CN101789867A - Double-redundancy industrial Ethernet data exchange unit - Google Patents
Double-redundancy industrial Ethernet data exchange unit Download PDFInfo
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- CN101789867A CN101789867A CN 201010125277 CN201010125277A CN101789867A CN 101789867 A CN101789867 A CN 101789867A CN 201010125277 CN201010125277 CN 201010125277 CN 201010125277 A CN201010125277 A CN 201010125277A CN 101789867 A CN101789867 A CN 101789867A
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Abstract
The invention relates to a double-redundancy industrial Ethernet data exchange unit, which comprises an excitation regulation cabinet, an excitation rectifier cabinet and a deexcitation protection cabinet. The device is characterized in that: a double industrial Ethernet exchanger is in series connection with the excitation regulation cabinet, the excitation rectifier cabinet and the deexcitation protection cabinet; and the excitation regulation cabinet, the excitation rectifier cabinet and the deexcitation protection cabinet are connected with the double industrial Ethernet exchanger by network transmission lines respectively. Due to adoption of a double Ethernet interface, a double Ethernet exchanger and a double network transmission line, the reliability of data communication in an excitation device is greatly improved and the communication transmission speed is fast.
Description
Technical field
The present invention relates to motor excitation control field, relate generally to a kind of double-redundancy industrial Ethernet data switch that is applied to exchanges data between excitation unit internal adjuster and rectifier cabinet, the field suppression protection cabinet.
Background technology
Excitation unit provides the exciting current that can regulate for the operation of synchronous generator or motor, and device is generally become by an excitation regulation cabinet, one or more excitation rectifier cabinet, one or more field suppression protection group.The excitation regulation cabinet is the control maincenter of whole device, includes two nested structures and the on all four adjuster of function in the excitation regulation cabinet.The excitation regulation cabinet to finish the collection of control signal and preliminary treatment, acceptance outside control command, carry out that PID calculates, completion logic is judged, send control signal, to man-machine interface and distant place control centre transmit real time data etc. on the spot.Exchanges data in the excitation unit comprises the exchanges data of the exchanges data of excitation regulation cabinet and man-machine interface in the excitation unit and excitation regulation cabinet and rectifier cabinet, field suppression protection cabinet.
One, the exchanges data of excitation regulation cabinet and man-machine interface in the excitation unit: adopt the RS232 serial communication usually, on transmission line, only allow a driver and a receiver, mode of operation is the single-ended reception of single-ended transmission, maximum transmission distance is 1Sm, maximum data transfer rate 20kbps, man-machine interface is arranged on the Qianmen of regulator cubicle on the spot, the communication data line is generally in 3 meters, disturb general baud rate that 9600bps is set for avoiding on-the-spot, communications protocol is the MODBUS agreement, do not adopt redundancy structure on the structure, state information by the exchanges data controller, fault messages etc. may be displayed on the man-machine interface, and the operator also can drop into controller on man-machine interface, operations such as excision.
Two, the exchanges data of excitation regulation cabinet and rectifier cabinet, field suppression protection cabinet in the excitation unit: generally adopt RS485 serial communication, CAN net, ARCNET local area network (LAN) and commercial Ethernet etc.; can obtain the analog quantity and the switching value information of rectifier cabinet, field suppression protection cabinet by the exchanges data adjuster, the control signal of isochronous governor can send to rectifier cabinet and field suppression protection cabinet to reach the purpose of control.
RS485 also is a kind of serial interface standard, maximum 32 drivers and 32 receivers of allowing on transmission line, mode of operation is that both-end sends the both-end reception, maximum transmission distance is 1200m, maximum data transfer rate 10Mbps, transmission medium adopts twisted-pair feeder, and communication speed is traditionally arranged to be 57.6Kbps, communications protocol is MODBUS agreement or ASCII custom protocol, does not adopt redundancy structure.
The CAN net is a kind of many main serial communications, communication media can be twisted-pair feeder, coaxial cable or optical fiber, the direct communication distance of CAN can reach 10Km farthest, transmission rate is 5kbps, highest communication speed can reach 1Mbps, transmission range is 40m, online any one node of CAN all can be at any time on one's own initiative the node of other on network send information, and be regardless of the principal and subordinate.But can only there be a pair of node in arbitrary moment in communication, and in fact the CAN net is a kind of improved point-to-point communication.
The token mode is adopted in the communication of ARCNET local area network (LAN), be token ownership working method, token sequentially passes to each node in net, when a node is obtained token, it can send a packet to other nodes, and then gives next node token.When offered load is light, even have only a node will send data, token also will be in net sequence delivery on each node.Transmission rate reaches 2.5Mbps.
The CSMA/CD agreement that commercial Ethernet adopts, Ethernet allow any one node not send information, transmission rate 100M/10Mbps to other nodes immediately when having other nodes to take network.But commercial ethernet device is not the high reliability standards requirement that can satisfy under the adverse circumstances, and Industrial Ethernet equipment is more and more important for commercial Application reliably.
Summary of the invention
The present invention is intended to can not make data communication in the excitation unit take into account the shortcoming of two-forty and reliability at prior art, provides a kind of reliability height and transmission speed fast double-redundancy industrial Ethernet data switch.The present invention adopts master controller, Dual-Ethernet switch, dual network transmission line with Dual-Ethernet mouth to make the reliability of the interior data communication of excitation unit improve greatly, and the communication transmission speed is fast.
The present invention is achieved through the following technical solutions:
Double-redundancy industrial Ethernet data switch; comprise excitation regulation cabinet, excitation rectifier cabinet and field suppression protection cabinet; it is characterized in that: described excitation regulation cabinet, excitation rectifier cabinet and field suppression protection also are serially connected with duplex industry Ethernet switch cashier's office in a shop, and excitation regulation cabinet, excitation rectifier cabinet and field suppression protection cabinet are connected with duplex industry Ethernet switch by Network transmission line respectively.
The master controller of described excitation regulation cabinet is automation controller PAC able to programme, comprise first master controller, second master controller and man-machine interface, be provided with the first Industrial Ethernet switch and the second Industrial Ethernet switch in the described excitation regulation cabinet, the port 1 of first master controller of described excitation regulation cabinet and port 2 are connected to the first Industrial Ethernet switch by Network transmission line respectively; The port 1 of second master controller of described excitation regulation cabinet and port 2 are connected to the second Industrial Ethernet switch by Network transmission line respectively; The port 1 of described man-machine interface is connected to the first Industrial Ethernet switch by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch by Network transmission line.
Built-in auxiliary PAC controller of described excitation rectifier cabinet or Ethernet intelligence I/O module, the port of described auxiliary PAC controller or Ethernet intelligence I/O module is connected to the Industrial Ethernet switch by Network transmission line, and each port is corresponding with each Industrial Ethernet switch.
Built-in auxiliary PAC controller of described field suppression protection cabinet or Ethernet intelligence I/O module; the port 1 of described auxiliary PAC controller or Ethernet intelligence I/O module is connected to the first Industrial Ethernet switch by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch by Network transmission line.
Described duplex industry Ethernet switch is eight port one 0/100Mbps non-webmaster type Industrial Ethernet switches.
Described man-machine interface is touch panel computer.
The present invention has the following advantages:
One, the RS232 communication is a point-to-point communication, because the inherent characteristic of serial communication has determined communication speed slow, can not realize the multi-point communication of bus type, has determined this communication scheme can't realize the multi-point communication redundancy.Though the RS485 communication can realize the communication of multiple spot master-slave mode, but realize the complexity that redundancy communication can raise the cost greatly and communication is handled, generally all do not adopt the redundancy communication structure, simultaneously for avoiding the high bit-error of telecommunication, all adopt low baud rate communication, make communication efficiency very low.Though the CAN bus can realize redundancy communication, but still do not break away from the inherent characteristics of serial communication, make the more occasion of its inapplicable communication contact at the communication speed of maximum 1Mbps in addition, otherwise communication efficiency can reduce greatly.The CSMA/CD agreement that commercial Ethernet adopts, Ethernet allow any one node not send information, transmission rate 100M/10Mbps to other nodes immediately when having other nodes to take network.But commercial ethernet device is not the high reliability standards requirement that can satisfy under the adverse circumstances.
Above four kinds of communication modes, the excitation regulation cabinet in the excitation unit, excitation rectifier cabinet, field suppression protection cabinet adopt the exchange of double-redundancy industrial Ethernet data comprehensively.Double-redundancy industrial Ethernet data switching technology has realized port redundancy, switch redundancy, connection redundancy, the more existing communication scheme that generally adopts improves on reliability greatly, in conjunction with the exclusive MODBUS/TCP communications protocol of Industrial Ethernet, greatly reduce the error rate again.And double-redundancy industrial Ethernet data switching technology communication speed is 10/100Mbps, satisfies the requirement of industry spot high speed communication fully.
Though two, the communication of ARCNET local area network (LAN) is had large improvement than serial communication, but communication speed still can't be mentioned in the same breath with Industrial Ethernet, the limitation of its communications protocol and not open is arranged again, can not realize remote diagnosis and remote maintenance functions that Industrial Ethernet has.And double-redundancy industrial Ethernet data switching technology adopts advanced KW-Multiprog software, support multitask function and custom feature piece, realize complicated control ability, support the international programming standard of IEC-61131-3, support remote diagnosis and remote maintenance functions.
Three, the Dual-Ethernet mouth one of them can normal communication when breaking down, the Dual-Ethernet switch one of them can normal communication when breaking down, the dual network transmission line one of them can normal communication when breaking down, be equivalent to reliability as can be known by probability theory and improved twice; Industrial Ethernet adopts the Modbus/Tcp communications protocol, has strict cyclic check, has guaranteed the normal communication under abominable operational environment, and the error rate is low; And the energy on-line maintenance has reduced the possibility that breaks down in the communication process greatly.
Description of drawings
Fig. 1 is the winding diagram of excitation rectifier cabinet and the built-in auxiliary PAC controller of field suppression protection cabinet
Fig. 2 is the winding diagram of excitation rectifier cabinet and field suppression protection cabinet built-in ethernet intelligence I/O module
Mark among the figure: 1, excitation regulation cabinet; 2, excitation rectifier cabinet; 3, field suppression protection cabinet, 4, duplex industry Ethernet switch, 5, first master controller; 6, second master controller; 7, man-machine interface, 8, the first Industrial Ethernet switch, 9, the second Industrial Ethernet switch; 10, auxiliary PAC controller, 11, Ethernet intelligence I/O module.
Embodiment
As shown in Figure 1; double-redundancy industrial Ethernet data switch; comprise excitation regulation cabinet 1, excitation rectifier cabinet 2, field suppression protection cabinet 3; also be serially connected with duplex industry Ethernet switch 4 on described excitation regulation cabinet 1, excitation rectifier cabinet 2, the field suppression protection cabinet 3, described duplex industry Ethernet switch 4 is eight port one 0/100Mbps non-webmaster type Industrial Ethernet switches.Have a 10/100Mbps Ethernet interface; a 10/100/1000Mbps Ethernet interface; 15 cun TFTLCD screens of general employing, low power consumption CPU does not have the fan compact design, and abundant standard I/O supports; the multiple standards communication function is provided; convenient different peripheral equipments, the DC24V power supply of band ground protection, two USB2.0 interfaces of connecting; big capacity compact Flash flash memory is supported operating systems such as WindowsXP, WinPe, WinCE.Support the full-duplex/half-duplex flow control; support the automatic cross-over connection of MDI/MDI-X; the broadcast storm protection is provided; be embedded with a switching controller, support auto-negotiation, be embedded with a storage buffering; support storage to transmit; support that voltage is the DC power line surge protection of 3000V, support that voltage is the DC Ethernet esd protection of 4000V, support two 24V power supply inputs.Excitation regulation cabinet 1, excitation rectifier cabinet 2, field suppression protection cabinet 3 carry out communication by duplex industry Ethernet switch 4, realize the redundancy of Ethernet data exchange.The master controller of described excitation regulation cabinet 1 is automation controller PAC able to programme, comprises first master controller 5, second master controller 6 and man-machine interface 7, and described man-machine interface 7 is touch panel computer.Be provided with the first Industrial Ethernet switch 8 and the second Industrial Ethernet switch 9 in the described excitation regulation cabinet 1, the port 1 of first master controller 5 of described excitation regulation cabinet 1 and port 2 are connected to the first Industrial Ethernet switch 8 by Network transmission line respectively; The port 1 of second master controller 6 of described excitation regulation cabinet 1 and port 2 are connected to the second Industrial Ethernet switch 9 by Network transmission line respectively; The port 1 of described man-machine interface 7 is connected to the first Industrial Ethernet switch 8 by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch 9 by Network transmission line.First master controller 5, second master controller 6 adopt the two CPU of high-performance low-power-consumption, and have abundant controlled function.Support as WatchDog Timer, battery backup RAM and powerful I/O; PAC supports 5 kinds of standard IEC 61131-3 programming languages under the Wince 5.0, two 10/100Mbps Ethernet interfaces are provided, the certainty I/O that PAC adopts powerful Multiprog KW software and stable ProCon OS can guarantee 1ms, guarantee that I/O gathers and the response speed of controlled stage, support Modbus/RTU main website and Modbus/TCP agreement, support remote diagnosis and remote maintenance.Described excitation rectifier cabinet 2 built-in auxiliary PAC controllers 10, the port of described auxiliary PAC controller 10 is connected with the second Industrial Ethernet switch 9 with the first Industrial Ethernet switch 8 respectively by Network transmission line, and each port is with corresponding with the first Industrial Ethernet switch 8 and the second Industrial Ethernet switch 9.Described field suppression protection cabinet 3 built-in auxiliary PAC controllers 10, the port 1 of described auxiliary PAC controller 10 is connected to the first Industrial Ethernet switch 8 by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch 9 by Network transmission line.The programming software of double-redundancy industrial Ethernet data switching technology adopts Multiprog KW software, meet IEC61131-3 programming language standard, adopt multi-task mechanism, support five kinds of programming languages, adopt graphic user interface, debug function is powerful, but online editing, PLC emulation, rewriting and pressure, breakpoint, watch window and prescription, logic analyzer and cross reference.
As shown in Figure 2; double-redundancy industrial Ethernet data switch; comprise excitation regulation cabinet 1, excitation rectifier cabinet 2, field suppression protection cabinet 3; also be serially connected with duplex industry Ethernet switch 4 on described excitation regulation cabinet 1, excitation rectifier cabinet 2, the field suppression protection cabinet 3, described duplex industry Ethernet switch 4 is eight port one 0/100Mbps non-webmaster type Industrial Ethernet switches.Have a 10/100Mbps Ethernet interface; a 10/100/1000Mbps Ethernet interface; 15 cun TFTLCD screens of general employing, low power consumption CPU does not have the fan compact design, and abundant standard I/O supports; the multiple standards communication function is provided; convenient different peripheral equipments, the DC24V power supply of band ground protection, two USB2.0 interfaces of connecting; big capacity compact Flash flash memory is supported operating systems such as WindowsXP, WinPe, WinCE.Support the full-duplex/half-duplex flow control; support the automatic cross-over connection of MDI/MDI-X; the broadcast storm protection is provided; be embedded with a switching controller, support auto-negotiation, be embedded with a storage buffering; support storage to transmit; support that voltage is the DC power line surge protection of 3000V, support that voltage is the DC Ethernet esd protection of 4000V, support two 24V power supply inputs.Excitation regulation cabinet 1, excitation rectifier cabinet 2, field suppression protection cabinet 3 carry out communication by duplex industry Ethernet switch 4, realize the redundancy of Ethernet data exchange.The master controller of described excitation regulation cabinet 1 is automation controller PAC able to programme, comprises first master controller 5, second master controller 6 and man-machine interface 7, and described man-machine interface 7 is touch panel computer.Be provided with the first Industrial Ethernet switch 8 and the second Industrial Ethernet switch 9 in the described excitation regulation cabinet 1, the port 1 of first master controller 5 of described excitation regulation cabinet 1 and port 2 are connected to the first Industrial Ethernet switch 8 by Network transmission line respectively; The port 1 of second master controller 6 of described excitation regulation cabinet 1 and port 2 are connected to the second Industrial Ethernet switch 9 by Network transmission line respectively; The port 1 of described man-machine interface 7 is connected to the first Industrial Ethernet switch 8 by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch 9 by Network transmission line.First master controller 5, second master controller 6 adopt the two CPU of high-performance low-power-consumption, and have abundant controlled function.Support as WatchDog Timer, battery backup RAM and powerful I/O; PAC supports 5 kinds of standard IEC 61131-3 programming languages under the Wince 5.0, two 10/100Mbps Ethernet interfaces are provided, the certainty I/O that PAC adopts powerful Multiprog KW software and stable ProCon OS can guarantee 1ms, guarantee that I/O gathers and the response speed of controlled stage, support Modbus/RTU main website and Modbus/TCP agreement, support remote diagnosis and remote maintenance.Described excitation rectifier cabinet 2 built-in ethernets intelligence I/O module 11, the port of described Ethernet intelligence I/O module 11 is connected with the second Industrial Ethernet switch 9 with the first Industrial Ethernet switch 8 respectively by Network transmission line, and each port is with corresponding with the first Industrial Ethernet switch 8 and the second Industrial Ethernet switch 9.Described field suppression protection cabinet 3 built-in ethernets intelligence I/O module 11; the port 1 of described Ethernet intelligence I/O module 11 is connected to the first Industrial Ethernet switch 8 by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch 9 by Network transmission line.The programming software of double-redundancy industrial Ethernet data switching technology adopts Multiprog KW software, meet IEC61131-3 programming language standard, adopt multi-task mechanism, support five kinds of programming languages, adopt graphic user interface, debug function is powerful, but online editing, PLC emulation, rewriting and pressure, breakpoint, watch window and prescription, logic analyzer and cross reference.
The invention is not restricted to above embodiment, but all should fall within the claim protection range of the present invention.
Claims (6)
1. double-redundancy industrial Ethernet data switch; comprise excitation regulation cabinet (1), excitation rectifier cabinet (2) and field suppression protection cabinet (3); it is characterized in that: also be serially connected with duplex industry Ethernet switch (4) on described excitation regulation cabinet (1), excitation rectifier cabinet (2) and the field suppression protection cabinet (3), excitation regulation cabinet (1), excitation rectifier cabinet (2) and field suppression protection cabinet (3) are connected with duplex industry Ethernet switch (4) by Network transmission line respectively.
2. according to the described double-redundancy industrial Ethernet data of claim 1 switch, it is characterized in that: the master controller of described excitation regulation cabinet (1) is automation controller PAC able to programme, comprise first master controller (5), second master controller (6) and man-machine interface (7), be provided with the first Industrial Ethernet switch (8) and the second Industrial Ethernet switch (9) in the described excitation regulation cabinet (1), the port 1 of first master controller (5) of described excitation regulation cabinet (1) and port 2 are connected to the first Industrial Ethernet switch (8) by Network transmission line respectively; The port 1 of second master controller (6) of described excitation regulation cabinet (1) and port 2 are connected to the second Industrial Ethernet switch (9) by Network transmission line respectively; The port 1 of described man-machine interface (7) is connected to the first Industrial Ethernet switch (8) by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch (9) by Network transmission line.
3. according to the described double-redundancy industrial Ethernet data of claim 1 switch, it is characterized in that: built-in auxiliary PAC controller of described excitation rectifier cabinet (2) (10) or Ethernet intelligence I/O module (11), the port of described auxiliary PAC controller (10) or Ethernet intelligence I/O module (11) is connected to the Industrial Ethernet switch by Network transmission line, and each port is corresponding with each Industrial Ethernet switch.
4. according to the described double-redundancy industrial Ethernet data of claim 1 switch; it is characterized in that: built-in auxiliary PAC controller of described field suppression protection cabinet (3) (10) or Ethernet intelligence I/O module (11); the port 1 of described auxiliary PAC controller (10) or Ethernet intelligence I/O module (11) is connected to the first Industrial Ethernet switch (8) by Network transmission line, and port 2 is connected to the second Industrial Ethernet switch (9) by Network transmission line.
5. according to the described double-redundancy industrial Ethernet data of claim 1 switch, it is characterized in that: described duplex industry Ethernet switch (4) is eight port one 0/100Mbps non-webmaster type Industrial Ethernet switches.
6. according to the described double-redundancy industrial Ethernet data of claim 2 switch, it is characterized in that: described man-machine interface (7) is touch panel computer.
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| CN 201010125277 CN101789867A (en) | 2010-03-16 | 2010-03-16 | Double-redundancy industrial Ethernet data exchange unit |
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| CN102185739A (en) * | 2011-05-14 | 2011-09-14 | 华北水利水电学院 | Device for testing Ethernet network cable connection diagram |
| CN105099310A (en) * | 2015-09-10 | 2015-11-25 | 长江三峡能事达电气股份有限公司 | Distributed control based highly-redundant excitation system and control method thereof |
| CN105897574A (en) * | 2016-05-27 | 2016-08-24 | 中国东方电气集团有限公司 | Modbus RTU/TCP gateway device supporting double-Ethernet and double-master-station redundancy |
| CN111327503A (en) * | 2020-03-10 | 2020-06-23 | 浙江明度智控科技有限公司 | MODBUS bus-based multi-master-station token scheduling device, communication method and system |
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| CN111327503A (en) * | 2020-03-10 | 2020-06-23 | 浙江明度智控科技有限公司 | MODBUS bus-based multi-master-station token scheduling device, communication method and system |
| CN111327503B (en) * | 2020-03-10 | 2022-03-01 | 明度智云(浙江)科技有限公司 | MODBUS bus-based multi-master-station token scheduling device, communication method and system |
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Application publication date: 20100728 |