JPS61177841A - Series transmitting device - Google Patents

Series transmitting device

Info

Publication number
JPS61177841A
JPS61177841A JP60019512A JP1951285A JPS61177841A JP S61177841 A JPS61177841 A JP S61177841A JP 60019512 A JP60019512 A JP 60019512A JP 1951285 A JP1951285 A JP 1951285A JP S61177841 A JPS61177841 A JP S61177841A
Authority
JP
Japan
Prior art keywords
section
slave
master
address
transmission line
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
JP60019512A
Other languages
Japanese (ja)
Inventor
Etsuro Irino
入野　悦郎
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.)
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 JP60019512A priority Critical patent/JPS61177841A/en
Priority to NO860308A priority patent/NO174650C/en
Priority to FI860439A priority patent/FI860439A/en
Priority to DK52286A priority patent/DK52286A/en
Priority to GB08602643A priority patent/GB2170631B/en
Priority to SE8600473A priority patent/SE464554B/en
Publication of JPS61177841A publication Critical patent/JPS61177841A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop

Abstract

PURPOSE:To reduce remarkably a burden on a master section by providing information transmission lines between slave sections and between the head slave section and a master section and sending status change information to the master section through a high-order slave section. CONSTITUTION:For instance, in the case where a master section 1 controls a slave section 2b, the master section 1 sends out combined address of the slave section 2b and controlling data to a series transmission line 3. The slave section receives it when the address coincides with own address, takes in the controlling data. As the address does not coincide, controlling data for other slave section are neglected. When the state of a switch changed in the slave section 2b, the section transmits in series own address and status change information to a high-order slave section 2a through a transmission line 4b. On receiving data from the slave section 2b, the slave section 2a transmits the same data with received data to the master section 1 through a transmission line 4a. Accordingly, the master section need not wait the answer making periodical poling, and the burden is lightened remarkably.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、１対複数の装置間で情報の直列伝送を行な
う直列伝送装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a serial transmission device that serially transmits information between one to a plurality of devices.

〔従来の技術〕[Conventional technology]

第２図は従来の直列伝送装置を示すブロック図で、同図
において、１はマスター部、２ａ、２ｂ。FIG. 2 is a block diagram showing a conventional serial transmission device, in which 1 is a master section, 2a, 2b.

２ｃ、２ｄ・・・はマスター部１により直列伝送で監視
制御されるスレーブ部、２は各スレーブ部２ａ。2c, 2d, . . . are slave portions that are monitored and controlled by the master portion 1 through serial transmission, and 2 are slave portions 2a.

２ｂ、２ｃ、２ｄ・・・から構成されるスレーブ群、３
はスレーブ群２の各スレーブ部とマスター部１間を接続
する直列伝送路である。Slave group 3 consisting of 2b, 2c, 2d...
is a series transmission line connecting each slave section of the slave group 2 and the master section 1.

次に動作について説明する。Next, the operation will be explained.

例えばマスター部１がスレーブ部２ｂを制御する場合、
マスター部１はスレーブ部２ｂのアドレスと制御データ
とを合わせて直列伝送路３に送出する。これをスレーブ
部２ｂは受信し、受信データ内のアドレスと自アドレス
とを照合して一致していれば、制御データを取り込み、
該制御データに応じた処理を行なう。このとき他のスレ
ーブ部では、受信データ内のアドレスと自アドレスとが
一致しないので、受信データは無視される。For example, when the master section 1 controls the slave section 2b,
The master section 1 sends the address of the slave section 2b and control data together to the serial transmission line 3. The slave unit 2b receives this, checks the address in the received data and its own address, and if they match, takes in the control data,
Processing is performed according to the control data. At this time, other slave units ignore the received data because the address in the received data and their own address do not match.

またマスター部１がスレーブ部２ａの状態を監視する場
合、即ちポーリングを行なう場合は、マスター部１はス
レーブ部２ａのアドレスと、制御データとしての“監視
”を意味する信号、即ちポーリング信号とを直列伝送路
３に送出する。これをスレーブ部２ａは受信し、監視デ
ータ、即ち自スレーブ部内のスイッチ等の状態を示す情
報、あるいは異常情報等を直列伝送路３を介してマスタ
ー部１に向けて直列伝送する。Furthermore, when the master section 1 monitors the state of the slave section 2a, that is, when performing polling, the master section 1 receives the address of the slave section 2a and a signal meaning "monitoring" as control data, that is, a polling signal. It is sent to the serial transmission line 3. The slave unit 2a receives this and serially transmits the monitoring data, that is, information indicating the status of switches in the own slave unit, abnormality information, etc., to the master unit 1 via the serial transmission path 3.

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

従来の直列伝送装置は以上のように構成されているので
、マスター部１はスレーブ群２の各スレーブ部に随時送
出する制御データに加えて、常に“監視”信号を一定の
時間ごとに直列伝送しその応答を待つというポーリング
動作を行なう必要がある。また上記ポーリングは、スレ
ーブ群２の各スレーブ部から前回受信した監視データと
今回受信するデータとに変化がなくとも必要で、このよ
うに、従来装置ではこのポーリングのためにマスター部
の負担が大きくなるという欠点があった。Since the conventional serial transmission device is configured as described above, in addition to the control data that is sent to each slave unit of the slave group 2 at any time, the master unit 1 always transmits a “monitoring” signal in series at regular intervals. It is necessary to perform a polling operation to wait for the response. Furthermore, the above polling is necessary even if there is no change between the monitoring data received last time and the data received this time from each slave unit in slave group 2. In this way, in conventional devices, this polling places a large burden on the master unit. There was a drawback.

この発明はこのような従来の問題点を解消するためにな
されたもので、マスター部から定期的にポーリングする
必要がなく、マスター部の負担を大幅に軽減できる直列
伝送装置を提供することを目的とする。This invention was made to solve these conventional problems, and the purpose of this invention is to provide a serial transmission device that does not require periodic polling from the master section and can significantly reduce the burden on the master section. shall be.

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

この発明に係る直列伝送装置は、複数のスレーブ部をマ
スター部が直列伝送路を介して監視制御する直列伝送装
置において、各スレーブ部間及び先頭スレーブ部とマス
ター部間に、あるスレーブ部の状態変化情報をその上位
スレーブ部を介してマスター部に伝送するための情報伝
送ラインを設けたものである。A serial transmission device according to the present invention is a serial transmission device in which a master section monitors and controls a plurality of slave sections via a serial transmission path, and the state of a certain slave section is provided between each slave section and between a first slave section and a master section. An information transmission line is provided for transmitting change information to the master unit via the upper slave unit.

〔作用〕[Effect]

この発明における直列伝送装置では、あるスレーブ部で
状態変化情報が生じたときのみ、該状態変化情報が順次
情報伝送ライン及び上位スレーブ部を介してマスター部
に送られ、マスター部はポーリングする必要がなく、そ
の負担を大幅に軽減できる。In the serial transmission device according to the present invention, only when state change information occurs in a certain slave section, the state change information is sequentially sent to the master section via the information transmission line and the upper slave section, and the master section does not need to poll. This burden can be greatly reduced.

〔実施例〕〔Example〕

以下、この発明の一実施例を図について説明する。第１
図において、第２図と同一符号は同一のものを示し、４
ｂ、４ｃ、４ｄは各スレーブ部２ａ、２ｂ、２ｃ、２ｄ
・・・間に設けられた情報伝送ライン、４ａは先頭スレ
ーブ部２ａとマスター部１間に設けられた情報伝送ライ
ンである。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, the same reference numerals as in Figure 2 indicate the same things, and 4
b, 4c, 4d are each slave section 2a, 2b, 2c, 2d
. . . An information transmission line 4a provided between the first slave section 2a and the master section 1 is an information transmission line provided between the first slave section 2a and the master section 1.

次に動作について説明する。Next, the operation will be explained.

例えば、マスター部１がスレーブ部２ｂを制御する場合
、マスター部１はスレーブ部２ｂのアドレスと制御デー
タとを合わせて直列伝送路３に送出する。これをスレー
ブ部２ｂは受信し、受信データ内のアドレスと自アドレ
スとを照合して一致していれば制御データを取り込み、
該制御データに応じた処理を行なう。他のスレーブ部で
は受信データ内のアドレスと自アドレスとが一致しない
ので受信データは無視される。For example, when the master section 1 controls the slave section 2b, the master section 1 sends the address of the slave section 2b and control data together to the serial transmission line 3. The slave unit 2b receives this, checks the address in the received data and its own address, and if they match, takes in the control data,
Processing is performed according to the control data. In other slave units, the address in the received data and their own address do not match, so the received data is ignored.

またスレーブ部２ｂにおいて、例えばその内部のスイッ
チがＯＮからＯＦＦに変化した等、その２ａに対して情
報伝送ライン４ｂを介して直列伝送する。スレーブ部２
ａはスレーブ部２ｂか、らデータを受信すると、マスタ
ー部１に対して受信したデータと同じデータを情報伝送
ライン４ａを介して送信する。これによりマスター部１
はスレーブ部２ｂを監視し、その状態変化情報に対し必
要な処理を行なうことができる。In addition, in the slave section 2b, for example, when an internal switch changes from ON to OFF, the information is serially transmitted to the slave section 2a via the information transmission line 4b. Slave part 2
When a receives data from the slave section 2b, it transmits the same data as the received data to the master section 1 via the information transmission line 4a. As a result, master section 1
can monitor the slave unit 2b and perform necessary processing on its status change information.

以下、他のスレーブ部においても同様に該スレーブ部は
下位スレーブ部から情報を受信した場合と、自分の状態
が変化した場合のみ、順次その上位スレーブ部又はマス
ター部ｌに対して、該状態が変化したスレーブ部のアド
レスと状態変化情報とを情報伝送ラインを介して直列伝
送する。従って、マスター部１は各スレーブ部に対し、
常にポーリングを行なってその応答を待つ必要がなく、
その負担が大幅に軽減される。Similarly, in other slave units, the slave unit sequentially informs the upper slave unit or master unit l of the status only when it receives information from the lower slave unit or when its own status changes. The changed address of the slave section and state change information are serially transmitted via the information transmission line. Therefore, the master unit 1 has the following information for each slave unit:
There is no need to constantly poll and wait for a response.
That burden will be significantly reduced.

〔発明の効果〕〔Effect of the invention〕

以上のようにこの発明によれば、各スレーブ部からその
上位スレーブ部を介してマスター部へ状態変化情報を送
るために、各スレーブ部間及び先頭スレーブ部とマスタ
ー部間に情報伝送ラインを設けたので、各スレーブ部は
データを伝送する必要があるときのみ送信すれば良く、
従ってマスター部は定期的にポーリングしてその応答を
待つ必要はなく、マスター部の負担を大幅に軽減できる
効果がある。As described above, according to the present invention, an information transmission line is provided between each slave section and between the first slave section and the master section in order to send state change information from each slave section to the master section via its upper slave section. Therefore, each slave unit only needs to transmit data when it is necessary.
Therefore, the master section does not need to periodically poll and wait for a response, which has the effect of significantly reducing the burden on the master section.

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

第１図はこの発明の一実施例による直列伝送装置を示す
ブロック図、第２図は従来の直列伝送装置を示すブロッ
ク図である。 ■・・・マスター部、２・・・スレーブ群、２ａ、２ｂ
。 ２ｃ、　　２ｄ、・・・・・・スレーブ部、３・・・直
列伝送路、４ａ、４ｂ、４ｃ、４ｄ・・・情報伝送ライ
ン。 なお図中同一符号は同−又は相当部分を示す。FIG. 1 is a block diagram showing a serial transmission device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional serial transmission device. ■...Master section, 2...Slave group, 2a, 2b
. 2c, 2d, . . . slave section, 3 . . . serial transmission line, 4a, 4b, 4c, 4d . . . information transmission line. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

【特許請求の範囲】[Claims] （１）複数のスレーブ部をマスター部が直列伝送路を介
して監視制御する直列伝送装置において、あるスレーブ
部の状態変化情報をその上位スレーブ部を介して上記マ
スター部に伝送するための情報伝送ラインが、上記各ス
レーブ部間及び先頭スレーブ部とマスター部間に設けら
れていることを特徴とする直列伝送装置。(1) In a serial transmission device in which a master unit monitors and controls a plurality of slave units via a serial transmission path, information transmission for transmitting state change information of a slave unit to the master unit via its upper slave unit. A serial transmission device characterized in that a line is provided between each of the slave sections and between the first slave section and the master section.
JP60019512A 1985-02-04 1985-02-04 Series transmitting device Pending JPS61177841A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP60019512A JPS61177841A (en) 1985-02-04 1985-02-04 Series transmitting device
NO860308A NO174650C (en) 1985-02-04 1986-01-28 Serial transfer device
FI860439A FI860439A (en) 1985-02-04 1986-01-30 SERIETRANSMISSIONSANORDNING.
DK52286A DK52286A (en) 1985-02-04 1986-02-03 TRANSMISSION UNIT
GB08602643A GB2170631B (en) 1985-02-04 1986-02-04 A serial transmission apparatus
SE8600473A SE464554B (en) 1985-02-04 1986-02-04 DEVICE FOR SERIAL DATA TRANSMISSION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60019512A JPS61177841A (en) 1985-02-04 1985-02-04 Series transmitting device

Publications (1)

Publication Number Publication Date
JPS61177841A true JPS61177841A (en) 1986-08-09

Family

ID=12001414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60019512A Pending JPS61177841A (en) 1985-02-04 1985-02-04 Series transmitting device

Country Status (6)

Country Link
JP (1) JPS61177841A (en)
DK (1) DK52286A (en)
FI (1) FI860439A (en)
GB (1) GB2170631B (en)
NO (1) NO174650C (en)
SE (1) SE464554B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001980A (en) * 1988-12-29 1991-03-26 Komori Printing Machinery Co., Ltd. Delivery apparatus for sheet-fed printing press

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515316C2 (en) * 1994-09-13 2001-07-16 Ericsson Telefon Ab L M Method and apparatus for controlling a data network
DE19624528B4 (en) * 1996-06-20 2009-05-20 Robert Bosch Gmbh Method for controlling information transmission between components and component for carrying out the method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144156B (en) * 1962-01-31 1963-02-21 Lehner Fernsprech Signal Circuit arrangement for the transmission of audio-frequency messages from locally distributed, especially underground reporting points via a two-wire ring line
GB1108462A (en) * 1965-04-15 1968-04-03 Hawker Siddeley Dynamics Ltd Improved system for electronic data transmission, remote control and monitoring
SE329358B (en) * 1970-01-08 1970-10-05 Ericsson Telefon Ab L M
FR2185194A6 (en) * 1972-05-19 1973-12-28 Geophysique Cie Gle
US3845472A (en) * 1972-12-15 1974-10-29 Johnson Service Co Data communication system employing a series loop
GB2030336B (en) * 1978-09-06 1982-11-10 Wolsey Emergency Audio Communi Emergnecy alarm systems
GB2080000B (en) * 1980-07-10 1983-11-30 Shorrock Dev Data transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001980A (en) * 1988-12-29 1991-03-26 Komori Printing Machinery Co., Ltd. Delivery apparatus for sheet-fed printing press

Also Published As

Publication number Publication date
NO174650B (en) 1994-02-28
DK52286A (en) 1986-08-05
NO174650C (en) 1994-06-08
NO860308L (en) 1986-08-05
SE464554B (en) 1991-05-06
GB2170631A (en) 1986-08-06
DK52286D0 (en) 1986-02-03
GB2170631B (en) 1988-04-07
SE8600473L (en) 1986-08-05
SE8600473D0 (en) 1986-02-04
GB8602643D0 (en) 1986-03-12
FI860439A (en) 1986-08-05
FI860439A0 (en) 1986-01-30

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