CN201048386Y - Redundancy type intelligent network communication controller - Google Patents
Redundancy type intelligent network communication controller Download PDFInfo
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- CN201048386Y CN201048386Y CNU2006200938234U CN200620093823U CN201048386Y CN 201048386 Y CN201048386 Y CN 201048386Y CN U2006200938234 U CNU2006200938234 U CN U2006200938234U CN 200620093823 U CN200620093823 U CN 200620093823U CN 201048386 Y CN201048386 Y CN 201048386Y
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model relates to a network communication controller in an on-spot bus-mastering system. Aiming to improve the reliability and the real-time performance of the working of the on-spot bus-mastering system, the utility model provides a redundancy intelligent network communication controller. The redundancy intelligent network communication controller is formed by connecting a primary communication controller with a stand-by communication controller which has the uniform structure constitutes. A centrally controlled CPU unit and an electrical source unit are arranged in each set of communication controllers, the I/O buses of the controllers are respectively connected with an Ethernet interface bus unit, a H1 type low-speed on-spot interface bus unit, and a H2 type high-speed on-spot interface bus unit. Adopting the I/O bus as the monitoring signal terminal, the primary communication controller with a stand-by communication controller is connected through a photoelectrical insulating coupling part. The technical proposal has the advantages of high reliability and high real-time performance.
Description
Technical field
The utility model relates to the network communication controller among the field bus control system FCS, it is widely used in the automation process control field of relevant industries such as electric power, oil, chemical industry, metallurgy, pharmacy, papermaking.
Background technology
Along with intelligence instrument, the development of network technology and data communication technology, Field Bus Control Technology has become the development main flow of current automated control technology, it has substituted the key technology means that existing distributed control system DCS becomes automation control area, but the technical problem underlying that field bus control system exists is: 1, all adopt stand-alone device, when device itself or fieldbus break down, all can influence the normal operation of whole system, can not satisfy and have high reliability, the application scenario 2 of redundancy requirement, adopt gateway mostly, it is protocol conversion apparatus, because the station level network rate generally is not less than 10M, and the fieldbus speed of on-the-spot wall generally is lower than 1M, therefore when fieldbus substation equipment be network node more for a long time, wait for that the substation device data upgrades owing to always be in, thereby can reduce the real-time of whole system greatly, can not satisfy big data quantity, the application scenario of high real-time energy; 3, existing this series products adopts the descending on-the-spot interface of low speed mostly, interface bus speed is not higher than 38.4K, can not satisfy the application and the standard of the H2 class high speed fieldbus of current International Industry main flow: 1. DeviceNet bus, the requirement of GB/T18858.3-2002,2. Profibus-DP bus, the requirement of TYPE III among IEC 61 158:2003,3. Modbus/TCP Industrial Ethernet, the requirement of GB/Z19582.1-2004 part 1; 4, the product of this technical field adopts industrial computer and WINDOWS operating system to finish mostly at present, but patches device owing to have many peripheries such as fan, hard disk, and all there are destabilizing factor in hardware and software.In sum, the key technical problem that prior art faces is the standardization that guarantees its reliability, real-time and fieldbus, and present above-mentioned technical problem is not all effectively solved, and has restricted the extensive use of field bus control system FCS.
The utility model content
The goal of the invention of the utility model patent application is to provide a kind of reliability height, transmission communication transmission rate height, and can forms the redundant intelligent network communication controller of field bus control system FCS based on standardized H2 class high speed fieldbus networks.The redundant intelligent network communication controller technical scheme that the utility model patent application provides, its major technique content is: a kind of redundant intelligent network communication controller, constitute identical main communication controller and standby communication controller connects to form by structure, be provided with central Controlled CPU unit and power subsystem in every group of communication controller, its I/O bus is provided with respectively and connects the Ethernet interface bus unit, on-the-spot interface bus unit of H1 class low speed and the on-the-spot interface bus of H2 class high speed unit are connected through photoelectric isolating coupler spare as the monitor signal end by the I/O bus between main communication controller and the standby communication controller.
Two above-mentioned intelligent network communication controllers can be formed the redundance type field bus control system with control machine and standby control machine with main, it leads the preferential management control right that device is arranged with the control facility, and the every 200MS of main simultaneously communication controller isolates the standby control machine of output notice with pulse mode light.Which kind of reason no matter, break down with the control machine when main, both standby communication controller does not detect main pulse signal with the control machine in the 500MS that sets, then standby control machine is taken over the control of whole system, comprises that the hardware redundancy processing and the software data of Ethernet, fieldbus etc. handled; Treat main with control machine maintenance multiple or recover normal after, standby control machine is given back system's control and management power automatically and mainly use the control machine, withdraws from " seamless " transition of assurance whole system then automatically.Technical solutions of the utility model also realize the application of hardware net topology based on the fieldbus networks architecture mode of layered distribution type, with software design each field-bus interface is all distributed independently worker thread, descending fieldbus image data real-time update is to the user data area of this redundant intelligent network communication controller, can be according to the customer requirements configuration file, realize various data programings, conclude, arrangement and calculating, up Ethernet only carries out exchanges data to user data area, greatly improved the real-time of network data, especially fieldbus substation equipment is the more application scenario of network node.The utility model scheme has multiple field-bus interface, comprises the accurate H1 class of 4 road signs low speed fieldbus; Standard H2 class high speed field-bus interface, comprising 10M/100M adaptive industrial Ethernet interface 2 tunnel, Profibus-DP or DeviceNet bus interface 4 tunnel.The operating system of this redundant intelligent network communication controller adopts real-time multi-task operating system LINUX, CPU adopts ARM9, dominant frequency 266MHz, no hard disk, the design of no fan, not only further improve reliability from hardware point of view, also can exempt the puzzlement of computer virus from the software angle.
Description of drawings
Fig. 1 and Fig. 2 are respectively the utility model redundant intelligent network communication controller are connected to main two nets and the single anastomose composition of using the field bus control system of control machine and standby control machine mode
Fig. 3 is the circuit structure block diagram of this redundant intelligent network communication controller.
Embodiment
Redundant intelligent network communication controller of the present utility model, as shown in Figure 3, its major technique content is: this redundant intelligent network communication controller constitutes identical main communication controller (A) by structure and standby communication controller (B) connects to form, be equipped with central Controlled CPU unit A in every group of communication controller, B and power subsystem a, b, wherein select the central processing unit of ARM9 for use as its central Controlled CPU unit, its I/O bus is distributed respectively and is connected with Ethernet interface bus unit 1A, 1B, the on-the-spot interface bus unit 2A.3A of H1 class low speed, 2B.3B, and the on-the-spot interface bus of H2 class high speed unit 4A.5A, 4B.5B, between main communication controller (A) and the standby communication controller (B) by the I/O bus of distributing separately as the monitor signal end, connect through photoelectric isolating coupler spare.
Central processing unit wherein:
1、CPU IDT?79R32438-266，MIP32?Core?266MHz；
2, Flash Memory:8M Bytes is used to deposit user profile;
3, SDRAM 32M Bytes is used for the internal memory that CPU and fieldbus carry out communication;
4, EEPROM; 512K Bytes is used for the storage system program.
Field-bus interface:
1,2 road Ethernet interface 1A, 1B: adopt 10/100M self adaptation Ethernet, the RJ45 interface, communications protocol adopts MODBUS/TCP, meets the industrial automation network standard 1st, 3 parts of GB GB/Z 19582.1-2004 based on the MODBUS agreement;
2,4 road H1 class low speed field-bus interface 2A.3A, 2B.3B: adopt standard RS-485 or RS-422 interface, the highest communication speed can reach 38.4K, communications protocol adopts MODBUSRTU, meets the industrial automation network standard 1st, 2 parts of GB GB/Z 19582.1-2004 based on the MODBUS agreement;
3,4 road H2 class high speed field-bus interface 4A.5A, 4B.5B:
Possess following field-bus interface card, master/slave station can be selected, wherein:
The Profibus-DP bus: communication speed 187.5K/500K/1500K/3000K is optional;
The DeviceNet bus: communication speed 125K/250K/500/1000K is optional;
The LonWorks bus: communication speed 125K/250K/500/1000K is optional.
Its system data disposal ability;
16 analog quantity remote measurement total amounts: 8192 point data are configurable;
32 distant arteries and veins total amounts of analog quantity: 4096 point data are configurable;
Switching value input remote signalling total amount: 8192 point data are configurable;
Switching value output remote control total amount: 4096 point data are configurable.
Its system's operation and maintenance: 1, LED light: power supply: 1; Operation: 1; Each 2 of Ethernet: 10M/100M; Fieldbus operating state: receive/send out each 8.2, system configuration port: RS-232 communication port .1 (DB9 hole); 3, real-time clock.
Narrate the operation principle of this redundant intelligent network communication controller below:
One, Zhuan Zhi configuration file
The hardware of the utility model redundant intelligent network communication controller all adopts two cover separate hardware configuration, and the mode of operation of two covering devices is to finish according to user's configuration file, and user profile comprises:
1, the mode of operation of main communication controller (A) and standby communication controller (B)
2, the communications protocol of H1 class low speed fieldbus, substation quantity and address, data type, data volume, communication speed and the mode of connection etc.
3, the bus type of H2 class high speed fieldbus, substation quantity and address, data type, data volume, communication speed etc.
4, the IP address of Ethernet, port numbers, substation mask, gateway address, data type, data volume, communications protocol etc.
Two, the course of work:
Under the normal condition: main communication controller (A) has the priority system administrative power of device and the Communication Control power of fieldbus, both " main communication controller (A) " was in normal operating conditions, be responsible for the scheduling and the management work of fieldbus, " main communication controller (A) " is by photoelectric isolating coupler spare simultaneously, pulse signal of every 200mS output is to " standby communication controller (B) ", incense monitors the usefulness that " main communication controller (A) " is whether working properly with communication controller (B), which kind of reason no matter, (A) breaks down when main communication controller, as power failure, when cpu fault or fieldbus fault or the like, main communication controller (A) output pulse signal stops, and does not detect the pulse signal of main communication controller (A) in 500MS when standby communication controller (B); Standby communication controller (B) is taken over the control of whole system, comprises the hardware management and the software data processing of Ethernet, fieldbus etc.; Take over the scheduling and the management work of main communication controller (A) by standby communication controller (B); After main communication controller (A) was repaired or recovered normally, standby communication controller (B) withdrawed from after giving main communication controller (A) with system's control and management power automatically automatically, realizes that the entire field bus is soft, " nothing is met " transition of hardware.1, under the device normal condition, " main communication controller (A) " has system's control, and main scheduling and Admin Events are as follows: the H1 class field-bus interface 2A of 1. main communication controller (A), the responsible bus data acquisition of 3A, control; H1 class field-bus interface 2B, the 3B of standby communication controller (B) are in wait state, do not work; The responsible bus data of H2 class field-bus interface 4A, the 5A of 2. main communication controller (A) is handled, control; H2 class field-bus interface 4B, the 5B of standby communication controller (B) are in wait state, do not work; Because H2 class high-speed bus type is more, as: Profibus-DP, DeviceNet, LonWorks etc., their hardware interface and data message access mechanism difference, therefore adopted intelligent on-site bus line module in the present embodiment with two RAM interfaces, its overall dimensions are: 72*48*16mm, and the read-write form of its pair RAM and fieldbus data district all are identical, therefore, for different H2 class fieldbus, can select corresponding intelligent on-site bus line module; Software-driven is identical, only needs in the configuration file of modifier the fieldbus type both can.3. network data processing and the control of Ethernet interface 1A; Standby communication controller (B) Ethernet 1B be in wait state, do not work; 4. I/O data processing and control: by the I/O data wire, pulse signal of every 200mS output is to photoelectric isolating coupler spare, and the photoelectric isolating coupler spare that this photoelectric isolating coupler spare output signal is connected to is imported.The I/O data processing and the control of standby communication controller (B): by the I/O data wire, every 250mS reads the pulsatile once input signal, if do not detect the pulse signal of main communication controller (A) in the 500mS; Standby communication controller (B) is taken over the control of whole system, comprises the hardware management and the software data processing of Ethernet, fieldbus etc.; Take over the scheduling and the management work of main communication controller (A) by standby communication controller (B).2, under the device abnormality, " standby communication controller (B) " has system's control, and main scheduling and Admin Events are as follows: the H1 class field-bus interface 2B of 1. standby communication controller (B), the responsible bus data acquisition of 3B, control; H1 class field-bus interface 2A, the 3A of main communication controller (A) is in wait state or do not work; The responsible bus data processing/control of the H2 class field-bus interface (4B, 5B) of 2. standby communication controller (B); The H2 class fieldbus of main control unit meets 4A, 5A and is in wait state or does not work; The same page or leaf of H2 class high-speed bus operation principle " the H2 class field-bus interface of main communication controller (A) ".Network data processing and the control of the Ethernet interface 1B of 3. standby communication controller (B); The Ethernet interface 1A of main communication controller (A) is in wait state or does not work; The I/O data processing and the control of 4. standby communication controller (B): by the I/O data wire, every 250mS reads the pulse input signal that is once sent by main communication controller (A), if be consecutively detected 3 or above pulse signal in the 1000mS, represent that main communication controller (A) has recovered operate as normal, standby communication controller (B) will withdraw from the control of whole system immediately automatically, comprise the hardware management and the software data processing of Ethernet, fieldbus etc.; Be responsible for the scheduling and the management work of system by main communication controller (A).
The utlity model has following advantage: 1. have high reliability. The CPU of hardware, Field-bus interface and power supply all adopt identical and hardware unit independently, master-slave redundancy work Pattern, software adopts the LINUX embedded OS; No matter which kind of fault appears, such as electricity Source fault, cpu fault, fieldbus fault or software fault etc. all do not affect device Normal operation. Can be widely used in industrial process automation and industrial manufacturing automation field, Comprise: the relevant industries such as metallurgy, chemical industry, electric power, pharmacy, papermaking, especially in continuous life The automation process control field that produces.
2. have the decentralised control characteristics. The utility model has been discarded the input of DCS/defeated Go out unit and control station, the input and output merit of the control function of DCS control station and DCS Can be distributed to the field apparatus on the network, thereby consist of the Fieldbus Control station, the control function Realized by field apparatus, thereby realize thoroughly decentralised control, embodied the height of system architecture Degree is dispersed.
3. has the automation integration capability. The utility model has been broken through in the DCS system logical Letter adopts man-to-man equipment line by the closed system of dedicated network, presses control loop respectively Carry out rigid line and connect to realize the drawback that causes, can save a large amount of communication cables; Based on Sealing, special-purpose solution become based on come into the open, standardized solution, by In having adopted smart devices, can be the control that is in the control room in the original DCS system Module, each input/output module are transferred to field apparatus, are convenient to the automation equipment with standard Be linked to be system by fieldbus networks, realize the various functions of comprehensive automation.
4. has high real-time.The utility model had been discarded in the past " gateway " formula transparent data access mechanism, the hardware net topology is used the fieldbus networks framework based on layered distribution type, software engineering adopts each field-bus interface all to distribute independently worker thread, descending fieldbus image data real-time update is to user data area, according to user profile, able to programme, conclude, put in order and calculate various data, up Ethernet only carries out exchanges data to user data area; Greatly improved the real-time of network data, especially fieldbus substation equipment, the i.e. more application scenario of network node.
5. the opening that has system.Open consistency, the publicity that is meant relevant criterion, emphasize to the common recognition of standard with defer to.An open system is meant that it can be connected with miscellaneous equipment or the system of under the sun observing identical standard.Communication protocol is consistent to be disclosed, can realize information exchange between the equipment of each different manufacturers. the utility model is devoted to set up the open system of unified factory's bottom-layer network, the user can be by needs and the consideration of oneself, forming the random system of size, construct the open interconnection system of automatic field by the utility model from different suppliers' product.
6. have interoperability and interoperability. interoperability of the present utility model, be meant realize between interconnect equipment, the information between system transmits and link up; Can realize mutual alternative with equipment like the performance classes that then means different manufacturers mutually.
7. the intellectuality and the function autonomy that have field apparatus.The utility model with sensing measurement, compensation calculate, quantities is handled with functions such as control is distributed to and finishes in the field apparatus, only depends on field apparatus can finish the basic function of automatic control, and the running status of diagnostic device at any time.
8. having adaptability to site environment. the utility model is operated in the production scene front end, as the fieldbus of plant network bottom, aim at site environment and design, can support the double cut line, coaxial cable, optical cable, radio frequency, infrared ray, power line etc. have stronger antijamming capability.
9. save hardware quantity and investment.Because being dispersed in on-the-spot smart machine, the utility model can directly carry out multiple sensing control warning and computing function, thereby can reduce the quantity of transmitter, no longer need independent adjuster, computing unit etc., functional unit and complicated connections the thereof such as signal condition, conversion, isolation that also no longer need the DCS system, can also be with the industry control PC as active station, thereby saved a large number of hardware investment, and can reduce the floor space in control room.
10. saving mounting cost.Wiring of the present utility model is very simple, usually can articulate a plurality of equipment on a pair of double cut line or a cable, thereby the consumption of cable, terminal, groove box, crane span structure significantly reduces, the line design also significantly reduces with the workload of joint check and correction. when needs increase field control equipment, need not to set up new cable, can be connected nearby on original cable, both saved investment, also reduce the workload of design, installation.
11. saving maintenance costs.Owing to the utlity model has the ability that self diagnosis and simple fault are handled, and be sent to the control room by the diagnosis maintenance information that digital communication will be correlated with, the user can inquire about the operation of all devices, the diagnosis maintenance information, so that early stage analyzing failure cause is also got rid of fast, shortened and safeguarded downtime, because system configuration is simplified, line has simply reduced maintenance workload simultaneously.
12. the user has the system integration initiative of height. the equipment that adopting the utility model user freely to select different vendor is provided comes integrated system. avoided because of the product quilt " frame is dead " of having selected a certain brand the range of choice of use equipment, can not be stymied by, system integration power is firmly grasped in user's hand for agreement incompatible in the system integration, interface.
13. improved the accuracy of system. owing to intellectuality of the present utility model, digitlization, compare with analog signal, it has fundamentally improved the accuracy of measuring with control, has reduced the transmission error; Simultaneously, because the designs simplification of system, equipment and line reduce, and the field instrument built-in function is strengthened, and has reduced the round-trip transmission of signal, has further improved the functional reliability of system.
Claims (2)
1. redundant intelligent network communication controller, it is characterized in that it constitutes identical main communication controller by structure and standby communication controller connects to form, be provided with central Controlled CPU unit and power subsystem in every group of communication controller, its I/O bus is connected with on-the-spot interface bus unit of Ethernet interface bus unit (1A, 1B), H1 class low speed and the on-the-spot interface bus of H2 class high speed unit respectively, between main communication controller and the standby communication controller by the I/O bus as the monitor signal end, connect through photoelectric isolating coupler spare.
2. redundant intelligent network communication controller according to claim 1 is characterized in that being provided with a mouthful RAM interface intelligent on-site bus line module between the I/O interface bus of on-the-spot interface unit of H2 class high speed and central Controlled CPU unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200938234U CN201048386Y (en) | 2006-10-30 | 2006-10-30 | Redundancy type intelligent network communication controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2006200938234U CN201048386Y (en) | 2006-10-30 | 2006-10-30 | Redundancy type intelligent network communication controller |
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| Publication Number | Publication Date |
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| CN201048386Y true CN201048386Y (en) | 2008-04-16 |
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| CNU2006200938234U Expired - Lifetime CN201048386Y (en) | 2006-10-30 | 2006-10-30 | Redundancy type intelligent network communication controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122157A (en) * | 2010-12-27 | 2011-07-13 | 北京建龙重工集团有限公司 | Redundancy architecture control system and method thereof capable of keeping original system function and performance |
| CN105843199A (en) * | 2009-10-02 | 2016-08-10 | 通用电气公司 | Control systems and methods of providing the same |
-
2006
- 2006-10-30 CN CNU2006200938234U patent/CN201048386Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843199A (en) * | 2009-10-02 | 2016-08-10 | 通用电气公司 | Control systems and methods of providing the same |
| CN102122157A (en) * | 2010-12-27 | 2011-07-13 | 北京建龙重工集团有限公司 | Redundancy architecture control system and method thereof capable of keeping original system function and performance |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20080416 |
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| EXPY | Termination of patent right or utility model |