CN204229189U - Adopt the redundant looped network communication system of optical-fibre communications - Google Patents
Adopt the redundant looped network communication system of optical-fibre communications Download PDFInfo
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- CN204229189U CN204229189U CN201420311275.2U CN201420311275U CN204229189U CN 204229189 U CN204229189 U CN 204229189U CN 201420311275 U CN201420311275 U CN 201420311275U CN 204229189 U CN204229189 U CN 204229189U
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- photoelectric conversion
- looped network
- interface
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- optical
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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
Adopt a redundant looped network communication system for optical-fibre communications, photoelectric conversion device is provided with three interfaces, and one is RS485 interface, has two-way optical fiber interface in addition; Controller is connected by PROFIBUS cable with the RS485 interface of a photoelectric conversion device respectively by its DP interface carried with distributed I/O device; The mode of redundant looped network is adopted to be connected to by optical cable on respective two-way optical fiber interface between two photoelectric conversion devices; 24V D.C. regulated power supply is 1mm by three core diameters
2service cable be connected with photoelectric conversion device; Four PROFIBUS Bussing connectors are separately positioned on photoelectric conversion device, distributed I/O device and controller.Good effect of the present utility model is: loss is low, strong interference immunity, security performance are high, network connects for redundant looped network, even if certain some optical cable disconnects, communication becomes linear forms normal communication automatically, after optical cable is repaired, can automatically become to redundant looped network again.
Description
Technical field
The utility model relates to industrial communication technical field, particularly a kind of redundant looped network communication system adopting optical-fibre communications.
Background technology
For industrial network, communication quality is extremely important, particularly for widely used fieldbus, and the stability direct relation production efficiency of communication and production safety.This proposes very high requirement to the transmission of signal, Signal transmissions can be divided into wire transmission and wireless transmission, wire transmission, again from transmission medium, is divided into electric medium (common cable) to transmit and physical medium (plastic optical fiber, glass optical fiber etc.) transmission.The still shielded cable transmission generally used in current bus level network at the scene.Cable is due to the problem of wire rod self character, transfer rate is lower, transmission range is restricted, be flooded with in electromagnetic environment for use, the efficiency that electromagnetic interference more makes common cable transmit reduces, even occur communication failure, if infield is positioned at area with more lightning activities, terminal device also may be destroyed because of thunderbolt.
For in building glass plated film industry, generally adopt magnetron sputtering coating method continuous seepage coated glass at present.And continuous coating system is commonly used is direct current and the medium frequency magnetron sputtering power supply of 30-200KW.Because the frequency of its filming equipment is high, power large, cause being flooded with powerful electromagnetic field around equipment, network communication is more easily disturbed, and can not guarantee the steady production of production line thus, also increases to the maintenance workload of maintainer simultaneously.
Utility model content
Technical problem to be solved in the utility model is for the jamproof deficiency of the common communication cable in strong-electromagnetic field and limited transmission distance problem, increase a kind of new communication media, thus ensure the reliability and stability of communication, strengthen the antijamming capability of network communication.
For solving the problems of the technologies described above, the utility model realizes as follows: a kind of redundant looped network communication system adopting optical-fibre communications, comprises two photoelectric conversion devices, one piece of 24V D.C. regulated power supply, a set of distributed I/O device, a set of controller, four PROFIBUS Bussing connectors, glass optical fiber and PROFIBUS cables; Described photoelectric conversion device is provided with three interfaces, and one is RS485 interface, has two-way optical fiber interface in addition; Described controller is connected by described PROFIBUS cable with the RS485 interface of a photoelectric conversion device respectively by its DP interface carried with described distributed I/O device; The mode of redundant looped network is adopted to be connected to by optical cable on respective two-way optical fiber interface between two described photoelectric conversion devices; Described 24V D.C. regulated power supply is 1mm by three core diameters
2the service cable of is connected with photoelectric conversion device; Four PROFIBUS Bussing connectors are separately positioned on photoelectric conversion device, distributed I/O device and controller.
Good effect of the present utility model is:
1, loss is low.Loss is the key property of transmission medium, and it only determines the distance of relaying needed for signal transmission.Optical fiber has low-loss feature as the transmission medium of light signal.
2, strong interference immunity.Carrier wave in Optical Fiber Transmission is light wave, and it is the electromagnetic wave of very high frequency, far away higher than the frequency that general electric wave communication uses, so without interruption, and especially forceful electric power interference.Simultaneously because light wave is restrainted within optical fiber, therefore radiationless, environmentally safe, transmission signal No leakage, strong security.
3, security performance is high.The glass material that optical fiber adopts, non-conductive, anti-lightning strike; Optical Fiber Transmission can not produce spark as traditional cable because of short circuit or loose contact.
4. network connects for redundant looped network, even if certain some optical cable disconnects, communication becomes linear forms normal communication automatically, after optical cable is repaired, can automatically become to redundant looped network again.
Accompanying drawing explanation
Fig. 1 is the structural drawing of optical fiber;
Fig. 2 is application example of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, a kind of redundant looped network communication system adopting optical-fibre communications described in the utility model, adopts distributed I/O control device.Main parts size comprises: two photoelectric conversion devices (model is OLM/G12), 1, one piece of 24V D.C. regulated power supply 2, a set of distributed I/O device (ET200M device) 3, a set of controller 4, four PROFIBUS Bussing connectors 5, glass optical fiber 6 and PROFIBUS cables 7.Wherein photoelectric conversion device 1 has three interfaces, and one is RS485 interface, has two-way optical fiber interface in addition, and the signal transmitted by shielded cable is converted to light signal and transmits by photoelectric conversion device 1.PROFIBUS cable 7 adopts purple shielded twisted pair.Controller 4 adopts Siemens S7400.
As shown in Figure 1, glass optical fiber 6 adopts armouring 8 core multimode glass fiber (containing spare fibre), and glass optical fiber 6 comprises the fibre core 61, coating 62, cushion 63, enhancement Layer 64, the crust 65 that once wrap up from the inside to the outside.
And install according to following connected mode:
(1) controller 4, distributed I/O device are connected by PROFIBUS cable with the RS485 interface of photoelectric conversion device 1 respectively by its DP interface carried;
(2) two pieces of photoelectric conversion devices 1 adopt the mode of redundant looped network to be connected to by optical cable on the two-way optical fiber interface of photoelectric conversion device 1;
(3) 24V D.C. regulated power supply 2 is by three core 1mm
2 service cable is that photoelectric conversion device is powered.
The advantage of this kind of communication system is adopted to be:
1. is around the equipment producing strong-electromagnetic field, and signal transmission rate is high and communication signal stable.
2. with only adopt PROFIBUS cable as compared with communication media, at employing optical cable and PROFIBUS cable as in the communication network of communication media, its transmission range is farther and loss is low.
3. network connects for redundant looped network, even if certain some optical cable disconnects, communication becomes linear forms normal communication automatically, after optical cable is repaired, can automatically become to redundant looped network again.
4. later maintenance cost is low.Due to advantages such as optical cable corrosion resistance and good, anti-interference are good, non-conductive, radiationless, environmentally safes, be far longer than common PROFIBUS cable its serviceable life.
Claims (4)
1. one kind adopts the redundant looped network communication system of optical-fibre communications, it is characterized in that, comprising: two photoelectric conversion devices, one piece of 24V D.C. regulated power supply, a set of distributed I/O device, a set of controller, four PROFIBUS Bussing connectors, glass optical fiber and PROFIBUS cables; Described photoelectric conversion device is provided with three interfaces, and one is RS485 interface, has two-way optical fiber interface in addition; Described controller is connected by described PROFIBUS cable with the RS485 interface of a photoelectric conversion device respectively by its DP interface carried with described distributed I/O device; The mode of redundant looped network is adopted to be connected to by optical cable on respective two-way optical fiber interface between two described photoelectric conversion devices; Described 24V D.C. regulated power supply is 1mm by three core diameters
2the service cable of is connected with photoelectric conversion device; Four PROFIBUS Bussing connectors are separately positioned on photoelectric conversion device, distributed I/O device and controller.
2. a kind of redundant looped network communication system adopting optical-fibre communications according to claim 1, it is characterized in that, described glass optical fiber adopts armouring 8 core multimode glass fiber, and glass optical fiber comprises the fibre core, coating, cushion, enhancement Layer, the crust that once wrap up from the inside to the outside.
3. a kind of redundant looped network communication system adopting optical-fibre communications according to claim 1, is characterized in that, described PROFIBUS cable adopts purple shielded twisted pair.
4. a kind of redundant looped network communication system adopting optical-fibre communications according to claim 1, is characterized in that, described controller adopts Siemens S7400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311275.2U CN204229189U (en) | 2014-06-11 | 2014-06-11 | Adopt the redundant looped network communication system of optical-fibre communications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311275.2U CN204229189U (en) | 2014-06-11 | 2014-06-11 | Adopt the redundant looped network communication system of optical-fibre communications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204229189U true CN204229189U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420311275.2U Expired - Fee Related CN204229189U (en) | 2014-06-11 | 2014-06-11 | Adopt the redundant looped network communication system of optical-fibre communications |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107566042A (en) * | 2017-08-28 | 2018-01-09 | 北京卓越信通电子股份有限公司 | A kind of implementation method of PROFIBUS redundant looped networks fiber optical transceiver |
| CN107682084A (en) * | 2017-09-29 | 2018-02-09 | 浙江群力电气有限公司 | A kind of photoelectric communication conversion equipment and photoelectric communication system |
-
2014
- 2014-06-11 CN CN201420311275.2U patent/CN204229189U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107566042A (en) * | 2017-08-28 | 2018-01-09 | 北京卓越信通电子股份有限公司 | A kind of implementation method of PROFIBUS redundant looped networks fiber optical transceiver |
| CN107566042B (en) * | 2017-08-28 | 2019-12-13 | 北京卓越信通电子股份有限公司 | implementation method of PROFIBUS redundant looped network optical fiber transceiver |
| CN107682084A (en) * | 2017-09-29 | 2018-02-09 | 浙江群力电气有限公司 | A kind of photoelectric communication conversion equipment and photoelectric communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20200611 |