CN205899365U - Novel distributed control system bus connection structure - Google Patents
Novel distributed control system bus connection structure Download PDFInfo
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- CN205899365U CN205899365U CN201620857280.2U CN201620857280U CN205899365U CN 205899365 U CN205899365 U CN 205899365U CN 201620857280 U CN201620857280 U CN 201620857280U CN 205899365 U CN205899365 U CN 205899365U
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- Prior art keywords
- control system
- system bus
- distributed control
- controller
- wireless
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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]
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Abstract
The utility model provides an adopt 2.4G wireless module to connect between a plurality of IO modules that novel distributed control system bus connection structure, each other is controlled with being equipped with the controller and receiving main control unit or be equipped with the controller for redundant main control unit 2.4G wireless module adopt the wireless sequence signal transmission mode of DSSS, adopt the utility model discloses connection structure not only uses simple to operate, has improved system reliability, and the extension is nimble, simultaneously the cost is reduced.
Description
Technical field
This utility model is related to Distributed Control System technical field and in particular to a kind of New Distributed Control System bus connects
Access node structure.
Background technology
Traditional DCS, adopts rs485 and can bus as controlling network bus more, belongs to wired connection.As figure
Shown in 1, actually used central, by cable material, bus junction point is easily loosening, and open circuit, short circuit, communication speed is low, connect
The restriction of the series of factors such as i/o module negligible amounts, complex electromagnetic environment interference.Additionally, a node on communication link
Damage may cause whole communication link to be affected, and in actual use, adopt the communication bus of two-way physically-redundant more, be
System cost greatly increases.On this basis it is proposed that a kind of bus connection scheme of Distributed Control System, save system cost
Meanwhile, improve system reliability, and easy to install, connectivity is strong.
Content of the invention
In order to overcome the shortcomings of above-mentioned existing controlling bus presence, the purpose of this utility model is to provide a kind of new collection
Scattered control system bus line connecting structure, not only easy to install and use, improve system reliability, extension flexibly, reduces simultaneously
Cost.
For reaching above-mentioned purpose, this utility model employs the following technical solutions:
A kind of New Distributed Control System bus line connecting structure, the master controller being mutually redundant and preparation controller with by master control
Connected using 2.4g wireless module between multiple i/o modules of device processed or preparation controller control, described 2.4g wireless module adopts
Sequence signal transmission means that dsss is wireless.
Described dsss is wireless, and sequence signal is operated in 2400～2483.5mhz industry, science and Medical Band, using star
Connected mode, speed can reach 3.2mb/s.
Described master controller and preparation controller adopt independent rack.
The chip that described 2.4g wireless module adopts is rfw302.
This utility model compared to the prior art relatively, possesses following advantage:
1st, installation is simple and convenient, and input/output module only need to access power supply and get final product work, without backboard or base plate.
2nd, any one input/output module damages, and does not interfere with other input/output modules, and system stability is reliable.
3rd, easy to maintenance, can wireless distantly located single input/output module parameter, also can radio upgrade module journey
Sequence.
4th, module transmission power scalable, each control station adopts independent rack, is difficult to be disturbed by other system and equipment,
Also interference will not be produced to other system and equipment.
In a word, this utility model is not only easy to install and use, improves system reliability, and extension flexibly, reduces simultaneously
Cost.
Brief description
Fig. 1 is the bus line connecting structure schematic diagram of conventional Distributed Control System.
Fig. 2 is the bus line connecting structure schematic diagram of this utility model Distributed Control System.
Specific embodiment
Below in conjunction with the accompanying drawings structural principle of the present utility model and operation principle are described in more detail.
As shown in Fig. 2 a kind of this utility model New Distributed Control System bus line connecting structure, the main control being mutually redundant
It is connected using 2.4g wireless module between device and preparation controller and multiple i/o modules of main controller or preparation controller control, institute
State 2.4g wireless module and adopt dsss wireless sequence signal transmission means.Described dsss is wireless, and sequence signal is operated in 2400～
2483.5mhz industry, science and Medical Band, using Y-connection mode, speed can reach 3.2mb/s.
As preferred implementation of the present utility model, described master controller and preparation controller adopt independent rack.No
Easily disturbed by other system and equipment, also will not produce interference to other system and equipment.
As preferred implementation of the present utility model, the chip that described 2.4g wireless module adopts is rfw302.More normal
433m wireless module, faster, data transmission security is higher for speed, greatly strengthen system stability.
Between this utility model master controller and system i/o module, wirelessly connect, flexibly and easily, expansible
Property strong, communication speed more traditional can bus and 485 buses improve more than 1 times, the also more traditional connection of the expansible quantity of i/o module
Mode improves more than 1 times, and on-site signal enters i/o module by terminal board.
Claims (4)
1. a kind of New Distributed Control System bus line connecting structure it is characterised in that: the master controller that is mutually redundant and standby control
It is connected using 2.4g wireless module between multiple i/o modules that device is controlled with main controller or preparation controller, described 2.4g is wireless
Module adopts dsss wireless sequence signal transmission means.
2. a kind of New Distributed Control System bus line connecting structure according to claim 1 it is characterised in that: described dsss
Wireless sequence signal is operated in 2400～2483.5mhz industry, science and Medical Band, using Y-connection mode, speed energy
Enough reach 3.2mb/s.
3. a kind of New Distributed Control System bus line connecting structure according to claim 1 it is characterised in that: described active and standby
The control station of controller and i/o module composition adopts independent rack.
4. a kind of New Distributed Control System bus line connecting structure according to claim 1 it is characterised in that: described 2.4g
The chip that wireless module adopts is rfw302.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620857280.2U CN205899365U (en) | 2016-08-09 | 2016-08-09 | Novel distributed control system bus connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620857280.2U CN205899365U (en) | 2016-08-09 | 2016-08-09 | Novel distributed control system bus connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205899365U true CN205899365U (en) | 2017-01-18 |
Family
ID=57781452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620857280.2U Active CN205899365U (en) | 2016-08-09 | 2016-08-09 | Novel distributed control system bus connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205899365U (en) |
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2016
- 2016-08-09 CN CN201620857280.2U patent/CN205899365U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |