JPS62236238A - Loop type data transmitting method - Google Patents

Loop type data transmitting method

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Publication number
JPS62236238A
JPS62236238A JP7919286A JP7919286A JPS62236238A JP S62236238 A JPS62236238 A JP S62236238A JP 7919286 A JP7919286 A JP 7919286A JP 7919286 A JP7919286 A JP 7919286A JP S62236238 A JPS62236238 A JP S62236238A
Authority
JP
Japan
Prior art keywords
address
data
station
transmitting
self
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
JP7919286A
Other languages
Japanese (ja)
Inventor
Yoshihisa Okamoto
岡本　善久
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP7919286A priority Critical patent/JPS62236238A/en
Publication of JPS62236238A publication Critical patent/JPS62236238A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To recognize the receiving response of respective stations at a transmit ting station even to a broadcasting communication by adding plural transmitting destination addresses onto a transmitting format, replacing the data coincident with a self-station address in the transmitting address to a special value at the time of receiving the said data and re-sending them to a transmission line. CONSTITUTION:The transmitting station of broadcasting data inserts the data from a terminal device into a data part I of a transmitting format at a frame generating circuit 3, inserts the broadcasting address from an address setting circuit 4 from a transmitting destination address DAI to a DAn and sends them to a transmission line. At a receiving station, a self-station address deciding circuit 6 decides above-mentioned addresses DA1-DAn, When they are coincident to a self-station address, the said data are received, a response information setting circuit 7 replaces the transmitting destination address equivalent to the self-station address to the special value for the response and resends it through the frame generating circuit 3 to the transmission line.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ループ状伝送路に接続された伝送装置相互間
のデータ伝送を行なうループ式データ伝送方法に関し、
特に回報通信の方法に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a loop data transmission method for transmitting data between transmission devices connected to a loop transmission line.
In particular, it relates to a method of broadcast communication.

〔従来の技術〕[Conventional technology]

従来、この種のデータ伝送方法において多数の局へ同一
データを送信する場合には、同報用アドレスを付加して
送信し、それについては確認応答は行なわない方法であ
った。Conventionally, in this type of data transmission method, when transmitting the same data to a large number of stations, a broadcast address was added to the data and no acknowledgment was sent.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来の回報通信方法では回報用アドレスを使用
しているので特定の複数局への同報通信が容易に行なえ
ず、また確認応答が行なわれないので通信の信頼性が低
下するという欠点があった。The above-mentioned conventional broadcast communication method uses a broadcast address, so it is not easy to broadcast to multiple stations, and the reliability of communication is reduced because no acknowledgment is sent. there were.

〔問題点を解決するための手段〕[Means for solving problems]

このような欠点を除去するために本発明は、データ伝送
装置をループ状に接続して相互間のデータ送受信を行な
うループ式データ伝送方法において、データ伝送装置よ
り伝送路に送出されるデータの各フレーム毎に１つの発
信元アドレスと２つ以上の送信先アドレスとを付加し、
フレーム受信時に送信先アドレスが自局アドレスと一致
した場合に一致したアドレスを特定の値に置換して再び
伝送路に送出するようにしたものである。In order to eliminate such drawbacks, the present invention provides a loop data transmission method in which data transmission devices are connected in a loop to transmit and receive data between them. Adding one source address and two or more destination addresses to each frame,
When the destination address matches the local address when receiving a frame, the matching address is replaced with a specific value and sent out again to the transmission path.

〔作用〕[Effect]

本発明においては、回報通信に対しても送信局で各局の
受信応答を認識することが可能となる。In the present invention, it becomes possible for the transmitting station to recognize the reception response of each station even for broadcast communication.

〔実施例〕〔Example〕

第１図は本発明に係わるループ式データ伝送方法の一実
施例で使用される伝送フォーマントを示すフォーマント
図である。第１図の伝送フォーマントは、同期ツー１８
１発信元アドレスＳＡ、送信先アドレスＤＡ１＝ＤＡｎ
およびデータ部■から成る。FIG. 1 is a formant diagram showing a transmission formant used in an embodiment of the loop data transmission method according to the present invention. The transmission form in Figure 1 is synchronous to 18
1 Source address SA, destination address DA1 = DAn
It consists of a data section and a data section■.

第２図は従来方法において使用される伝送フォーマット
を示すフォーマット図であり、同期ツー１８２発信元ア
ドレスＳＡ、同報通信用アドレスＧＡおよびデータ部■
から成る。FIG. 2 is a format diagram showing the transmission format used in the conventional method, showing the synchronization two 182 source address SA, the broadcast communication address GA, and the data section ■
Consists of.

第３図および第４図は本発明に係わるループ式データ伝
送方法の一実施例を説明するためのデータ送信局および
データ受信局を示す系統図である。FIGS. 3 and 4 are system diagrams showing a data transmitting station and a data receiving station for explaining an embodiment of the loop data transmission method according to the present invention.

第３図において、同報データの送信局は、伝送路からイ
ンタフェース１および同期回路２を介して受信したフレ
ームが空フレームの場合には、フレーム生成回路３で端
末装置からのデータを第１図の伝送フォーマットのデー
タ部Ｉに、アドレス設定回路４から出力される同報アド
レスを送信先アドレスＤＡＩからＤＡｎに挿入し、イン
タフェース５から伝送路に送出する。In FIG. 3, if the frame received from the transmission path via the interface 1 and the synchronization circuit 2 is an empty frame, the broadcast data transmitting station uses the frame generation circuit 3 to convert the data from the terminal device into the frame shown in FIG. The broadcast address outputted from the address setting circuit 4 is inserted into the data portion I of the transmission format of , and is sent from the interface 5 to the transmission path.

第４図のデータ受信局では、インタフェース回路１．同
期回路２を通って受信されたフレーム中の送信先アドレ
スＤＡ１”ＤＡｎを自局アドレス判定回路６で判定し、
自局アドレスと一致すれば該当データを受信し、端末装
置へ送出する。さらに、応答情報設定回路７で自局アド
レスに該当する送信先アドレスを応答用の特定値で置換
し、この特定値をフレーム生成回路３．インタフェース
回路５を経由して伝送路へ再送出する。In the data receiving station of FIG. 4, the interface circuit 1. The destination address DA1”DAn in the frame received through the synchronization circuit 2 is determined by the own station address determination circuit 6,
If the address matches the own address, the corresponding data is received and sent to the terminal device. Furthermore, the response information setting circuit 7 replaces the destination address corresponding to the local station address with a specific value for response, and this specific value is used in the frame generation circuit 3. It is retransmitted to the transmission line via the interface circuit 5.

以上のような操作が同報送信先の各局で繰り返され、上
記特定値が発信局へ返送されるため、発信局では、送信
したデータに対する各局の受信応答を認識することが可
能となる。The operations described above are repeated at each broadcast destination station, and the specific value is sent back to the transmitting station, so that the transmitting station can recognize each station's reception response to the transmitted data.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、伝送フォーマット上に複
数の送信先アドレスを付加し、該当データ受信時には送
信アドレス中で自局アドレスに一致したものを特定の値
に置換して伝送路に再送出することにより、同報通信に
対しても送信局で各局の受信応答を認識することが可能
となり、信頼性の高い通信が実現できる効果がある。ま
た、否定応答を返送した相手局に対しては再送すること
も容易となる効果もある。As explained above, the present invention adds multiple destination addresses to the transmission format, and when the corresponding data is received, the one in the transmission address that matches the local station address is replaced with a specific value and retransmitted to the transmission path. By doing so, it becomes possible for the transmitting station to recognize the reception response of each station even in the case of broadcast communication, which has the effect of realizing highly reliable communication. It also has the effect of making it easier to retransmit to the partner station that has sent back a negative response.

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

第１図は本発明に係わるループ式データ伝送方、法の一
実施例で使用される伝送フォーマットを示すフォーマン
ト図、第２図は従来方法において使用される伝送フォー
マットを示すフォーマット図、第３図および第４図は本
発明に係わるループ式データ伝送方法の一実施例を説明
するためのデータ送信局およびデータ受信局を示す系統
図である。 １．５・・・・インタフェース回路、２・・・・同期回
路、３・・・・フレーム生成回路、４・・・・アドレス
設定回路、６・・・・自局アドレス判定回路、７・・・
・応答情報設定回路。 第１図 第２図 第３図 第４図FIG. 1 is a formant diagram showing a transmission format used in an embodiment of the loop data transmission method according to the present invention, FIG. 2 is a format diagram showing a transmission format used in a conventional method, and FIG. FIG. 4 is a system diagram showing a data transmitting station and a data receiving station for explaining an embodiment of the loop type data transmission method according to the present invention. 1.5... Interface circuit, 2... Synchronization circuit, 3... Frame generation circuit, 4... Address setting circuit, 6... Own station address determination circuit, 7...・
-Response information setting circuit. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] データ伝送装置をループ状に接続して相互間のデータ送
受信を行なうループ式データ伝送方法において、前記デ
ータ伝送装置より伝送路に送出されるデータの各フレー
ム毎に１つの発信元アドレスと２つ以上の送信先アドレ
スとを付加し、前記フレーム受信時に送信先アドレスが
自局アドレスと一致した場合に一致したアドレスを特定
の値に置換して再び伝送路に送出することを特徴とする
ループ式データ伝送方法。In a loop data transmission method in which data transmission devices are connected in a loop to send and receive data between each other, each frame of data sent from the data transmission device to a transmission path has one source address and two or more loop-type data characterized in that when the frame is received and the destination address matches the local station address, the matching address is replaced with a specific value and sent out again to the transmission path. Transmission method.
JP7919286A 1986-04-08 1986-04-08 Loop type data transmitting method Pending JPS62236238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7919286A JPS62236238A (en) 1986-04-08 1986-04-08 Loop type data transmitting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7919286A JPS62236238A (en) 1986-04-08 1986-04-08 Loop type data transmitting method

Publications (1)

Publication Number Publication Date
JPS62236238A true JPS62236238A (en) 1987-10-16

Family

ID=13683110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7919286A Pending JPS62236238A (en) 1986-04-08 1986-04-08 Loop type data transmitting method

Country Status (1)

Country Link
JP (1) JPS62236238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2555222B2 (en) * 1989-09-14 1996-11-20 富士通株式会社 Network control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2555222B2 (en) * 1989-09-14 1996-11-20 富士通株式会社 Network control system

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