JPS62122438A - Control signal transfer system - Google Patents

Control signal transfer system

Info

Publication number
JPS62122438A
JPS62122438A JP26294285A JP26294285A JPS62122438A JP S62122438 A JPS62122438 A JP S62122438A JP 26294285 A JP26294285 A JP 26294285A JP 26294285 A JP26294285 A JP 26294285A JP S62122438 A JPS62122438 A JP S62122438A
Authority
JP
Japan
Prior art keywords
terminal
signal
frame
signal frame
terminal equipment
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
JP26294285A
Other languages
Japanese (ja)
Inventor
Fumio Oki
沖　文郎
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 JP26294285A priority Critical patent/JPS62122438A/en
Publication of JPS62122438A publication Critical patent/JPS62122438A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To receive a control signal from a terminal equipment by providing a means combining a transmission frame and sending it and a means receiving the signal frame from the terminal equipment to a control equipment side. CONSTITUTION:When a control equipment CNT sends a control signal to a terminal equipment, the signal frame is combined by the operation of a processing unit CPU, the result is set to a signal frame transmitter TR, which sends the said signal frame to a transmission line L0. A terminal equipment T0 receives the said signal frame at its signal frame reception buffer BUF. A terminal equipment number designating a terminal equipment for the reception is included in the received signal frame and the designated terminal number and the own terminal equipment number are compared by a comparator EX. When the both are coincident, a command is given to a transmission data buffer TB to store the transmission data in a buffer BUF, where the transmission frame is generated and the result is sent to the next terminal equipment T1 via a transmission line L1. Thus, the control equipment CNT transmits/receives the control signal to and from each terminal equipment.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は制御装置と複数の端末を単一の伝送路でループ
状に接続して制御信号の送受を行う制御信号転送方式に
関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a control signal transfer method in which a control device and a plurality of terminals are connected in a loop through a single transmission path to transmit and receive control signals. .

〔従来の技術〕[Conventional technology]

従来、制御装置と複数の端末の間で制御信号の送受を行
う場合、一般には制御信号対応にケーブルを設ける方式
や制御信号をシリアルデータに変換し、少数のケーブル
により送受するという方式％式％ 〔発明が解決しようとする問題点〕 上述した従来の制御信号転送方式の前者の方式では、多
数の端末が離れた位置にある場合あるいは制御信号の種
類が多い場合などに経済的でないという欠点があり、ま
た、後者の方式では、シリアルデータの変換装置の構成
が複雑であるという欠点があった。Conventionally, when transmitting and receiving control signals between a control device and multiple terminals, there is generally a method of providing a cable for the control signal, or a method of converting the control signal into serial data and transmitting and receiving it using a small number of cables. [Problems to be Solved by the Invention] The former method of the conventional control signal transfer method described above has the disadvantage that it is not economical when many terminals are located at distant locations or when there are many types of control signals. However, the latter method has the drawback that the configuration of the serial data converter is complicated.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

本発明の制御信号転送方式は、制御装置側に信号フレー
ムを組み立てて送信する手段と、端末からの信号フレー
ムを受信する手段とを備え、端末側に信号フレームを受
信する手段と、この手段によって得られた受信フレーム
に含まれる端末番号と自端末番号の一致を検出しフレー
ムのデータ部を格納する手段と、自端末あての信号フレ
ームに変えて自端末からの信号フレームを送信する手段
と、自端末あて以外の信号フレームを後位へ転送する手
段とを備え、上記制御装置から端末へ制御信号を送信す
ることによシ上記端末からの制御信号を受信し得るよう
にしたものである。The control signal transfer method of the present invention includes means for assembling and transmitting signal frames on the control device side, and means for receiving signal frames from a terminal, and means for receiving signal frames on the terminal side, and a means for receiving signal frames from a terminal. means for detecting a match between the terminal number included in the obtained received frame and the own terminal number and storing the data part of the frame; and means for transmitting a signal frame from the own terminal instead of a signal frame addressed to the own terminal; and means for transmitting signal frames other than those addressed to the own terminal to a subsequent device, so that control signals can be received from the terminal by transmitting control signals from the control device to the terminal.

〔作用〕[Effect]

本発明においては、制御装置から端末へ制御信号を送信
することにより、端末からの制御信号を受イａする。In the present invention, a control signal from the terminal is received by transmitting the control signal from the control device to the terminal.

〔実施例〕〔Example〕

図は本発明による制御イａ号転送方式の一実施例を示す
ブロック図で、説明に必要な部分のみを示す。The figure is a block diagram showing an embodiment of the control item A transfer method according to the present invention, and only the parts necessary for explanation are shown.

図において、ＣＮＴは制御装置、Ｔｏ、Ｔｌ、Ｔｓは端
末で、この制御装置ＣＮＴと端末Ｔｏ−Ｔａ間は単一の
伝送路Ｌｏ、Ｌｘ〜Ｌｓでループ状に接続され、制御信
号の送受を行うように構成されている。In the figure, CNT is a control device, and To, Tl, and Ts are terminals. The control device CNT and the terminals To and Ta are connected in a loop through a single transmission line Lo, Lx to Ls, and transmit and receive control signals. is configured to do so.

そして、制御装置ＣＮＴは処理装置ＣＰＵとこの処理装
置ＣＰＵに接続された信号フレーム送信器ＴＲおよび信
号フレーム受信器ＲＣによシ構成されている。ここで、
この信号フレーム送信器Ｔ几は信号フレームを組立てて
送信する手段を構成し、また、信号フレーム受信器ＲＣ
は端末Ｔ３からの信号フレームを受信する手段を構成し
ている。The control device CNT is composed of a processing device CPU, a signal frame transmitter TR and a signal frame receiver RC connected to the processing device CPU. here,
This signal frame transmitter T constitutes a means for assembling and transmitting a signal frame, and the signal frame receiver RC
constitutes means for receiving signal frames from terminal T3.

一方、ループ状に接続された端末ＴＯ〜Ｔ２はそれぞれ
、信号フレーム受信バッファＢＵＦと自端末番号との比
較器ＥＸおよび自端末あての受信データバッファＲＢ、
送信データバッファＴＢより構成されている。そして、
信号フレーム受信バッファＢＵＦは信号フレームを受信
する手段を構成し、比較器ＥＸおよび受信データバッフ
ァＲＢは受信フレームに含まれる端末番号と自端末番号
の一致を検出しフレームのデータを格納する手段を構成
し、また、送信データバッファＴＢおよび信号フレーム
受信バッファＢＵＦは自端末あテノ信号フレームに変え
て自端末からの信号フレームを送信する手段と自端末あ
て以外の信号７レームを後位へ転送する手段を構成して
いる。On the other hand, each of the terminals TO to T2 connected in a loop includes a comparator EX between the signal frame reception buffer BUF and its own terminal number, a reception data buffer RB for its own terminal,
It consists of a transmission data buffer TB. and,
The signal frame reception buffer BUF constitutes a means for receiving a signal frame, and the comparator EX and the reception data buffer RB constitute a means for detecting a match between the terminal number included in the reception frame and its own terminal number and storing the data of the frame. In addition, the transmission data buffer TB and the signal frame reception buffer BUF are a means for transmitting a signal frame from the own terminal instead of a teno signal frame, and a means for transmitting 7 signal frames other than those addressed to the own terminal to a subsequent device. It consists of

つぎにこの図に示す実施例の動作を説明する。Next, the operation of the embodiment shown in this figure will be explained.

まず、制御装置ｃＮＴが端末に制御信号を送信する際に
は、処理装置ｃ）’Ｕの動作によシ伯号フレームの組み
立てを行って信号フレーム送信器ＴＩ（、に設定する。First, when the control device cNT transmits a control signal to the terminal, the processing device c)'U assembles a frame and sets it in the signal frame transmitter TI(,).

そして、この信号フレーム送信器ＴＲ，ｉｉこのも号フ
レームを伝送路Ｌｏに送４ｍする。Then, this signal frame transmitter TR,ii sends this second frame to the transmission path Lo for 4 m.

つぎに、端末′ｖＯでは、この信号フレームを信号７レ
ーム受信バツノアＢＵＦに受信する。（−して、この受
信した信号フレームには着信させる端末を指定する端末
番号か含まれている。この指定された端末番号と自分の
端末番号を比較器ＥＸによシ比較する。Next, the terminal 'vO receives this signal frame in the signal 7 frame receiving unit BUF. (The received signal frame includes a terminal number that designates the terminal to receive the call.The designated terminal number and the own terminal number are compared by the comparator EX.

ここで、もし両者が一致すれば受信データバッファＲＨ
に指示を出し、受信フレームのデータ部を格納する。そ
して、その後、送信データバッファＴＢに指示を出して
送信データを４６号フレーム受信バッファＢＵＦに格納
して送信フレームを作成し、次端末Ｔ１に伝送路Ｌｌを
経由して送信する。また、比較結果が不一致の場合には
、信号フレーム受信バッファｌ３ＵＦに受信した信号フ
レームをその才ま送信する。Here, if the two match, the receive data buffer RH
and stores the data part of the received frame. Thereafter, an instruction is issued to the transmission data buffer TB, the transmission data is stored in the No. 46 frame reception buffer BUF, a transmission frame is created, and the transmission frame is transmitted to the next terminal T1 via the transmission path Ll. Further, if the comparison result is a mismatch, the received signal frame is immediately transmitted to the signal frame reception buffer l3UF.

そして、端末Ｔｌおよび端末Ｔ！では上述の端末Ｔｏと
同様の処理を行うので、制御装置ＣＮ　’ｌ’の信号フ
レーム受信器ｋＬＣには、この制御装置ＣＮＴから送信
した信号フレームを受信した端末からの信号フレームが
受信される。And terminal Tl and terminal T! Since the same processing as the terminal To described above is performed, the signal frame receiver kLC of the control device CN 'l' receives the signal frame from the terminal that received the signal frame transmitted from the control device CNT.

かくして、制御装置ＣＮ’ｌ’は各端末とｔｒｉｌｌ銅
１（ｉ、Ｈ号の送受を行うことができる。In this way, the control device CN'l' can send and receive trill copper 1 (i, H) signals to and from each terminal.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば、＆　ｉ□ｒａな
手段を用いることなく、制御装置から端末へ制御信号を
送信することによシ端末からの制御信号を受信するよう
にした簡単な構成によって、多数の制御信号の送受を多
数の端末と制御装置の間で単一の伝送路を使って経済的
に実現することができるので、実用上の効果は極めて大
でろる。As explained above, according to the present invention, there is a simple method for receiving control signals from a terminal by transmitting a control signal from a control device to a terminal without using any imaginary means. Depending on the configuration, it is possible to economically transmit and receive a large number of control signals between a large number of terminals and a control device using a single transmission path, so the practical effects are extremely large.

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

図は本発明の一実施例を示すブロック図である。 ＣＮＴ・・拳・制御装置、ＣＰＵ・・―・処理装置、几
Ｃ・・・嗜信号フレーム受信器、ＴＲ・・・・信号フレ
ーム送信器、ＬＯ〜Ｌ８・・・・伝送路、ＴＯ〜Ｔ３・
・・・端末、ＢＵＦ・・・・信号フレーム受信バッファ
、ＥＸ・・・・比較ｉ、ＲＢ・ψ・・受信データバッフ
ァ、ＴＢ・・書・送（Ｍデータバッファ。The figure is a block diagram showing one embodiment of the present invention. CNT: Control device, CPU: Processing device, C: Signal frame receiver, TR: Signal frame transmitter, LO to L8: Transmission line, TO to T3・
...terminal, BUF...signal frame reception buffer, EX...comparison i, RB/ψ...reception data buffer, TB...write/send (M data buffer).

Claims (1)

【特許請求の範囲】[Claims] 制御装置と複数の端末を単一の伝送路でループ状に接続
して制御信号の送受を行う方式において、前記制御装置
側に、信号フレームを組み立てて送信する手段と、前記
端末からの信号フレームを受信する手段とを備え、前記
端末側に、信号フレームを受信する手段と、この手段に
よって得られた受信フレームに含まれる端末番号と自端
末番号の一致を検出しフレームのデータ部を格納する手
段と、自端末あての信号フレームに変えて自端末からの
信号フレームを送信する手段と、自端末あて以外の信号
フレームを後位へ転送する手段とを備え、前記制御装置
から端末へ制御信号を送信することにより前記端末から
の制御信号を受信し得るようにしたことを特徴とする制
御信号転送方式。In a method of transmitting and receiving control signals by connecting a control device and a plurality of terminals in a loop through a single transmission path, the control device includes means for assembling and transmitting signal frames, and a means for assembling and transmitting signal frames from the terminals. and means for receiving a signal frame on the terminal side, detecting a match between the terminal number included in the received frame obtained by the means and the own terminal number, and storing the data part of the frame. means for transmitting a signal frame from the own terminal in place of a signal frame addressed to the own terminal, and means for transmitting a signal frame not addressed to the own terminal to a subsequent device, the control device transmitting a control signal from the control device to the terminal. A control signal transfer method characterized in that a control signal can be received from the terminal by transmitting a control signal.
JP26294285A 1985-11-22 1985-11-22 Control signal transfer system Pending JPS62122438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26294285A JPS62122438A (en) 1985-11-22 1985-11-22 Control signal transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26294285A JPS62122438A (en) 1985-11-22 1985-11-22 Control signal transfer system

Publications (1)

Publication Number Publication Date
JPS62122438A true JPS62122438A (en) 1987-06-03

Family

ID=17382706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26294285A Pending JPS62122438A (en) 1985-11-22 1985-11-22 Control signal transfer system

Country Status (1)

Country Link
JP (1) JPS62122438A (en)

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