CN201196743Y - Novel decentralized control system hardware structure - Google Patents
Novel decentralized control system hardware structure Download PDFInfo
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- CN201196743Y CN201196743Y CNU2008200586130U CN200820058613U CN201196743Y CN 201196743 Y CN201196743 Y CN 201196743Y CN U2008200586130 U CNU2008200586130 U CN U2008200586130U CN 200820058613 U CN200820058613 U CN 200820058613U CN 201196743 Y CN201196743 Y CN 201196743Y
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- master control
- xcu
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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]
Abstract
The utility model discloses a novel hardware framework for decentralized control systems. The hardware framework comprises a master control XCU and a standby XCU which are in communication link through a double-machine switching circuit, a master control switch which is in communication link respectively with the master control XCU and the standby XCU, as well as a standby switch which is in communication link respectively with the master control XCU and the standby XCU. The hardware framework also comprises a plurality of parallel I/O modules which are in communication link with the master control switch through a plurality of master control communication modules and are in communication link with the standby switch through a plurality of standby communication modules. The master control communication modules, as well as the standby communication modules are in serial connection. Due to the framework design, the hardware framework has the advantages of easy expansion and contraction, and ensures more succinct network wiring.
Description
Technical field
The utility model relates to the industrial control technology field, relates in particular to a kind of hardware structure of scattered control system.
Background technology
Along with industrial automation Process Control Theory and rapid development of computer technology, modern industrial technology has all proposed more and more high requirement to the reliability of industrial automation Process Control System, complicacy, the integrity of function, the maintainability of system, the friendly of man-machine interface, the various aspects such as the manageability analyzed of data.
At present, collecting and distributing control system has been widely used in various flow process control industries.Be accompanied by the continuous development of Industrial Ethernet technology and perfect, function is complete, reliability is high, open system is easily expanded owing to having for the DCS (scattered control system) of integrated Industrial Ethernet technology, adopted safe and reliable network communications technology, have the favor that advantage such as comprehensive and professional, that the man-machine conversation function is strong, managerial ability is strong has obtained more and more users.But because requirement, the scale of control system constantly develop, DCS also is faced with some different requirements and problems in different applications.
At present, the more common system architecture of the DCS of integrated Industrial Ethernet technology is to adopt star-like connected mode.As shown in Figure 1, a kind of star-like connected mode of scattered control system hardware structure in the prior art, adopt the Industrial Ethernet technology, three communication modules are connected respectively on the switch, carry out data interaction with XCU (distributed control module) again by switch then, thereby realized star-like connection.
But, when system scale bigger, when needing to expand more communication module node, because communication module is to be directly connected to respectively on the switch, therefore more communication module can make the quantity of switch in the total system framework, the port number and the network stube cable of switch sharply expand.Use more switch, a large amount of network stube cables not only can increase substantially the cost of The whole control system, bring difficulty also for the wiring of The whole control system, but also can make the security of total system reduce greatly.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provide a kind of be easy to expand and stretch, novel scattered control system hardware structure that network layout is more succinct.
For achieving the above object, the utility model provides a kind of novel scattered control system hardware structure, comprising: by the master control XCU and the standby XCU of double-machine switching circuit communication connection; The master control switch that is connected with described master control XCU, described standby XCU communication respectively; The backup switch that is connected with described master control XCU, described standby XCU communication respectively; Also comprise a plurality of parallel I/O modules, be connected with the communication of described master control switch and be connected with described backup switch communication by a plurality of standby communication modules by a plurality of master control communication modules; Between a plurality of described master control communication modules, be serial communication between a plurality of described standby communication module and connect.
Outstanding good ground, described master control XCU connects the first master control switch and the second master control switch respectively, first communication module in a plurality of described master control communication modules is connected with the described first master control switch, thus the master control communication link that the tail communication module in a plurality of described master control communication module and the described second master control switch are connected and constituted a linear structure.Simultaneously, described standby XCU connects first backup switch and second backup switch respectively, first communication module in a plurality of described standby communication modules is connected with described first backup switch, thereby the tail communication module in a plurality of described standby communication module is connected with described second backup switch and constituted the standby communication link of a linear structure.
In the utility model, the main effect of XCU is implementation algorithm computing and data access.The effect of communication module is that the data of each I/O module are delivered to master control XCU and standby XCU by switch, and the data distribution that export master control XCU arrives each I/O module.
Communication module adopts EtherCat Industrial Ethernet technology, and all communication modules connect to form linear structure from beginning to end.Thereby master control XCU, switch and communication module link to each other in proper order and form annular framework.Two real-time redundancy loops of the standby each other formation of annular.
Industrial Ethernet technology that the utility model is integrated has the DCS hardware systems framework that is easy to expand with expansion performance.When this framework can guarantee that the scale of Distributed Control System (DCS) expands, can not increase the quantity of switch and the port number of switch, this system architecture makes that also network layout is more succinct.
After adopting DCS system hardware architecture of the present utility model, The whole control system has two reliable redundancy real-time communication rings, and each real-time communication ring not only has the hypervelocity of 100Mbit/s, and has self diagnosis, self-recovering function.Reliable redundancy between two real-time communication rings has further increased the robustness of system architecture.The loop configuration of the high-speed real-time communication network system that makes has favorable expansibility and retractility, and this superior extendability and retractility can not make the quantity of switch, the port number of switch sharply expand along with the increase of communication node.
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Description of drawings
Fig. 1 is a star-like connection hardware configuration diagram in the scattered control system of prior art;
Fig. 2 is the hardware structure synoptic diagram of the redundant scattered control system of Crossed Circle of the present utility model;
Fig. 3 is the communication node theory diagram on the real-time communication ring.
Embodiment
Novel scattered control system hardware structure one concrete enforcement as shown in Figure 2 of the present utility model, comprise two XCU (distributed control module), be mainly used in algorithm computing and data access, the network communication of realization and engineer station or operator station and with I/O module data exchange with carry out functions such as control strategy.When actual motion, one of them is in the main control state, is master control XCU.Another is in the hot stand-by duty of tracking, is standby XCU.The connection of two equipment is finished by the double-machine switching circuit of hardware.
Comprise first, second two master control switches in the present embodiment, be connected with master control XCU, standby XCU communication respectively.Simultaneously, also comprise first, second two backup switch, be connected with master control XCU, standby XCU communication respectively.
A plurality of I/O module I/O1, I/O2 ... the I/On parallel connection is connected with the communication of master control switch and is connected with the backup switch communication by standby communication module by the master control communication module.
Communication module adopts EtherCat Industrial Ethernet technology.Its effect is that the data of each I/O module are delivered to master control XCU and standby XCU by switch, and the data distribution that export master control XCU arrives each I/O module.
Special character of the present utility model is, between the master control communication module, be connected in series between the standby communication module, head and the tail connect to form linear structure.
Specifically, first communication module in the master control communication module connected in series is connected with the first master control switch, thereby the series connection of tail communication module and the second master control switch constitutes one by link to each other the in proper order real-time master control ring of the annular framework that forms of master control XCU, master control switch and master control communication module.
Simultaneously, in the utility model, first communication module in the standby communication module connected in series is connected with first backup switch, thereby the series connection of tail communication module and second backup switch constitutes one by link to each other the in proper order standby ring of the annular framework that forms of standby XCU, backup switch and standby communication module.
Two real-time redundancy loops of the standby each other formation of annular.
As a kind of concrete application, the utility model adopts ripe at present Industrial Ethernet EtherCat technology, and this technology not only has the hypervelocity characteristic, is easy on the hardware realize.And, adopt this technology to be easy to form reliable loop network, thereby increase the reliability of DCS system hardware framework of the present utility model.
As a kind of concrete application, the utility model utilizes the network switch of 43 ports, has realized the reliable redundancy structure of Crossed Circle in conjunction with Industrial Ethernet EtherCat technology.System is when normal operating conditions, master control XCU carries out data access by the master control ring to all communication nodes, when the master control ring can not carry out data access to some or several nodes, standby ring backups to master control XCU to the data of this node, guarantees that master control XCU can carry out access to the data of all nodes reliably.
In conjunction with shown in Figure 3, in one embodiment, the 16 bit processor TMS320LF2407 that adopt TI company are as microprocessor again, and the ESC20 of employing Beckhoff company or ET1100 are as Industrial Ethernet Ethercat agreement communication controller.TMS320LF2407 has realized the application layer of EtherCat agreement, can carry out data access to the DPRAM of ESC20 or ET1100 inside by 16 parallel ports.ESC20 and ET1100 have two MII interfaces, and they have realized the data link layer of EtherCat agreement on hardware, two physical chips that extend out realized Industrial Ethernet Physical layer.The effect of network transformer is to realize isolating and impedance matching.XCU carries out read-write operation by real-time ring to each communication node, and data access speed is 100Mbit/s.
After adopting DCS system hardware architecture of the present utility model, The whole control system has two reliable redundancy real-time communication rings, and each real-time communication ring not only has the hypervelocity of 100Mbit/s, and has self diagnosis, self-recovering function.Reliable redundancy between two real-time communication rings has further increased the robustness of system architecture.The loop configuration of the high-speed real-time communication network system that makes has favorable expansibility and retractility, and this superior extendability and retractility can not make the quantity of switch, the port number of switch sharply expand along with the increase of communication node.
Should be appreciated that, in claims of the present utility model, instructions, all " comprising ... " all are interpreted as open implication, and just its implication is equal to " containing at least ... ", and should not be construed as enclosed implication, promptly its implication should not be construed " only comprising ... ".
In sum, described in this instructions is several preferred embodiment of the present utility model, and above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.All technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within claim protection domain of the present utility model.
Claims (3)
1. novel scattered control system hardware structure comprises:
Master control XCU and standby XCU by double-machine switching circuit communication connection;
The master control switch that is connected with described master control XCU, described standby XCU communication respectively;
The backup switch that is connected with described master control XCU, described standby XCU communication respectively;
It is characterized in that:
Also comprise a plurality of parallel I/O modules, be connected with the communication of described master control switch and be connected with described backup switch communication by a plurality of standby communication modules by a plurality of master control communication modules;
Between a plurality of described master control communication modules, be serial communication between a plurality of described standby communication module and connect.
2. novel scattered control system hardware structure as claimed in claim 1 is characterized in that:
Described master control XCU comprises the first parallel master control switch and the second master control switch, first communication module in a plurality of described master control communication module of serial is connected with the described first master control switch, thus the master control communication link that the tail communication module in a plurality of described master control communication module of serial and the described second master control switch are connected and constituted a linear structure.
3. novel scattered control system hardware structure as claimed in claim 1 is characterized in that:
Described standby XCU comprises first backup switch and second backup switch, first communication module in a plurality of described standby communication module of serial is connected with described first backup switch, thereby the tail communication module in a plurality of described standby communication module of serial is connected with described second backup switch and constituted the standby communication link of a linear structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586130U CN201196743Y (en) | 2008-05-19 | 2008-05-19 | Novel decentralized control system hardware structure |
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| CNU2008200586130U CN201196743Y (en) | 2008-05-19 | 2008-05-19 | Novel decentralized control system hardware structure |
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| CN201196743Y true CN201196743Y (en) | 2009-02-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838186A (en) * | 2012-11-20 | 2014-06-04 | 中核建中核燃料元件有限公司 | Automatic control system of dry method device |
| CN108073069A (en) * | 2016-11-08 | 2018-05-25 | 上海孚凌自动化控制系统有限公司 | Plural intelligent control system for boiler |
| CN108833248A (en) * | 2018-06-13 | 2018-11-16 | 广州马其纳工程技术有限公司 | A kind of structure based on loop network control technology |
| CN110045698A (en) * | 2019-04-11 | 2019-07-23 | 重庆川仪控制系统有限公司 | A kind of controller based on DCS control system |
| CN111799719A (en) * | 2020-08-05 | 2020-10-20 | 上海万利斯电子技术有限公司 | Intelligent manufacturing comprehensive wiring system and method |
-
2008
- 2008-05-19 CN CNU2008200586130U patent/CN201196743Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838186A (en) * | 2012-11-20 | 2014-06-04 | 中核建中核燃料元件有限公司 | Automatic control system of dry method device |
| CN108073069A (en) * | 2016-11-08 | 2018-05-25 | 上海孚凌自动化控制系统有限公司 | Plural intelligent control system for boiler |
| CN108833248A (en) * | 2018-06-13 | 2018-11-16 | 广州马其纳工程技术有限公司 | A kind of structure based on loop network control technology |
| CN110045698A (en) * | 2019-04-11 | 2019-07-23 | 重庆川仪控制系统有限公司 | A kind of controller based on DCS control system |
| CN111799719A (en) * | 2020-08-05 | 2020-10-20 | 上海万利斯电子技术有限公司 | Intelligent manufacturing comprehensive wiring system and method |
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Granted publication date: 20090218 |