, software and automatic technology interweaves and produces new value models.In manufacture field, this resource, information, article and people are mutually related " virtual network-entity physical system (Cyber-PhysicalSystem; CPS) ", and German is called " industry 4.0 ", and the concept of the U.S.'s also corresponding proposition " industry internet ".No matter be which kind of situation, the foundation stone all will interconnected as its system without exception, its marrow is the maximization of Network stretch, and get through product, pin times superintends and directs two groups, production and marketing information integrates communication fast, makes wisdom factory.From factory's angle, wisdom factory is not only and reaches factory automation, remote monitoring processing procedure, guarantee that production is smooth and easy, manufacturer also can be assisted to integrate the raw pipe of each factory, property management and storekeeper, the demand of real-time deploying production capacity and scale, avoid busy at putting up installations after, improve production capacity rapidly simultaneously, meet the real-time Production requirement of customized order.Can not dare not or would not speak up, field bus communication agreement is let a hundred schools contend, and Industrial Ethernet network not a duck soup built by cloth, and in addition, making wisdom factory must based on existing equipment, system.Current factory automation market by large factories of industrial automation such as Siemens (Siemens), Rockwell (Rockwell), Beckhoff dominate, these large factories are through long-term reliability and stability checking, this ecology unlikely changes, and the network protocol standard that therefore Industrial Ethernet network uses just needs at least to be compatible with the multiple kinds such as PROFINET, PROFIBUS, EtherNet/IP, DeviceNet, EtherCAT that these large factories formulate.It is not but that part is easy to thing that numerous intelligent cells will be allowed at present to be interconnected, because there is too many standard and agreement, the communication modes of already present various product of a specified duration and interface may be completely different according to different producers, even if reject the factor of the aspects such as price, the compatibility of product communication is also problematic.
The actual conditions of industry are that multiple bus coexists, if count some corresponding less buses in interior, at least also must have 40 kinds, often kind of bus has its reasons for its use and application, and the automation demand of different field respectively has its feature again.Wherein more famously comprise Profibus/Profinet, EtherCAT, Ethernet/IP, WorldFIP, CC-LINK, Devicenet, FF, LonWorks, ControlNet, SERCOS_III etc.
Often kind of bus all with enterprise or alliance as support, have plenty of with one or several large multinational company for background, thus the interests of company and the development of bus closely bound up.Due to factors such as interests driving and competitions, the bus that a lot of external major company is issued is embedded in the product of oneself, less consideration other bus compatible.Or provide bus application product in the form of an asic, expensive, technology is closed.Typical case is as Profibus/Profinet, CC-LINK etc.
Due to development and the current demand of the Internet and Internet of Things, a large amount of smart machines faces the requirement of interconnecting.The data of checking can find, these famous industrial field bus, all incompatible Ethernet popular at present of great majority, let alone " TCP/IP " of being seen everywhere.Under the overall background of " industry 4.0 " and " industry internet ", be necessary very much to design a kind of multiprotocol conversion router, information can be made to transmit between the unit adopting different industrial protocol.
Utility model content
The technical problems to be solved in the utility model is: the present situation generally adopting multiple bus protocol for current industry internet, the utility model provides a kind of industrial field bus MPR and builds a more agreement of compatibility, realize interconnecting between various isomate, the application realizing interconnecting fast for various needs provides effective guarantee for implement.
The utility model solves the technical scheme that its technical problem adopts: a kind of industrial field bus MPR, comprise main control chip, EEPROM and multiple communication link, described EEPROM is connected with described main control chip, described multiple communication link is all connected with described main control chip, and described multiple communication link has a PORT COM respectively.
As low speed plate, described multiple communication link comprises RS232 link, RS485 link, RS422 link, Modbus link, CAN link, Profibus link and 100M ethernet link, and described main control chip is Cortex-A8 chip.
As high speed plate, described multiple communication link comprises EtherCAT link, Ethernet/IP link, Profinet link, SERCOS_III link, NTCIP link, CC-LINK link, and described main control chip is Cortex-A8 chip.
As input and output plate, described multiple communication link comprises I/O link, and A/D samples link, and eCAP link, PWM link and LCD/LED link, described main control chip is dsp chip.
Bluetooth and WIFI are designed to independent secondary module, described main control chip is connected with bluetooth communication module and/or WIFI communication module by SPI or UART serial ports, described main control chip is also connected with at least one road SPI or CAN port, for the communication between plural industrial field bus MPR.
The beneficial effects of the utility model are, this industrial field bus MPR builds a more agreement of compatibility, and provide software and hardware all can secondary increment exploitation form, realize interconnecting between various isomate, the application realizing interconnecting fast for various needs provides effective guarantee for implement, it integrates existing most communication link and agreement, supports the automatic route conversion between different agreement, guarantees interconnecting between heterogeneous networks.It not only comprises the function of network node, also has abundant input/output function and the support of good software secondary development.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the low speed plate of the utility model industrial field bus MPR.
Fig. 2 is the structural representation of the high speed plate of the utility model industrial field bus MPR.
Fig. 3 is the structural representation of the input and output plate of the utility model industrial field bus MPR.
Fig. 4 is the structural representation of the combined plate of the utility model industrial field bus MPR.
Fig. 5 is the schematic diagram of the mapping table of the utility model multi-protocols static mappings transformation approach.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.On the contrary, embodiment of the present utility model comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
In description of the present utility model, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of preferred implementation of the present utility model comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiment person of ordinary skill in the field of the present utility model.
The utility model provides a kind of industrial field bus MPR, comprise main control chip, EEPROM and multiple communication link, EEPROM is connected with main control chip, and multiple communication link is all connected with main control chip, and multiple communication link has a PORT COM respectively.
As shown in Figure 1, low speed plate is the slow network for those non-Ethernets and above bandwidth level, so as low speed plate, multiple communication link comprises RS232 link, RS485 link, RS422 link, Modbus link, CAN link and Profibus link, Ethernet with current popular most due to industrial field bus is also incompatible, therefore low speed plate also at least arranges a 100M ethernet link, and main control chip is Cortex-A8 chip; Combine based on cost and practical characteristic, other slow network can be added as required as add-on assemble, and the peripheral interface that Cortex-A8 chip provides is more, as two-way CAN, 6 road UART serial ports, two-way SPI, two-way USBOTG, two-way 100M Ethernet interface etc., operational capability and speed stronger, meet industrial scale applications requirement, based on the needs of secondary development, effective pin as much as possible will be drawn.
As shown in Figure 2, same conduct high speed plate, multiple communication link comprises EtherCAT link, Ethernet/IP link, Profinet link, SERCOS_III link, NTCIP link, CC-LINK link, industrial bus and our common the Internet can be connected like this, main control chip is Cortex-A8 chip, it two network interfaces can meet the application requirement of such as EtherCAT.
As shown in Figure 3, input and output plate refers to for field control device action or sampled data, multiple communication link comprises I/O link, A/D samples link, eCAP link, PWM link and LCD/LED link, main control chip is TITMS320F28335 floating type dsp chip, dsp chip has superpower calculating and control ability, even can the complicated applications object such as high accuracy and high performance control such as motor.
No matter be low speed plate, high speed plate or input and output plate, bluetooth and WIFI are designed to independent secondary module, main control chip is connected with bluetooth communication module and/or WIFI communication module by SPI or UART serial ports, and bluetooth and WIFI adopt CC2540 and CC3200; Main control chip is also connected with at least one road SPI or CAN port, for the communication between plural industrial field bus MPR; As shown in Figure 4, above plate support combinationally uses, to realize exchange and the interconnection of different agreement, information exchange can be carried out by high speed serial communication mode (CAN) between them, at a high speed and in low speed plate, main control chip supports two-way Ethernet interface simultaneously, two kinds of high-speed buses based on Ethernet medium can be integrated on one piece of plank, be conducive to reducing costs and raising efficiency.
As shown in Figure 5, a kind of multi-protocols static mappings transformation approach based on industrial field bus MPR, comprises the following steps:
S1, corresponding protocol stack is configured according to the bus type of each communication link, protocol stack comprises bus protocol at a high speed, such as EtherCAT, Ethernet/IP, Profinet, based on the Modbus etc. of Ethernet, also the such as Profibus of low speed sections is comprised, the contents such as CanOpen, for the purpose of unification, we are by digital I/O, A/D, PWM etc. are also considered as the coverage of protocol stack, protocol entity refers to the appellation of the example that each agreement specific realizes on product, referred to as port, therefore I/O, A/D, the input and output such as PWM also belong to the category of port, such design can make user realize from certain I/O performance element or the motor EtherCAT network directly control CANopen, in order to simplify and realize static mappings mode, need to distribute concrete initial sum termination address to each PORT COM, this address space is called data space, data space is divided into read and write two parts, be specially female address that each industrial field bus MPR distributes 6, for each PORT COM distributes the subaddressing (addressing space 13 of 10, namely each plate can have at most 8192-1 port, 0 is assigned to Broadcast Port), female address and subaddressing just represent unique gateway of each PORT COM, then logical start address=((<<10+ subaddressing, the female address) <<16) of PORT COM, and then distribute reading data space and the write data space of port, due to the continuity of address assignment, therefore, can not be overlapping between the data space of each PORT COM, the data space of all PORT COM forms the logical space of a non-overlapping copies, and its addressing range is 32,
S2, distribute an allocation list for each PORT COM, allocation list comprises agreement UID corresponding to PORT COM, protocol name (such as EtherCAT), agreement status (master/slave), data type differentiations such as () such as step-by-step, byte, streams, female address, subaddressing, reading data space, write data space and protocol action instruction set;
S3, adopt the PORT COM of different bus type to set up intermediary's table for every two, intermediary's table comprises source protocol UID, target protocol UID, protocol action executing rule, verification scheme and error reporting module;
S4, by static mappings, communication data is converted to agreement B from agreement A: adopt the PORT COM A of agreement A as source port, adopt the PORT COM of agreement B as target port, call the allocation list A that PORT COM A and PORT COM B is corresponding, allocation list B and intermediary Table A-B, first-selection verifies communication data according to verification scheme, if communication data is defective, stops static mappings and fed back by error reporting module, if communication data is qualified, from the protocol action instruction set A allocation list A, finds the action command of the protocol action executing rule A-B met in intermediary Table A-B according to the virtual condition of communication data and implemented, thus the communication data in the reading data space of source port is mapped in the write data space of target port.
Low speed plate, high speed plate and input and output plate can be used alone, also can integratedly use, the latter needs communication between plate to complete collaborative work, although on hardware, leave unnecessary SPI and CAN port can use, but consider the problems such as anti-interference, concurrent interference, efficiency, adopt CAN as the link of communication between plate, realize the communication between two industrial field bus MPRs by following steps, wherein two industrial field bus MPRs are respectively active plate and target plate:
S5, first by static mappings by the data-mapping in the source port of active plate on the CAN port of active plate, then being identified by 29 ID transfers data on the CAN port of target plate, wherein in 29 ID, 6 female addresses as active plate, 10 CAN port subaddressings as active plate, 6 female addresses as target plate, all the other retain; The interval 0x000-0x00f of initial address of low speed plate, the initial address of high speed plate is 0x010-0x01f, and input and output plate is 0x020-0x02f.Such as describe the form that each passages such as EtherCAT port, serial ports, I/O port should use the female address+subaddressing of plate, subaddressing is 0 expression plate itself, not for concrete port;
In fact, all comprise the repository of current use in every block plate, in this repository, pointed out the corresponding relation of ID position and plate parameter, the configuration relation etc. of the plate that such as certain ID represents.Between plate, communication comprises physical layer, data link layer and network layer, and between plate, the data interpretation of communication is then responsible for by application layer.The data effective length of each communication of CAN is 8 bytes.Front 2 bytes are taken by agreement, and actual effective length is 6 bytes, in the first two byte, and high 3 representative frame types of first character joint, rear 10 port subaddressings representing target plate.Therefore, every block plate can have 1023 port subaddressings can supply to distribute.
Frame is divided into single frames (SF), the first frame (FF), successive frame (CF), control frame (FC) and announcement frame (AF).If transmit data <=6 byte, then directly send single frames; If >6, then send the first frame, the first frame contains the data length sent out and send, and receiving terminal now should return current receivable maximum cushioning length, transmit leg, will by continuing after 6 bytes, one group of partition data to send once receive this buffer length; Except not all data are sent, otherwise Current buffer length then continues after being sent, wait control frame is to obtain the follow-up buffer length sent.According to above specification, high 3 types always representing frame of the first character of valid data joint.Therefore, SF=0, FF=1, CF=2, FC=3, AF=4; Announcement frame AF usually inquires about or broadcasts the self information of plate.Such as, whether plate supports EtherCAT, Profinet etc.
Although the conversion of static mappings to some extent solves the problem of exchanges data between agreement, but in the occasion that some are much complicated a little in other words, its function just seems awkward.The core of protocol conversion is explanation and the exchange of valid data.Therefore adopt the dynamic mode different from static schema to change agreement, i.e. a kind of multi-protocols dynamic mapping transformation approach based on industrial field bus MPR, comprises the following steps:
R1, configure corresponding protocol stack according to the bus type of each communication link, for each industrial field bus MPR distributes female address of 6, for each PORT COM distributes the subaddressing of 10, then logical start address=((<<10+ subaddressing, the female address) <<16) of PORT COM, and then the reading data space and the write data space that distribute port;
R2, distribute an allocation list for each PORT COM, allocation list comprises agreement UID corresponding to PORT COM, protocol name, agreement status, data type, female address, subaddressing, reading data space, write data space and protocol action instruction set;
R3, set up action executing engine, action executing engine comprises remote command engine, BASIC engine and PLC engine.
R4, by dynamic mapping, communication data is converted to agreement B from agreement A: adopt the PORT COM A of agreement A as source port, adopt the PORT COM of agreement B as target port, call PORT COM A and PORT COM B corresponding allocation list A and allocation list B, the communication data in the reading data space of source port is mapped in the write data space of target port by action executing engine according to the virtual condition of communication data by user.
In dynamic mapping, intermediary's table does not re-use, replace and adopt the control mode of action executing engine to exchange, the data space configured in remote command engine, BASIC engine and all read-write allocation list of this Three models of PLC engine, so just provide the switch mode of data space to greatest extent, thus reach the object of protocol conversion.Remote command engine comprises self-defining neutrality order, and network layer is positioned at application layer, has nothing to do with bottom transmission medium.Current design is taken into account input/output register and is manipulated.The explanation of the implication of register is then confirm according to the allocation list in the utility model, the value of 11 registers of such as 00001-0000B is likely the standard frame data being sent to CAN network, also may be the data of write plate memory space, its version be as follows:
Source address (4 byte)+destination address (4 byte)+configuration parameter (2 bytes)+valid data byte number+valid data initial address+data ...+CRC check (2 byte);
Configuration parameter has 0-15 position altogether; Low 0 shows whether send receipt, and=1 requires to send receipt; Most-significant byte shows operator scheme, namely can have 256 kinds of operator schemes altogether.The another one reason that remote command engine exists is the application scenario needing to take into account other non-industrial field bus a lot, such as, close certain motor or switch from internet, or be forwarded to serial ports etc.; The category of language of BASIC engine belongs to a subset of ANSIX3.113-1987.There is in BASIC engine the handling function of various protocol conversion, comprise the read-write etc. reading, revise and write communication between protocol data space, the state (as available, pending, length etc.) of vlan query protocol VLAN data, plate; The basic compatible Mitsubishi PLC specification of PLC engine, unlike, there is provided part self-defined statement specification for protocol conversion, comprising the read-write of communication and the status contacts (as source data arrives, is sent) of different agreement between the status poll (as available, pending, length etc.) of protocol data, plate.
BASIC engine and PLC engine are divided into host computer engine and slave computer engine, and host computer engine is mainly used for the writing of program of lower computer, emulates and remote download, and slave computer engine is then specifically perform the program downloaded; Allocation list, intermediary's table and working procedure (remote command, BASIC, PLC) etc. leave in the EEPROM in host computer and slave computer plate, and such arrangement is conducive to Remote configuration and maintenance from now on, more convenient in management;
Similar with the step S5 of multi-protocols static mappings transformation approach, realize the communication between two industrial field bus MPRs by following steps, wherein two industrial field bus MPRs are respectively active plate and target plate:
R5, first by dynamic mapping by the data-mapping in the source port of active plate on the CAN port of active plate, then being identified by 29 ID transfers data on the CAN port of target plate, wherein in 29 ID, 6 female addresses as active plate, 10 CAN port subaddressings as active plate, 6 female addresses as target plate, all the other retain.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of described term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. an industrial field bus MPR, it is characterized in that: comprise main control chip, EEPROM and multiple communication link, described EEPROM is connected with described main control chip, described multiple communication link is all connected with described main control chip, and described multiple communication link has a PORT COM respectively.
2. industrial field bus MPR as claimed in claim 1, it is characterized in that: described multiple communication link comprises RS232 link, RS485 link, RS422 link, Modbus link, CAN link, Profibus link and 100M ethernet link, described main control chip be Cortex ?A8 chip.
3. industrial field bus MPR as claimed in claim 1, it is characterized in that: described multiple communication link comprise EtherCAT link, Ethernet/IP link, Profinet link, SERCOS_III link, NTCIP link, CC ?LINK link, described main control chip be Cortex ?A8 chip.
4. industrial field bus MPR as claimed in claim 1, is characterized in that: described multiple communication link comprises I/O link, and A/D samples link, and eCAP link, PWM link and LCD/LED link, described main control chip is dsp chip.
5. the industrial field bus MPR as described in any one of Claims 1 to 4, it is characterized in that: described main control chip is connected with bluetooth communication module and/or WIFI communication module by SPI or UART serial ports, described main control chip is also connected with at least one road SPI or CAN port, for the communication between plural industrial field bus MPR.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734980A (en) * | 2015-04-10 | 2015-06-24 | 常州多维信息科技有限公司 | Industrial field bus multi-protocol router and multi-protocol conversion method |
| CN108566262A (en) * | 2018-02-12 | 2018-09-21 | 上海航天电子有限公司 | A kind of satellite test data comparison method for Cortex data formats |
| CN109587150A (en) * | 2018-12-11 | 2019-04-05 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of WiFi turns the integrated interface circuit of Ethernet serial ports |
| CN109725575A (en) * | 2018-12-27 | 2019-05-07 | 南京熊猫电子股份有限公司 | The application system of compatible adaptive various field industrial bus communication |
| CN110191101A (en) * | 2019-05-09 | 2019-08-30 | 东风柳州汽车有限公司 | Multifunctional network connector converter |
-
2015
- 2015-04-10 CN CN201520217810.2U patent/CN204481848U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734980A (en) * | 2015-04-10 | 2015-06-24 | 常州多维信息科技有限公司 | Industrial field bus multi-protocol router and multi-protocol conversion method |
| CN108566262A (en) * | 2018-02-12 | 2018-09-21 | 上海航天电子有限公司 | A kind of satellite test data comparison method for Cortex data formats |
| CN109587150A (en) * | 2018-12-11 | 2019-04-05 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of WiFi turns the integrated interface circuit of Ethernet serial ports |
| CN109725575A (en) * | 2018-12-27 | 2019-05-07 | 南京熊猫电子股份有限公司 | The application system of compatible adaptive various field industrial bus communication |
| CN110191101A (en) * | 2019-05-09 | 2019-08-30 | 东风柳州汽车有限公司 | Multifunctional network connector converter |
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Effective date of registration: 20190917 Address after: Unit 0129, Unit 62, Chengyi North Street, Phase III, Xiamen Software Park, Fujian Province Patentee after: Xiamen Dewei Zhi Lian Technology Co., Ltd. Address before: 213164 C-505-2, Tian An Digital City, Wujin District, Jiangsu, Changzhou Patentee before: Changzhou multidimensional information Science and Technology Ltd. |
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Granted publication date: 20150715 Termination date: 20210410 |