JPS58198939A - Loop transmission system - Google Patents

Loop transmission system

Info

Publication number
JPS58198939A
JPS58198939A JP57082599A JP8259982A JPS58198939A JP S58198939 A JPS58198939 A JP S58198939A JP 57082599 A JP57082599 A JP 57082599A JP 8259982 A JP8259982 A JP 8259982A JP S58198939 A JPS58198939 A JP S58198939A
Authority
JP
Japan
Prior art keywords
loop
relay
station
loop transmission
central synchronization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57082599A
Other languages
Japanese (ja)
Inventor
Hirofumi Kira
吉良　廣文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57082599A priority Critical patent/JPS58198939A/en
Publication of JPS58198939A publication Critical patent/JPS58198939A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To make a connection and a disconnection between a loop transmission system and a double loop and to perform mutual backup, by providing a central synchronous station with a switching means between a single loop and the double loop. CONSTITUTION:When power sources POW1 and POW2 are turned on in different order, the 1st relay K1 and the 2nd relay K2 have priority corresponding to the turn-on order of the power sources POW1 and POW2; and the 1st and the 2nd central synchronous stations 1 and 2 are connected in series for the single loop, but only one station is put in operation. When the power supply of the 1st or 2nd central synchronous station in operation with the single loop is turned off, the line is switched to the central synchronous station on the other normal power-source side by the sequence of relays K1 and K2. Further, if a line error is detected in the single-loop operation, a contact LER1 or LER2 is made and the 3rd relay K3 is energized to reconstitute the double loop. Namely, the system where the line error occurs is disconnected and put in degenerate operation.

Description

【発明の詳細な説明】 本発明は、ループ伝送路を介して情報を伝送するループ
伝送方式のループ２重化に対するループ伝送方式に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a loop transmission method for loop duplication of a loop transmission method for transmitting information via a loop transmission path.

第１図は、従来のデータ伝送システムの一例を示すブロ
ック図で、ＩＵ第１中央同期ステーショ　　　　“ン、
１０．１１・・・１ｎはそれぞれ通信ステーションであ
る。FIG. 1 is a block diagram showing an example of a conventional data transmission system, in which the IU first central synchronization station,
10, 11...1n are communication stations, respectively.

このようなループ伝送システムを応用した、例えば鉄鋼
プラント等の分散形制御システムでは、伝送システムに
対する依存度が商＜、伝送方式に対する高信頼度化が要
請される。In a distributed control system such as, for example, a steel plant, in which such a loop transmission system is applied, the dependence on the transmission system is less than the quotient, and the transmission system is required to have high reliability.

ループ伝送方式の高信頼度化として、第２図示のような
ループ全二重化などがある。このような全二血化ループ
伝送方式では、双方のループが全く同一の通（ｉｉｔ′
ｆｔ行う方式と、一方のループが主要な通信を行い、他
方のループが補助的な通信を行う方式との二重式に分け
らｎる。To improve the reliability of the loop transmission system, there is a full duplex loop as shown in the second diagram. In such a dual-loop transmission system, both loops have exactly the same communication (iit'
There are two types of communication methods: a method in which one loop performs main communication, and a dual method in which one loop performs auxiliary communication.

＋１１者は一般にコストパ７オマンスが悪く、実現性に
乏しい。後者では、プラントがフル稼動で高性能を得る
為には、二重ループ双方が必要であるが、他方がダウン
したとき、別の他方がバックアップし、又は一方のみで
縮退運転’ｔ−”Ｉ能にすることができる。Those with +11 generally have poor cost performance and poor feasibility. In the latter case, both double loops are necessary for the plant to operate at full capacity and achieve high performance, but when the other goes down, the other can back up, or only one can operate in a degenerate manner. can be made functional.

また鉄鋼プラント等の制御システムでは、調整期間を経
て、システム稼動に至るまでに、機能毎に、別々にする
方式がとられる（例えば計Ｗ機系と制卸系など）。この
ような場合に於いても、ループ伝送方式を最初２系列に
分け、最後に１系列に結合できる二重ループ結合方式が
必要となる。Furthermore, in control systems for steel plants and the like, after an adjustment period and before system operation, a system is adopted in which each function is separated (for example, a metering machine system and a control system). Even in such a case, a double loop coupling method is required, which can first divide the loop transmission method into two streams and finally combine them into one stream.

本発明は、従来技術の問題に対して、ループ伝送方式と
二重化ループ結合、分離し相互バックアップを可能なら
しめる為になされた、二重化ループ結合方式を用いたル
ープ伝送方式を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art by providing a loop transmission method using a loop transmission method, a duplex loop combination, and a dual loop combination method, which is made to enable mutual backup by separating the loop transmission method and duplex loop combination. do.

以下本発明の一実施例を第８図、第４図を参照して説明
する。第８図は、本発明のループ結合系統會示した系統
図で、２恵ループとして運転する場合は第１中央同期ス
テーション１と第１系統１人が接続され、かつ第２中央
同期ステーション２と８ｇ２系統２人が接続され、また
１重ループとして運転する場合は、接点に、が第８図に
示す方向に接続されて第１中央同期ステーション１及び
第２中央同期ステーション２は直列２電化された形でル
ープが構成される。An embodiment of the present invention will be described below with reference to FIGS. 8 and 4. FIG. 8 is a system diagram showing a loop-coupled system according to the present invention. When operating as a two-way loop, the first central synchronization station 1 and one person in the first system are connected, and the second central synchronization station 2 and When two 8g2 systems are connected and operated as a single loop, the contacts are connected in the direction shown in Figure 8, and the first central synchronization station 1 and the second central synchronization station 2 are electrified in series. A loop is constructed in this way.

＃！４図は、第８図の結合系統ｔＦｊＪ換るためのシー
ケンス図を示すもので、第１リレーに１及び第２リレー
に２は各々上記第１．第２中央同期ステーション１．２
のバイパス用制御１１Ｊレー、７ｇ８１）レーに５は１
重と２重ループの切換制御リレーを示し、第１．第２ス
イツチＳＷ１　、ＳＷ２は、各々、１ｊｊＥ、２重切換
用のマニュアルスイッチを示す。また接点ＬＥＲ１，Ｌ
ＥＲ２及びＰＯＷＮｌ、ＰＯＷＮ２は第１．第２中央同
期ステーション１，２で検出されるラインエラ出力及び
電源ダウン出力を示している。尚８Ｗ１と５Ｗ２ｉｉ：
相補的に動作する１１ ものとする。#! FIG. 4 shows a sequence diagram for changing the coupling system tFjJ in FIG. Second central synchronization station 1.2
Control for bypass of 11J ray, 7g81) ray 5 is 1
A heavy and double loop switching control relay is shown, and the first. The second switches SW1 and SW2 represent manual switches for 1jjE and double switching, respectively. Also, contact LER1, L
ER2 and POWNl, POWN2 are the first. The line error outputs and power down outputs detected at the second central synchronization stations 1, 2 are shown. Furthermore, 8W1 and 5W2ii:
11 that operate in a complementary manner.

本発明の動作を以下説明する。まず本発明の２血ループ
運転の場合にはスイッチ８Ｗ２が投入された状態を保つ
。第１．第２中央同期ステーション１．２の電源ＰＯＷ
１　、ＰＯＷ２が投入されれば、第８リレー、に３が動
作し、第１系統１人と第２系統２人が独立分離された状
態となる。さらに第１、第２リレーに１．に２は動作し
、バイパス接点に１．に２けそれぞれ、第１．第２中央
同期ステーション１，２にそれぞれ接続される。The operation of the present invention will be explained below. First, in the case of the two-blood loop operation of the present invention, the switch 8W2 is kept in the closed state. 1st. Power supply POW of the second central synchronization station 1.2
1. When POW2 is turned on, relay 3 operates in the eighth relay, and one person in the first system and two people in the second system become independently separated. Furthermore, 1. 2 is activated, and 1 is applied to the bypass contact. 2 numbers each, 1st. They are connected to second central synchronization stations 1, 2, respectively.

この状態に於て、第１．第２中央同期ステーション１又
は２の第１．第２の電源断が検出されれば接点ＰＯＷＮ
Ｉ又はＰＯＷＮ２が開路状態となり、第８リレーに５Ｆ
ｉ不動作になる。これＫよって接点に６によりループは
第３図示のように１重ループに再構成さ扛ると同時に、
第１．第２リレーに１、に２のうちいずれかが不動作と
なり、第１．第２中央同期ステーション１．２はいずれ
かがバイパス状態となる。In this state, the first. The first . of the second central synchronization station 1 or 2. If the second power failure is detected, contact POWN
I or POWN2 becomes open, and 5F is sent to the 8th relay.
i It becomes inoperable. As a result of this, the loop is reconfigured into a single loop as shown in the third diagram at the contact point 6, and at the same time,
1st. Either one of the second relay 1 and 2 becomes inoperative, and the first relay becomes inoperable. One of the second central synchronization stations 1.2 is in a bypass state.

次に本発明の１重ループ運転の場合には第１スイツチＳ
Ｗ１が投入された状態を保つ。すなわ秋第１．第２中央
同期ステーション１．２の電ＨがＰＯＷＩ　、ＰＯＷ２
が投入されても第８リレーに６は不動作状ａ′ｆｒ続け
、１血ループの状態を保つ。ここで特に第１．＠２２中
央同ステ〜ジョン１，２の’！！［ＰＯＷＩ、ＰＯＷ２
が同時に投入された場合は、第２リレーに２に接続され
た遅延素子りによって第１リレーに１が優先的に動作状
態となシ、第１リレーに１が動作し、第２リレーに２が
不動作を続ける。電源ＰＯＷＩ、ＰＯＷ２の投入順が異
る場合は、第１リレーに１、第２リレーに２は、該電源
ＰＯＷ１．ＰＯＷ２の投入順に従った優先Ｉｆｔ持つ。Next, in the case of the single loop operation of the present invention, the first switch S
Keep W1 turned on. Sunawa Autumn 1st. The power of the second central synchronization station 1.2 is POWI, POW2
Even if the 8th relay is turned on, the 8th relay 6 continues to be in an inoperative state a'fr, and the state of the 1 blood loop is maintained. Especially the first one. @22 Central Station ~ John 1 and 2'! ! [POWI, POW2
If both are turned on at the same time, the delay element connected to 2 in the second relay causes 1 to operate preferentially in the first relay, 1 in the first relay, and 2 in the second relay. continues to be inoperative. If the order of turning on the power supplies POWI and POW2 is different, 1 for the first relay and 2 for the second relay are the power supplies POW1. It has priority Ift according to the order of input of POW2.

すなわち、１血ループの場合は、第１．第２中央向期ス
テー７ヨン１，２は直列接続となるが、いずれか一方の
みが運転状態となる。That is, in the case of 1 blood loop, the 1st. The second central synchronization station 7 1 and 2 are connected in series, but only one of them is in operation.

１血ループで運転中の第１又は第２中央同期ステーショ
ンのいずれかの電源が断となれば第１又は第２リレーに
１．に２のシーケンスにより他方の非′離源側の中央同
期ステーションに切換えられる。ｔたｌ慮ループ運転中
にて、ラインエラが検出されれば、接点ＬｈＲ１又はＬ
ＥＲ２は閉路状態になり、第８リレーに６が働らき、２
重ループに再構成さｎる。すなわち、ラインエラを発生
した系統は切離され、縮退運転の構成となる。If either the first or second central synchronization station, which is operating in a single loop, loses power, the first or second relay will be activated. 2 sequence to switch to the other non-source central synchronization station. If line error is detected during loop operation, contact LhR1 or L
ER2 becomes a closed circuit state, 6 acts on the 8th relay, and 2
It is reconfigured into a heavy loop. That is, the system in which the line error has occurred is disconnected, resulting in a degenerate operation configuration.

以上１重と２重ループ運転の説明を要約すると次の様に
なる。（第１）１重ループ設定の場合において、電源が
しゃ断されると直列２重化の切換となり金糸が運転され
、ラインエラがあると二重ループ化の切換となり縮退運
転になる。（第２）二重ループ設定の場合において電源
がしゃ断されると１重ループ化となり全系運転され、ラ
インエラがあるとループの再構成をせず縮退運転となる
。The above explanation of single loop and double loop operation can be summarized as follows. (First) In the case of the single loop setting, when the power is cut off, the series duplication is switched and the gold thread is operated, and if there is a line error, the double loop is switched and the degenerate operation occurs. (Second) In the case of a double loop setting, if the power is cut off, the system becomes a single loop and the entire system is operated, and if there is a line error, the loop is not reconfigured and the system enters degenerate operation.

なお、上記実施例の第８図、第４図では、電気回路に於
ける系統図で、説明したが、これに限定されることなく
第１．第２系統ＩＡ、２Ａが光伝送ループであり、元ス
イッチ等て結合しても同様の効果を得ることができる。Although FIGS. 8 and 4 of the above embodiment are explained using system diagrams of electric circuits, the explanation is not limited to this. The second systems IA and 2A are optical transmission loops, and the same effect can be obtained even if they are combined using a source switch or the like.

又第８図のりレージ−ケンスは、ＩＣ等の電子部品で構
成されても、同様の効果を得ることができる。Furthermore, even if the glue receiver shown in FIG. 8 is constructed of electronic components such as ICs, similar effects can be obtained.

以上記載のように本発明によれば、ループ伝送方式の１
恵ルーフ化と２電ル←プ化による相互バックアップ、縮
退ループ化が極めて容易となり、伝送系としての信頼度
が同上できる効果がある。As described above, according to the present invention, one of the loop transmission methods is
Mutual backup and degenerate loop formation are extremely easy due to the configuration of the electric roof and the two-power loop configuration, which has the effect of increasing the reliability of the transmission system.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来形のループ伝送方式金示すブロック図、第
２図は従来形の全二重ループ化のループ伝送方式を示す
ブロック図、第８図は、本発明の一実施例を示す二重ル
ープ結合方式を有するループ伝送方式のシーケンス図、
第４図は本発明の一実施例を示す二重ループ結合方式の
接続切換のシーケンス図である。 １・・・第１中央同期ステーション、２・・・第２中央
同期ステーション、ＩＡ・・・第１系統、２Ａ・・・第
２系統、Ｋ１・・・第１リレー、Ｋ２・・・第２リレー
、Ｋ５・・・第８リレー、Ｄ・・・遅延素子、ＰＯＷｌ
・・・第１電源、ＰＯＷ２・・・第２電源、ＰＯＷＮｌ
・・・第１電源ダウン出力、ＰＯＷＮ２・・・第２電源
ダウン出力、８Ｗ１・・・第１スイツチ、ＳＷ２・・・
第２スイツチ、ＬＥＲｌ・・・第１ラインエラ出力、Ｌ
ＢＨ２・・・第２ラインエラ出力、１０．１１．Ｉｎ・
・・通信ステーション。 なお、図中同一符号＃ｉ同−又は相当部分をボす。 代理人　葛野信−（ほか１名） Ｉｌｌ　　図 ＠　２　図 ｌｌｌ３図 第　　４　　図 手続補正書（自発） ５７１０７ 昭和　　年　　月　　日 ２、ヅｄ明の名称 ループ伝送方式 ；３．Ｐ山市を逼ると 東（’Ｉ−との関係　　　特許出願人 代表者片由仁へ部 １、代理人 ５、補正の対象 （１）明細書の発明の詳細な説明の欄 （２）明細書の図面の簡単な説明の欄 ６、補正の内容 （１）明細書第４頁第１４行から第１５行目に「ＰＯＷ
Ｎｌ、ＰＯＷＮ２Ｊとあるのを［ＰＤＷＮｌ、ＰＤＷＮ
２Ｊと補正する。 （２）明細書第５頁第１０行目の「ＰＯＷＮＩ又はＰＯ
ＷＮ２Ｊとあるのを［ＰＤＷＮｌ又はＰＤＷＮ２　Ｊと
補正する。 （３）明細書第６頁第１６行目Ｋ「非電源側」とあるの
を「正常′電源側」と補正する。 （４）明細書第７頁第５行目、Ｋ「となり全系が運転さ
れ、」とあるのを「がなされ全系運転が続行さ株」と補
正する。Fig. 1 is a block diagram showing a conventional loop transmission method, Fig. 2 is a block diagram showing a conventional full-duplex loop transmission method, and Fig. 8 is a block diagram showing an embodiment of the present invention. Sequence diagram of loop transmission method with heavy loop coupling method,
FIG. 4 is a sequence diagram of connection switching in a double-loop coupling system showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...1st central synchronization station, 2...2nd central synchronization station, IA...1st system, 2A...2nd system, K1...1st relay, K2...2nd Relay, K5...8th relay, D...delay element, POWl
...First power supply, POW2...Second power supply, POWNl
...First power down output, POWN2...Second power down output, 8W1...First switch, SW2...
2nd switch, LERl... 1st line error output, L
BH2...2nd line error output, 10.11. In・
...Communication station. Note that the same reference numeral #i in the drawings or equivalent parts are omitted. Agent Makoto Kuzuno (and 1 other person) Ill Figure @ 2 Figure 3 Figure 4 Figure procedural amendment (voluntary) 57107 Showa year month day 2, Dud Ming's name loop transmission method; 3. Relation to Pyama City and East ('I- To Patent Applicant Representative Katayuni Part 1, Agent 5, Subject of Amendment (1) Column for Detailed Description of the Invention in the Specification (2) Specification Column 6 for a brief explanation of the drawings in the document, contents of amendment (1) “POW
Nl, POWN2J [PDWNl, PDWN
Correct it to 2J. (2) “POWNI or PO” on page 5, line 10 of the specification
WN2J is corrected to [PDWNl or PDWN2 J. (3) On page 6, line 16 of the specification, K "non-power supply side" is corrected to "normal power supply side." (4) On page 7, line 5 of the specification, the phrase K, "Then, the entire system is operated," is amended to read, "Then, the entire system continues to operate."

Claims (3)

【特許請求の範囲】[Claims] （１）ループ伝送方式に於て、中央同期ステーションが
１重及び２重ループの切換手段を有することを特徴とす
るループ伝送方式。(1) A loop transmission system characterized in that the central synchronization station has means for switching between single and double loops. （２）前記ループ伝送方式の中央同期ステーションが、
前記１重及び２＊ループの切換手段で１重ループ構成に
接続された段階にて直列２重化手段とし、電源断によっ
て相補的にバイパス可能なバイパス手段を有する特許請
求範囲第１項記載のループ伝送方式。(2) The central synchronization station of the loop transmission method is
Claim 1, wherein the switching means for the single and 2* loops is used as a series duplication means when connected to the single loop configuration, and has a bypass means that can be bypassed in a complementary manner when the power is cut off. Loop transmission method. （３）前記ループ伝送方式の中央同期ステーションが、
１恵ループ構成の段階にて伝送路障害を検出したとき、
２重ループ構成に切換わる切替手段を督する特許請求範
囲第１項記載のループ伝送方九（４）前記ループ伝送方
式の中央同期ステーションが、２虫ループ構成の段階に
て、電源断によって１！１！ループ構成に切換える切替
手段を有する特許請求範囲第１項記載のループ伝送方式
。(3) The central synchronization station of the loop transmission method is
When a transmission path failure is detected at the stage of 1 Kei loop configuration,
(4) The central synchronization station of the loop transmission method controls the switching means for switching to the double loop configuration. !1! The loop transmission system according to claim 1, further comprising a switching means for switching to a loop configuration.
JP57082599A 1982-05-14 1982-05-14 Loop transmission system Pending JPS58198939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57082599A JPS58198939A (en) 1982-05-14 1982-05-14 Loop transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57082599A JPS58198939A (en) 1982-05-14 1982-05-14 Loop transmission system

Publications (1)

Publication Number Publication Date
JPS58198939A true JPS58198939A (en) 1983-11-19

Family

ID=13778942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57082599A Pending JPS58198939A (en) 1982-05-14 1982-05-14 Loop transmission system

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