JPS58161552A - Monitor method of transmitting system - Google Patents
Monitor method of transmitting systemInfo
- Publication number
- JPS58161552A JPS58161552A JP57042979A JP4297982A JPS58161552A JP S58161552 A JPS58161552 A JP S58161552A JP 57042979 A JP57042979 A JP 57042979A JP 4297982 A JP4297982 A JP 4297982A JP S58161552 A JPS58161552 A JP S58161552A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- station
- status
- monitoring
- data
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
Abstract
Description
【発明の詳細な説明】
ａ 技術分野
本発明は一台の監視ステーションと複数台の伝送ステー
ションを伝送路でループ状に結び、同報通信を行なう伝
送システムの監視方法に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method for monitoring a transmission system in which one monitoring station and a plurality of transmission stations are connected in a loop through a transmission line to perform broadcast communication.
ｂ 技術的背景
回報通信は複数の伝送ステー７１７間のデータ伝送に於
て、任意の伝送ステージ冒ンが他の複数の伝送ステーシ
ョンに対して同一データを伝送する伝送方法である。b. Technical Background Reverse communication is a transmission method in which, in data transmission between a plurality of transmission stations 717, any one transmission stage transmits the same data to other transmission stations.
第１図は同報通信による一般的な伝送システムの構成図
である。同図に於て、複数の伝送ステーション１〜３と
監視ステーション４を伝送路５でループ状に結び、制御
用計算機６、プロセスコントローラ７、入出力装置８、
及び監視用計算機又はプロセスコントローラ９郷をそれ
ぞれの伝送ステージ冒７１〜３と監視ステージ菖ン４に
結合シて伝送システムを構成している。この様な構成の
伝送システムに於て、各伝送ステージ璽ン１〜３は順次
に送信権を得て他の伝送ステージ冒ンにデータ伝送を行
なうが、従来の伝送システムでは次の様な欠点があった
。FIG. 1 is a block diagram of a general transmission system using broadcast communication. In the figure, a plurality of transmission stations 1 to 3 and a monitoring station 4 are connected in a loop through a transmission path 5, and a control computer 6, a process controller 7, an input/output device 8,
A transmission system is constructed by connecting a monitoring computer or a process controller 9 to each of the transmission stages 71 to 3 and the monitoring stage 4. In a transmission system with such a configuration, each transmission stage 1 to 3 sequentially obtains transmission rights and transmits data to other transmission stages, but conventional transmission systems have the following drawbacks: was there.
（１）受信ステージ目ンは回報通信フレームに対して応
答を返さない為受信ステージ目ンに異常があつても送信
ステーションにわからない。(1) Since the receiving stage does not return a response to the broadcast communication frame, even if there is an abnormality in the receiving stage, the transmitting station does not know.
（２） 監ａ ステージ冒ンで全伝送ステージ冒ンノ
状態を集中監視する場合、回報通信とは別に監視ステー
ションが各伝送ステーションに対して個々にポーリング
を行わなければなら々い。その為、回報通信のデータ伝
送が大幅に遅れる。(2) Monitoring a If stage access is used to centrally monitor the status of all transmission stages, the monitoring station must poll each transmission station individually in addition to broadcast communication. As a result, data transmission for broadcast communications is significantly delayed.
Ｃ発明の目的
本発明の目的は、各伝送ステーションの状態を示すステ
ータス信号を伝送フレームに含めて伝送し、監視ステー
ションで全伝送ステーションの状態を所定の周期で集中
監視し、各伝送ステーションの状態監視のためのデータ
伝送で通常の同報通信の伝送周期に対し大きな影響を与
えず、各伝送ステーションで −全伝送ステー
ションの状態を監視できる伝送システムの監視方法を提
供することである。C.Object of the Invention An object of the present invention is to transmit a status signal indicating the status of each transmission station by including it in a transmission frame, centrally monitor the status of all transmission stations at a predetermined period at a monitoring station, and monitor the status of each transmission station. To provide a method for monitoring a transmission system, which allows data transmission for monitoring to monitor the status of all transmission stations at each transmission station without significantly affecting the transmission cycle of normal broadcast communication.
ｄ 発明のｅ要
本発明は、制御用計算機、プロセスコントローラ、及び
入出力装置にそれぞれ接続した伝送ステーションと、一
台の監視ステーションを伝送路で送信権を得て同報通信
を行う伝送システムに於て、送信権を得た前記伝送ステ
ーションが送信する伝送フレーム中に自ステーションの
状態を示すステータス信号を付加して送信し、前記監視
ステージ日ンが全伝送ステーションの状態を監視すると
共に所定の周期で前記全伝送ステーシロンの状態の監視
結果の情報を一つの伝送フレームで一括して各伝送ステ
ーションへ伝送する伝送システムの監視方法である。d.Summary of the Invention The present invention provides a transmission system in which a transmission station connected to a control computer, a process controller, and an input/output device, and one monitoring station are used to acquire transmission rights on a transmission path and perform broadcast communication. In this case, the transmission station that has obtained the transmission right transmits a transmission frame by adding a status signal indicating the status of its own station, and the monitoring stage monitors the status of all transmission stations and performs a predetermined transmission frame. This is a method for monitoring a transmission system, in which information on the monitoring results of the states of all the transmission stations is periodically transmitted to each transmission station in one transmission frame.
ｅ 発明の実施例
本発明を適用する伝送システムの全体構成は第１図と同
様である。第２図は本発明による伝送スｆ −ジョン１
〜３及び監視ステージ璽ン４の制御ブロック図である。e. Embodiment of the Invention The overall configuration of a transmission system to which the present invention is applied is the same as that shown in FIG. FIG. 2 shows a transmission system f-section 1 according to the present invention.
3 and a control block diagram of the monitoring stage 4. FIG.
同図に於て、１１．１４は入出力の伝送路、１２は受信
部、１３は送信部、１５は伝送制御部、１６はデータバ
ス、１７は状態検出部で伝送ステーションの状態を検出
する検出部２１゛とその検出信号を記憶するメモリ１８
よりなる。In the figure, 11 and 14 are input/output transmission paths, 12 is a reception section, 13 is a transmission section, 15 is a transmission control section, 16 is a data bus, and 17 is a state detection section that detects the state of the transmission station. Detector 21' and memory 18 for storing its detection signal
It becomes more.
２２は伝送ステーション内の伝送制御以外の制御を行な
うステーション制御部、２３社受信データ及び送信デー
タを保持するデータメモリ、２４はインターフェース部
、２５は制御用計算機及びプｏセｘ＝ｙントロー２ＩＩ
Ｉの外部機器等で構成する。22 is a station control unit that performs control other than transmission control within the transmission station; 23 is a data memory that holds received data and transmitted data; 24 is an interface unit; 25 is a control computer and controller 2II
It consists of I's external devices, etc.
尚、監視ステーションの場合、状態検出部１７は不要で
ある。Incidentally, in the case of a monitoring station, the state detection section 17 is not necessary.
上記構成の伝送ステーション及び監視ステーションの動
作を以下に述べる。The operation of the transmission station and monitoring station having the above configuration will be described below.
（１） 伝送ステーションの動作
伝送路１１からの信号は受信部１２で受信し、受信し九
受信データは伝送制御部１５によりデータバス１６含介
してデータメモリ２３に格納する。(1) Operation of the transmission station The signal from the transmission path 11 is received by the receiving section 12, and the received data is stored in the data memory 23 by the transmission control section 15 via the data bus 16.
伝送ステーションが送信権を得ると、伝送制御部１５が
データバス１６ｔ−経てデータメモリ２３から送信デー
タを読み出し、所定の伝送フレームを構成して送信部１
３から伝送路１４へ送出する。When the transmission station obtains the right to transmit, the transmission control unit 15 reads the transmission data from the data memory 23 via the data bus 16t, composes a predetermined transmission frame, and sends the transmission data to the transmission unit 1.
3 to the transmission path 14.
このとき、状態検出部１７によシ検出された伝送ステー
ションの状態を示す信号１９によりステータス信号を構
成し前記伝送フレームに付加して送出する。データの送
信が終了すると送信権委−フレームを送出し、送信権を
次の伝送ステージｌンヘ渡し自ステーションは受信・中
継状態に戻る。At this time, a status signal is constructed from a signal 19 indicating the status of the transmission station detected by the status detection section 17, and is added to the transmission frame and sent out. When the data transmission is completed, the station sends a transmission authority frame, passes the transmission authority to the next transmission stage, and returns to the reception/relay state.
又、所定の周期で監視ステージ目ンから送信される全伝
送ステーションの状態の監視結果の情報を受信してその
情報をデータメモリ２３の所定のエリアに格納すると共
にリセット信号２０によシメ毫り１Ｂの状態検出信号を
クリアする。It also receives information on the monitoring results of the status of all transmission stations transmitted from the monitoring stage at a predetermined period, stores the information in a predetermined area of the data memory 23, and resets it by the reset signal 20. Clear the 1B status detection signal.
（２）監視ステーションの動作
監視ステージーンでは他の伝送ステーションから送出さ
れた伝送フレームを受信すると、伝送制御部１５が同伝
送フレーム−中のステータス信号をデータメモリ２３の
固定エリアに格納する。ステーション制御部２２は周期
的にデータメモリ２３を参照し、各伝送ステーションの
ステータスを所定のフォーマットにし伝送制御部１５へ
送信要求を出力する。伝送制御部１５は、同送信要求に
従いデータメモリ２３より変換された送信データを読出
して伝送フレームを構成し、各伝送ステーションへ送信
する。(2) In the operation monitoring stage of the monitoring station, when a transmission frame sent from another transmission station is received, the transmission control unit 15 stores the status signal in the transmission frame in a fixed area of the data memory 23. The station control section 22 periodically refers to the data memory 23, converts the status of each transmission station into a predetermined format, and outputs a transmission request to the transmission control section 15. The transmission control unit 15 reads the converted transmission data from the data memory 23 in accordance with the transmission request, forms a transmission frame, and transmits it to each transmission station.
第３図は上述、本発明による伝送システムの伝送フレー
ムの送信順序を示したタイムチャートである。同図中、
ＳＣ’ＡＮは伝送フレームを、ＢＦは送信権委譲゛フレ
ームを表し、監視周期Ｔの間は監視ステーションは送信
権を得ても直ちに次の伝送ステーションへ送信権を委譲
する。FIG. 3 is a time chart showing the transmission order of transmission frames in the transmission system according to the present invention. In the same figure,
SC'AN represents a transmission frame, and BF represents a transmission right transfer frame. During the monitoring period T, even if the monitoring station obtains the transmission right, it immediately delegates the transmission right to the next transmission station.
第４図は伝送フレームの構成図である。即ち、伝送フレ
ームの先Ｗ！ｉ７ラグ８Ｆ、コマンドｃｚ送信ステーシ
ョンアドレスｓＡｚ送信ステーションの状態を示すステ
ータスＳＴＳ、データのメモリアドレスＡＤＨ、データ
ＤＩ−Ｄ３２チェ７クコー）”ＣＲＣ。FIG. 4 is a configuration diagram of a transmission frame. That is, the end of the transmission frame W! i7 lag 8F, command cz sending station address sAz status indicating the status of the sending station STS, data memory address ADH, data DI-D32 check 7 code)” CRC.
伝送フレームの後端フラグＥＦ、で構成する。又、ステ
ータスＳＴ８は同図（ｂ）に示す様［１６ピツトで構威
し、その内の７ビツトで伝送ステーションの状態を表す
。第１表に各ビットの意味を示す。It consists of the rear end flag EF of the transmission frame. Furthermore, the status ST8 consists of 16 bits, as shown in FIG. 2(b), and 7 bits represent the status of the transmission station. Table 1 shows the meaning of each bit.
（以下余白）
館 １ 表
ｆ 発明の効果
本発明によれば各伝送ステーションの状態監視のために
通常のデータ伝送周期に大きな影響を与えずに監視する
ことが可能となり、又、監視ステージ目ンの状ｔｔ−周
期的に同一タイミングで監視し、その監視結果を各伝送
ステーションで知ることが可能となり、各伝送ステージ
冒ンに接続した機器も全伝送ステージ冒ンの状態を読出
して制御することを可能とした伝送システムの監視方法
を提供することができる。(Space below) Building 1 Table f Effects of the Invention According to the present invention, it is possible to monitor the status of each transmission station without significantly affecting the normal data transmission cycle, and it is also possible to monitor the status of each transmission station without significantly affecting the normal data transmission cycle. tt- It is possible to periodically monitor at the same timing and know the monitoring results at each transmission station, and the equipment connected to each transmission stage can also read and control the status of all transmission stages. It is possible to provide a method for monitoring a transmission system that enables the following.
第１図は本発明が適用される同報通信による一般的々伝
送システムの構成図、第２図は本発明による伝送ステー
ション及び監視ステーションの制御ブロック図、第３図
は本発明による伝送システムの伝送フレームの送信順序
を示したタイムチャート、第４図は伝送フレームの構成
図である。
１〜３・・・伝送ステーション
４・・・監視ステーション
５．１１．１４・・・伝送路
６．７，９．２５・・・制％用計算機及びプロセスコｙ
）ｏ −”）８・・・入出力装置 １２・・・受信
部１３・・・送信部 １５・・・伝送制御部１
６・・・データバス １７・・・状態検出部１８・
・・メモリ ２１・・・検出部２２・・・ス
テーション制御部
２３・・・データメモリ ２４・・・インターフェー
ス部（７３１７） 代理人 弁理士 則 近 憲 佑
（ほか１名）第１図
第２図FIG. 1 is a block diagram of a general transmission system using broadcast communication to which the present invention is applied, FIG. 2 is a control block diagram of a transmission station and a monitoring station according to the present invention, and FIG. 3 is a diagram of a transmission system according to the present invention. FIG. 4 is a time chart showing the transmission order of transmission frames, and is a configuration diagram of transmission frames. 1 to 3...Transmission station 4...Monitoring station 5.11.14...Transmission line 6.7, 9.25...Percentage control computer and process controller
) o −”) 8... Input/output device 12... Receiving section 13... Transmitting section 15... Transmission control section 1
6... Data bus 17... Status detection section 18.
...Memory 21...Detection section 22...Station control section 23...Data memory 24...Interface section (7317) Agent Patent attorney Kensuke Chika (and 1 other person) Fig. 1 Fig. 2
Claims (1)
にそれぞれ接続した伝送ステージｌンと、一台の監視ス
テージ璽ンを伝送路でループ状に結び、前記伝送ステー
ジ冒ンが順次に送信権を得て同報通信を行なう伝送シス
テムに於て、送信権を得た前記伝送ステージ目ンが送信
する伝送フレーム中に自ステーションの状態を示すステ
ータス信号を付加して送信し、前記監視ステーションが
全伝送ステーションの状態上監視すると共Ｋ、所定の周
期で前記全伝送ステーションの状態の監視結果の情報を
一つの伝送フレームで一括して各伝送ステージ目ンヘ伝
送する伝送システムの監視方法。A transmission stage connected to a control computer, a process controller, and an input/output device, respectively, and one monitoring stage are connected in a loop through a transmission path, and each of the transmission stages sequentially obtains transmission rights. In a transmission system that performs broadcast communication, the transmission stage that has acquired the right to transmit adds a status signal indicating the status of its own station to the transmission frame it sends, and the monitoring station sends it to all transmission stations. A method for monitoring a transmission system, in which information on the results of monitoring the states of all the transmission stations is collectively transmitted in one transmission frame to each transmission stage at a predetermined period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57042979A JPS58161552A (en) | 1982-03-19 | 1982-03-19 | Monitor method of transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57042979A JPS58161552A (en) | 1982-03-19 | 1982-03-19 | Monitor method of transmitting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58161552A true JPS58161552A (en) | 1983-09-26 |
| JPH0213871B2 JPH0213871B2 (en) | 1990-04-05 |
Family
ID=12651151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57042979A Granted JPS58161552A (en) | 1982-03-19 | 1982-03-19 | Monitor method of transmitting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58161552A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0758765A (en) * | 1993-06-30 | 1995-03-03 | Nec Corp | Inter-node information collection system for ring network |
| JPH07131457A (en) * | 1993-10-29 | 1995-05-19 | Nec Corp | Data communication system |
-
1982
- 1982-03-19 JP JP57042979A patent/JPS58161552A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0758765A (en) * | 1993-06-30 | 1995-03-03 | Nec Corp | Inter-node information collection system for ring network |
| JPH07131457A (en) * | 1993-10-29 | 1995-05-19 | Nec Corp | Data communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0213871B2 (en) | 1990-04-05 |
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