JPS6041346A - Terminal equipment - Google Patents

Terminal equipment

Info

Publication number
JPS6041346A
JPS6041346A JP59149434A JP14943484A JPS6041346A JP S6041346 A JPS6041346 A JP S6041346A JP 59149434 A JP59149434 A JP 59149434A JP 14943484 A JP14943484 A JP 14943484A JP S6041346 A JPS6041346 A JP S6041346A
Authority
JP
Japan
Prior art keywords
text
terminal device
host
polling
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
Application number
JP59149434A
Other languages
Japanese (ja)
Other versions
JPS6348214B2 (en
Inventor
Kenji Shioda
憲司 塩田
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59149434A priority Critical patent/JPS6041346A/en
Publication of JPS6041346A publication Critical patent/JPS6041346A/en
Publication of JPS6348214B2 publication Critical patent/JPS6348214B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
    • 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]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Small-Scale Networks (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE:To improve the line use efficiency by transferring data, which has a relatively small data volume but requires a quick responsiveness, with one polling and transferring data, which has a relatively large data volume but does not require a quick responsiveness, with plural pollings. CONSTITUTION:When receiving a polling from a host computer 1, a terminal equipment A3 sends a text in a transmission buffer 8 to the computer 1 through a transmitting/receiving circuit 4. In this case, a quick responsiveness is required, and the whole of the text is transmitted with one polling. When the computer 1 sends a polling to a terminal equipment B11, the equipment B11 sends a text in a transmission buffer to the computer 1. In this case, a quick responsiveness is not required, and a transmission continuing flag is set, and the equipment B11 divides the text by, for example, two-block units to transmit it, and a data link is broken by a repeating code thereafter. Thus, the equipment A3 receives the polling from the computer 1 without waiting for a long time.

Description

【発明の詳細な説明】 〔発明の利用分野〕 この発明は、特にマルチポイント接続でホストコンピュ
ータとデータ転送を行なう端末装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention particularly relates to a terminal device that transfers data to a host computer through a multipoint connection.

〔発明の背景〕[Background of the invention]

従来、一般に、データ量は少ないが即応性を要求する間
合せ応答処理と、データ量は多いが即応性は要求しない
ファイル転送処理とはマルチポイント接続することは無
く、ファイル転送処理はポイント、トウ、ポイント接続
をとっていた。Conventionally, in general, there was no multi-point connection between interim response processing, which requires a small amount of data but requires quick response, and file transfer processing, which requires a large amount of data but does not require quick response. , I was taking a point connection.

従来技術では間合せ応答処理、ファイル転送処理という
データ量および応答性の要求度が異なるデータ転送処理
を同−回線上でマルチポイント接続することは、一台の
端末がファイル転送に入ると、それが終了するまで他端
末へホストサービスが行かないため実用上困難であった
。In conventional technology, multi-point connections for data transfer processes with different data volumes and responsiveness requirements, such as arranging response processing and file transfer processing, on the same line are difficult to achieve when one terminal starts a file transfer. This was difficult in practice because host services would not be available to other terminals until the process was completed.

〔発明の目的〕[Purpose of the invention]

この発明の目的とするところは上記の如き従来の問題点
を除去するものであり、全端末へのホストサービスを低
下することなく、間合せ応答およびファイル転送といっ
た処理形態の異なる端末の同−回線上への接続、あるい
は同一端末装置において間合せ応答、ファイル転送等が
可能な複合オンライン処理機能を持った端末装置を同一
回線上にマルチポイント接続可能な端末装置を提供する
ことにある。The purpose of this invention is to eliminate the above-mentioned conventional problems, and to enable simultaneous processing of terminals with different processing modes, such as delayed responses and file transfers, without degrading host services to all terminals. The object of the present invention is to provide a terminal device capable of multi-point connection on the same line, or terminal devices having complex online processing functions capable of performing scheduled responses, file transfers, etc. on the same terminal device.

〔発明の概要〕[Summary of the invention]

この発明の特徴とするところは、ホストと端末装置の間
でデータ転送する場合、比較的データ量は少ないが即応
性を要求するデータは一回のホストサービス（ポーリン
グ）で一括データ転送するが、比較的データ量は多いが
即応性な要求しないデータはテキストを適当なテキスト
ブロックに分割し、複数回のポーリングでデータ転送を
行なうことにより、全端末に対するホストサービスを低
下することなく、間合せ応答およびファイル転送という
処理形態の異なる端末を同一回線にマルチポイント接続
可能にすることである。The feature of this invention is that when data is transferred between a host and a terminal device, data that requires quick response even though the amount of data is relatively small is transferred in bulk with one host service (polling). For data that requires a relatively large amount of data but does not require a quick response, the text is divided into appropriate text blocks and the data is transferred by multiple polling, thereby providing a timely response without degrading the host service to all terminals. The goal is to enable multi-point connection of terminals with different processing modes such as file transfer and file transfer to the same line.

〔発明の実施例〕[Embodiments of the invention]

次に本発明の実施例につき図面を用いて詳細に説明する
。第１図は本発明と比較するための従来のホストと端末
装置間のデータ転送の制御手順の例であり、第２図は本
発明による端末装置を使用したホストと端末装置間のデ
ータ転送の制御手順の例を示している。Next, embodiments of the present invention will be described in detail using the drawings. FIG. 1 is an example of a conventional data transfer control procedure between a host and a terminal device for comparison with the present invention, and FIG. 2 is an example of a data transfer control procedure between a host and a terminal device using a terminal device according to the present invention. An example of a control procedure is shown.

第５図はホストと端末装置との接続および本発明による
端末装置の構成例を示している。１はホストコンピュー
タ、３は端末装置Ａ１１１は端末装置Ｂ・であり２はホ
ストと端末装置を接続する分岐回線である。４はホスト
１から端末装置Ａ３へ伝送されるテキストを受信し、端
末装置Ａ３からホスト１へ伝送されるテキストを送信す
る送受信回路、５は送受信回路４によって受信されたテ
キストを保持する受信バッファ、６は受信バッファ５に
保持された受信テキストを出力する出力機器、７は受信
バッファに受信されたテキストが、次のセレクションに
も継続しており、ホストからの複数のセレクションで端
末装置Ａに対するテキストが完結することを示す受信継
続フラグである。１０は端末装置６からホスト１へ転癲
するデータを入力するだめの入力装置、８は入力装置１
０から入力されたテキストを保持する送信バッファ、９
は送信バッファ８に保持されたテキストが次のポーリン
グにも継続しており、ホストからの複数のポーリングで
端末装置Ａからのテキスト送信が完結することを示す送
信継続フラグである。FIG. 5 shows a connection between a host and a terminal device and an example of the configuration of the terminal device according to the present invention. 1 is a host computer, 3 is a terminal device A111 is a terminal device B, and 2 is a branch line connecting the host and the terminal device. 4 is a transmitting/receiving circuit that receives the text transmitted from the host 1 to the terminal device A3, and transmits the text transmitted from the terminal device A3 to the host 1; 5 is a receiving buffer that holds the text received by the transmitting/receiving circuit 4; 6 is an output device that outputs the received text held in the reception buffer 5; 7 is an output device that outputs the received text held in the reception buffer 5; and 7, the text received in the reception buffer continues in the next selection; This is a reception continuation flag indicating that the process has been completed. 10 is an input device for inputting data to be transferred from the terminal device 6 to the host 1; 8 is an input device 1;
Send buffer that holds text entered from 0, 9
is a transmission continuation flag indicating that the text held in the transmission buffer 8 continues even in the next polling, and that the text transmission from the terminal device A is completed by multiple polls from the host.

ホスト１は適当な時間々隔をおいて端末装置からホスト
へのテキストがあるか否かを問うボＩＪングを端末装置
Ａおよび端末装置Ｂへ送信している。端末装置は自局宛
のポーリングに対して送（ｆｉするテキストが有れば送
＆１し、無ければ終了応答（ＥＯＴ　）を送信する。以
上の前提のもとに第１図、第２図について説明する。こ
こで端末装＊Ａは間合せ応答の如き即応性を要求する処
理を実行しており、端末装置Ｂはファイル転送の如き即
応性を要求しない処理を実行している。第１図に示すよ
うに従来はホストと端末Ｂがファイル転送等の大量のデ
ータ転送に入ると、それが終了するまで端末装置Ａの送
信要求は待たされる。尚、１２は端末装置Ａ３送信要求
であり、１６は端末装置Ｂ１１送信要求である。The host 1 sends an IJ message to the terminal A and B at appropriate intervals to inquire whether there is a text from the terminal to the host. The terminal device sends (&1) in response to polling directed to its own station (if there is a text to be sent (fi), it sends &1, and if there is no text, it sends an end response (EOT). Based on the above premise, regarding Figures 1 and 2 Let me explain.Here, terminal device *A is executing a process that requires immediate response, such as an on-time response, and terminal device B is executing a process that does not require immediate response, such as file transfer. Conventionally, when the host and terminal B start transferring a large amount of data such as file transfer, the transmission request from terminal device A is made to wait until the transfer is completed.Note that 12 is the transmission request for terminal device A3; 16 is a transmission request from the terminal device B11.

従りて従来は間合せ応答とファイル転送等は即応性が異
なるため分岐回線で接続すること＆マ一般にしなかった
。Therefore, in the past, because of the difference in responsiveness between timed responses and file transfers, it was generally not necessary to connect them using branch lines.

第２図はホストと本発明を使用した端末装置とのデータ
転送を示している。端末装置Ａ　３　＆’１人力機器１
０から間合せデータを入力し、送信ノ々ッファ８に送信
テキストが存在し送信要求待ちの場合に、ホストから自
局宛てのポーリングを受信すると、送信バッファ８内の
テキストを送受信回路４を介してホスト１へ送信する。FIG. 2 shows data transfer between a host and a terminal device using the present invention. Terminal device A 3 &'1 Human powered device 1
When the timing data is input from 0 and a transmission text is present in the transmission buffer 8 and a transmission request is being waited for, when a poll addressed to the local station is received from the host, the text in the transmission buffer 8 is sent via the transmission/reception circuit 4. and send it to host 1.

この場合、送信継続フラグをセットしないので、−回の
ポーリングで全テキスト（５ＴＸ−ＥＴＸ　）が送信さ
れる。次に永ストは端末装置Ｂ１１ヘポーリングを送信
する。端末装置Ｂ１１は既に７アイル転送データを入力
し、送信要求待ちの場合、送信バッファ内のテキストを
ホストへ送信する。In this case, since the transmission continuation flag is not set, the entire text (5TX-ETX) is transmitted by - times of polling. Next, the permanent host sends a poll to the terminal device B11. If the terminal device B11 has already input the 7-aisle transfer data and is waiting for a transmission request, it transmits the text in the transmission buffer to the host.

この場合、即応性は不要であり送信継続フラグがセット
されるため、端末装置Ｂ１１は例えば２ブロック単位で
テキストを分割し、２テキストブロツク（ＳＴＸ　−Ｅ
ＴＢ　）送信後、中断符号（ＥＯＴ　）で一旦データリ
ンクを切断する。その後ホストは端末装置Ａ３をポーリ
ングするため、次の間合せ電文の送信要求待ちになって
いた端末装置Ａ３は長く待たされることなくホストのポ
ーリングサービスを受けることができる。In this case, since immediate response is not required and the transmission continuation flag is set, the terminal device B11 divides the text into two blocks, for example, and divides the text into two text blocks (STX-E
TB) After transmission, the data link is temporarily disconnected at the interruption code (EOT). After that, the host polls the terminal device A3, so that the terminal device A3, which has been waiting for a request to send the next makeshift message, can receive the host's polling service without having to wait for a long time.

〔発明の効果〕〔Effect of the invention〕

以上述べた如き構成であるから本発明にあっては一般に
データ量は少ないが応答性が要求される間合せ応答処理
と、データ量は多いが応答性は比較的要求されないファ
イル転送という性格の異なる処理を、ホストと端末装置
間のホストサービスを落とすことなく同一回線に分岐接
続することが可能となるため、回線数の低減および回線
使用効率の向上を図ることができる効果を有するもので
あ″る。Because of the configuration described above, the present invention has two different characteristics: makeshift response processing, which generally involves a small amount of data but requires responsiveness, and file transfer, which involves a large amount of data but requires relatively little responsiveness. Since it is possible to branch and connect processing to the same line without disrupting host services between the host and the terminal device, it has the effect of reducing the number of lines and improving line usage efficiency. Ru.

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

第１図は従来のホストと端末装置間のデータ転送の制御
手順説明図、第２図は本発明実施例による端末装置を使
用したホストと端末装置間のデータ転送の制御手順説明
図、第３図は本、発明の一実施例を示す端末装置のブロ
ック図およびホストとの接続図である。 １・・・ホストコンピュータ、２・・・分岐回線、６・
・・端末装置Ａ、　４・・・送受信回路、５・・・受信
バッファ、　６・・・出力機器、７・・・受信継続フラ
グ、　８・・・送信バッファ、９・・・送信継続フラグ
、１０・・・入力機器、１１・・・端末装置Ｂ０ 代理人弁理十　怠　腫　明　夫FIG. 1 is an explanatory diagram of a conventional control procedure for data transfer between a host and a terminal device, FIG. 2 is an explanatory diagram of a control procedure for data transfer between a host and a terminal device using a terminal device according to an embodiment of the present invention, and FIG. The figure is a block diagram of a terminal device and a connection diagram with a host, showing an embodiment of the present invention. 1...Host computer, 2...Branch line, 6.
...Terminal device A, 4... Transmission/reception circuit, 5... Reception buffer, 6... Output device, 7... Reception continuation flag, 8... Transmission buffer, 9... Transmission continuation flag, 10... Input device, 11... Terminal device B0 Representative Patent Attorney 10 Akio

Claims (1)

【特許請求の範囲】[Claims] ホストコンピュータの制御のもとに複数台の′端末装置
がホストコンピュータとデータ転送を行なうマルチポイ
ント接続において、端末装置が送信するデータに対して
ホストコンピータの即応性を要求するか否かを記憶する
手段と、前記記憶された情報に従って、即応性を要求し
ない場合は送信テキストを複数１のポーリングに分割し
てホストコンピュータに送信することによって端末装置
の送信データ量に依存することなくホストのポーリング
サービスを全端末均等にする手段を設けたことを特徴と
する端末装置。In a multipoint connection where multiple terminal devices transfer data with the host computer under the control of the host computer, stores whether or not the host computer requires prompt response to data sent by the terminal device. and according to the stored information, if prompt response is not required, the host's polling service is provided without depending on the amount of data transmitted by the terminal device by dividing the transmitted text into a plurality of polls and transmitting them to the host computer. What is claimed is: 1. A terminal device characterized in that it is provided with means for equalizing all terminals.
JP59149434A 1984-07-20 1984-07-20 Terminal equipment Granted JPS6041346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59149434A JPS6041346A (en) 1984-07-20 1984-07-20 Terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59149434A JPS6041346A (en) 1984-07-20 1984-07-20 Terminal equipment

Publications (2)

Publication Number Publication Date
JPS6041346A true JPS6041346A (en) 1985-03-05
JPS6348214B2 JPS6348214B2 (en) 1988-09-28

Family

ID=15475025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59149434A Granted JPS6041346A (en) 1984-07-20 1984-07-20 Terminal equipment

Country Status (1)

Country Link
JP (1) JPS6041346A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6449707A (en) * 1987-08-18 1989-02-27 Sanyo Electric Co Fluid bearing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6449707A (en) * 1987-08-18 1989-02-27 Sanyo Electric Co Fluid bearing device

Also Published As

Publication number Publication date
JPS6348214B2 (en) 1988-09-28

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