JPS61156940A - Supervisory control system - Google Patents

Supervisory control system

Info

Publication number
JPS61156940A
JPS61156940A JP59277384A JP27738484A JPS61156940A JP S61156940 A JPS61156940 A JP S61156940A JP 59277384 A JP59277384 A JP 59277384A JP 27738484 A JP27738484 A JP 27738484A JP S61156940 A JPS61156940 A JP S61156940A
Authority
JP
Japan
Prior art keywords
station
terminal
center station
terminal station
program
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
JP59277384A
Other languages
Japanese (ja)
Inventor
Masanori Yasuda
安田　正憲
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 JP59277384A priority Critical patent/JPS61156940A/en
Publication of JPS61156940A publication Critical patent/JPS61156940A/en
Pending legal-status Critical Current

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  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To rationalize the terminal station control by polling the data with a prescribed format through a transmission line from the center station to one of the terminal stations, and modifying the data table part of the terminal station. CONSTITUTION:Each terminal station has a basic-operation part and a data table part, which are composed respectively of a ROM and a RAM. A terminal station 4, in its initial operation, can not perform the operation if its data table part is not yet registered. Therefore, it is not able to return a normal response when accepted a pouring by means of a format from the center station 1. So, it transmits to the center station 1 a program request by means of a program- load-request format. The center station 1 then loads the program by means of the program-load format through the communication line 2 to the terminal station 4. Accordingly, no personnel dispatch to the terminal station is necessary when modifying the supervisory/control item of the terminal station. Additionally, because the control of the terminal data is centralized at the center station, the modifying operation is easy. As a result, the operational cost is reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はモータ、ゲート、電源等の複数の外部機器をセ
ンター局よシの指示によりオン／オフ制御し、あるいは
前述の機器の状態をセンター局に送出する監視制御方式
に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention controls on/off a plurality of external devices such as motors, gates, power supplies, etc. based on instructions from a central station, or controls the status of the aforementioned devices from a central station. This relates to the monitoring and control method for sending data to stations.

〔従来の技術〕[Conventional technology]

監視制御方式は通常、１つのセンター局と複数の端末局
より構成される。端末局は基本動作は共通であるが・周
毎に監視・制御する項目が異なる為、局単位に局特有の
データテーブル部を持ち、それを参照して動作を行って
いる。A supervisory control system usually consists of one center station and multiple terminal stations. The basic operations of terminal stations are common, but since the items to be monitored and controlled differ from cycle to cycle, each station has its own data table section, and operations are performed by referring to it.

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

局毎に異なるデータテープを持つ為、監視・制御項目の
変更が生じた場合、局に人が出かけて、データテーブル
部の変更を行う必要があった。又周毎のデータテーブル
部の管理が大変であった。Since each station had a different data tape, if there was a change in monitoring or control items, it was necessary for someone to go to the station and change the data table section. Also, it was difficult to manage the data table section for each lap.

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

本発明の監視制御方式は、センター局と、前記センター
局に通信回線を介して接続された複数の端末局とを有し
、前記端末局はそれぞれ基本動作部とデータテーブル部
とを持ち、前記センター局からポーリングを受け前記デ
ータテーブル部が未ｆ縁な前記端末局の一つからプログ
ラムロード要求を前記センター局に通知し、このセンタ
ー局からシステムプログラムを前記通信回−を介してそ
の端末局にロードし、前記センター局から前記端末局の
一つに対してＩ！ｔＩ記通信回線を介して所定のフォー
マットでポーリングを行なうことによりその端末局のデ
ータテーブル部を変更するようにしたことｔ−％欧とす
る。The supervisory control system of the present invention includes a center station and a plurality of terminal stations connected to the center station via communication lines, each of the terminal stations having a basic operation section and a data table section, Upon receiving polling from the center station, the data table unit notifies the center station of a program load request from one of the unrelated terminal stations, and the center station transfers the system program to the terminal station via the communication line. I! from the center station to one of the terminal stations. It is assumed that the data table section of the terminal station is changed by polling in a predetermined format via the communication line.

〔実施例〕〔Example〕

次ｌこ本発明について図Ｉｆｉを参照して詳細に説明す
る。Next, the present invention will be explained in detail with reference to Figure Ifi.

第１図は本発明の一実ＩＩＩＡ列を示すブロック図であ
る。センター局１と端末局３，４，５は返信回線２によ
シマルチドロップ接続さ才している。又端末局７はセン
ター局１と）１４に信回−６により接続されている。FIG. 1 is a block diagram showing one embodiment of the present invention, Series IIIA. The center station 1 and the terminal stations 3, 4, and 5 are connected by a multi-drop connection via the return line 2. Further, the terminal station 7 is connected to the center station 1 and ) 14 by a line 6.

各端末局は基本動作部とデータテーブル５（ｉ−持ち、
基本動作部はＲＯＭ（読出専用メモリ）、データテーブ
ル部はＲＡＭ（読出／曹込メモリ）よシ構成される。例
えば、端末局４はイニシャル動作時、データテーブル部
は未登録とすると・本来の動作を行うことはできないの
で、センター局１から第２図（ａ）のｌフォーマットに
よりポーリングを受けた場合、正常な応答を返すことが
できず、同図（ｄ）のプログラムロード要求フォーマッ
トによるプログラム要求をセンター局１に通知する。セ
ンター局１では端末局４に対し同図（ｂ）のプログラム
ロードフォーマットによりプログラム（システムデータ
）を通信回線上を介してロードする。このことにより、
次回のポーリング時に端末局４は同図（ｅ）の端末応答
フォーマットによる正常な応答をセンター局１に返す様
になる。センター局１から端末局４のデータテーブル部
を変更する際は、センター局１から端末局４に対し同図
（ｂ）のフォーマットでポーリングを行い、端末局４の
データテーブル部を変更する。他の端末局についても同
様である。Each terminal station has a basic operation unit and a data table 5 (i-
The basic operating section is composed of ROM (read-only memory), and the data table section is composed of RAM (read/load memory). For example, when the terminal station 4 initially operates, if the data table section is unregistered, it will not be able to perform its normal operation. It is unable to return a proper response, and notifies the center station 1 of a program request in the program load request format shown in FIG. 3(d). The center station 1 loads a program (system data) to the terminal station 4 via the communication line according to the program load format shown in FIG. 4(b). Due to this,
At the next polling, the terminal station 4 returns a normal response to the center station 1 in the terminal response format shown in FIG. When changing the data table section of the terminal station 4 from the center station 1, polling is performed from the center station 1 to the terminal station 4 in the format shown in FIG. The same applies to other terminal stations.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、端末局の監視・制御項目変更の際、端
末局に人が行く必要が無く、又、各端末局のデータをセ
ンター局にて一元管理する為、データの変更作業が容易
であり、運用費用が安価となる。父、端末局は共通の基
本動作部を持てばよいので、端末局の価格を下げる効果
をも生じることになる。According to the present invention, when changing the monitoring and control items of a terminal station, there is no need for a person to go to the terminal station, and since the data of each terminal station is centrally managed at the central station, data modification work is easy. Therefore, operating costs are low. Furthermore, since the terminal stations only need to have a common basic operation unit, this will also have the effect of lowering the price of the terminal stations.

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

第１図は本発明の一実施例を示すブロック図、第２図は
第１図の動作を示すデータフォーマットである。 ｌ・・・・・・センター局、２・・・・・・通信回線、
３．４゜５．７・・・・・・端末局、６・・・・・・通
信回線。 ・′−−−＼ ｌへ１ ｔｃＬ）：；ｌ’−：、、’）；、　　　ＥＥＥＥＥＩ
′ｖ−２函FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a data format showing the operation of FIG. 1. l...Center station, 2...Communication line,
3.4゜5.7...terminal station, 6...communication line.・'---\1 to l tcL):;l'-:,,');, EEEEEI
'v-2 boxes

Claims (1)

【特許請求の範囲】[Claims] センター局と、前記センター局に通信回線を介して接続
された複数の端末局とを有し、前記端末局はそれぞれ基
本動作部とデータテーブル部とを持ち、前記センター局
からポーリングを受け前記データテーブル部が未登録な
前記端末局の一つからプログラムロード要求を前記セン
ター局に通知し、このセンター局からシステムプログラ
ムを前記通信回線を介してその端末局にロードし、前記
センター局から前記端末局の一つに対して前記通信回線
を介して所定のフォーマットでポーリングを行なうこと
によりその端末局のデータテーブル部を変更するように
したことを特徴とする監視制御方式。It has a center station and a plurality of terminal stations connected to the center station via communication lines, and each of the terminal stations has a basic operation section and a data table section, and receives polling from the center station and receives the data. The table unit notifies the center station of a program load request from one of the unregistered terminal stations, loads the system program from the center station to the terminal station via the communication line, and sends the system program from the center station to the terminal station. A supervisory control system characterized in that a data table section of a terminal station is changed by polling one of the stations in a predetermined format via the communication line.
JP59277384A 1984-12-27 1984-12-27 Supervisory control system Pending JPS61156940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59277384A JPS61156940A (en) 1984-12-27 1984-12-27 Supervisory control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59277384A JPS61156940A (en) 1984-12-27 1984-12-27 Supervisory control system

Publications (1)

Publication Number Publication Date
JPS61156940A true JPS61156940A (en) 1986-07-16

Family

ID=17582774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59277384A Pending JPS61156940A (en) 1984-12-27 1984-12-27 Supervisory control system

Country Status (1)

Country Link
JP (1) JPS61156940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149992A (en) * 1986-12-12 1988-06-22 Nec Corp Polling type supervisory and control system
JPH0515027U (en) * 1991-08-02 1993-02-26 オリンパス光学工業株式会社 camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149992A (en) * 1986-12-12 1988-06-22 Nec Corp Polling type supervisory and control system
JPH0515027U (en) * 1991-08-02 1993-02-26 オリンパス光学工業株式会社 camera

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