JPH04293103A - Control system - Google Patents

Control system

Info

Publication number
JPH04293103A
JPH04293103A JP5753491A JP5753491A JPH04293103A JP H04293103 A JPH04293103 A JP H04293103A JP 5753491 A JP5753491 A JP 5753491A JP 5753491 A JP5753491 A JP 5753491A JP H04293103 A JPH04293103 A JP H04293103A
Authority
JP
Japan
Prior art keywords
controlled
devices
mode
operation mode
processing unit
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
JP5753491A
Other languages
Japanese (ja)
Inventor
Satoshi Kimura
聡 木村
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 JP5753491A priority Critical patent/JPH04293103A/en
Publication of JPH04293103A publication Critical patent/JPH04293103A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control By Computers (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To constitute the system so that all devices thereof can migrate simultaneously the operation mode. CONSTITUTION:Plural devices 3-8 to be controlled are placed under the control of a central processor 1 through a local area network 2 and form one system as a whole. When this system changes the operation mode, a mode migrating preparation instruction is transmitted to the devices 3-8 to be controlled from the central processor 1, and in response thereto, each device to be controlled executes a preparation processing and outputs a response signal after it is completed. The central processor 1 generates a mode migration command, when response signals of all devices to be controlled are inputted, or after the time set in advance elapses.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明は制御システムに関し、特
にシステムの運用モード制御を必要とする中央処理装置
と、この中央処理装置によって制御される複数の被制御
装置とからなる制御システムに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system, and more particularly to a control system comprising a central processing unit that requires system operation mode control and a plurality of controlled devices controlled by the central processing unit.

【0002】0002

【従来の技術】従来、この種の制御システムにあってシ
ステムの運用モードを制御する場合には、中央処理装置
からのシステムの運用モード移行に指令され、被制御装
置がそれぞれ個個にシステムの運用モード移行処理を行
なう非同期性の運用モード移行を行なうという方法がと
られていた。
[Background Art] Conventionally, when controlling the system operation mode in this type of control system, a command is issued from the central processing unit to shift the system operation mode, and each controlled device individually controls the system operation mode. A method has been used in which an asynchronous operation mode transition process is performed.

【0003】0003

【発明が解決しようとする課題】上述した従来の制御シ
ステムは、システムの運用モードを制御するにあたり、
中央処理装置からのシステムのモード移行指令に対し、
被制御装置が個個にシステムの運用モード移行処理を行
い、非同期に移行するという方法がとられているため、
各装置の運用モード移行に関する処理時間の相異により
システムの運用モード移行がシステム全体として時間的
に整合が確保できないという欠点がある。
[Problems to be Solved by the Invention] In the conventional control system described above, in controlling the operation mode of the system,
In response to a system mode transition command from the central processing unit,
Since the method is used in which each controlled device individually performs system operation mode transition processing and transitions asynchronously,
There is a drawback that the system cannot ensure temporal consistency in the system's transition to the operational mode as a whole due to differences in processing times for transitioning to the operational mode of each device.

【0004】本発明の目的は、このような欠点を除去し
、システムのすべての装置が一斉にシステムの運用モー
ドを移行できる制御システムを提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a control system that eliminates such drawbacks and allows all devices in the system to simultaneously shift the system operation mode.

【0005】[0005]

【課題を解決するための手段】本発明の制御システムは
、システムを制御する中央処理装置とこの中央処理装置
によって制御される複数の被制御装置からなり、前記中
央処理装置によりシステムの運用モードを制御する場合
に前記被制御装置と同期をとってシステムの全ての装置
が一斉にシステムの運用モード移行を行う構成を有する
[Means for Solving the Problems] The control system of the present invention includes a central processing unit that controls the system and a plurality of controlled devices controlled by the central processing unit, and the central processing unit controls the operation mode of the system. In the case of controlling, all devices of the system are configured to synchronize with the controlled device and shift the system operation mode at the same time.

【0006】[0006]

【実施例】次に本発明について図面を参照して説明する
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

【0007】図1は、本発明による制御システムの一実
施例を示すブロック図である。図1に示す実施例は、シ
ステムを制御する中央処理装置1と、ローカルエリアネ
ットワーク2を介してデータ通信を行なう被制御装置3
〜8を備えて構成される。図2は図1の実施例における
システムの運用モード移行の説明図である。以下、図2
を参照しつつ本実施例の動作について説明する。
FIG. 1 is a block diagram showing one embodiment of a control system according to the present invention. The embodiment shown in FIG. 1 includes a central processing unit 1 that controls the system, and a controlled device 3 that performs data communication via a local area network 2.
~8. FIG. 2 is an explanatory diagram of the system operation mode transition in the embodiment of FIG. Below, Figure 2
The operation of this embodiment will be explained with reference to .

【0008】Aモードの状態からBモードへ移行する手
順のシーケンスを例として示す。
[0008] A sequence of procedures for transitioning from A mode to B mode will be shown as an example.

【0009】中央処理装置1は、Bモードに移行するの
にあたり、各被制御装置3〜8に対し、Bモード移行準
備指令101を送信する。
When the central processing unit 1 shifts to the B mode, it transmits a B mode shift preparation command 101 to each of the controlled devices 3 to 8.

【0010】被制御装置3〜8はBモード移行準備指令
101を受信後直ちにBモード移行処理102を行い、
処理完了後中央処理装置1に対しBモード移行準備応答
103を送信する。
Immediately after receiving the B-mode transition preparation command 101, the controlled devices 3 to 8 perform a B-mode transition process 102.
After the processing is completed, a B mode shift preparation response 103 is transmitted to the central processing unit 1.

【0011】中央処理装置1は、被制御装置3〜8のす
べてからBモード移行準備応答103を受信した後、も
しくは、Bモード移行準備指令101を送信後タイムア
ウト監視処理を行い、一定時間経過後に被制御装置3〜
8へBモード移行指令104を一斉同報により送信する
After receiving the B-mode transition preparation response 103 from all of the controlled devices 3 to 8, or after transmitting the B-mode transition preparation command 101, the central processing unit 1 performs a timeout monitoring process, and after a certain period of time has elapsed, Controlled device 3~
8, the B mode transition command 104 is transmitted by simultaneous broadcast.

【0012】中央処理装置1および被制御装置3〜8は
Bモード移行指令104の送受信をもってBモードへの
移行を完了する。
The central processing unit 1 and the controlled devices 3 to 8 complete the transition to the B mode by transmitting and receiving the B mode transition command 104.

【0013】こうして、運用モードの移行が一斉に行な
われる。
[0013] In this way, the operation mode is shifted all at once.

【0014】[0014]

【発明の効果】以上説明したように本発明は、中央処理
装置と複数の被制御装置を含む制御システムにおいて、
システムのすべての装置が一斉に運用モードを移行する
ことが可能になるという効果を有する。
As explained above, the present invention provides a control system including a central processing unit and a plurality of controlled devices.
This has the effect that all the devices in the system can shift their operation modes at the same time.

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

【図1】本発明の制御システムの一実施例の構成を示す
ブロック図である。
FIG. 1 is a block diagram showing the configuration of an embodiment of a control system of the present invention.

【図2】図1の実施例におけるシステムの運用モード移
行の一例を示す説明図である。
FIG. 2 is an explanatory diagram illustrating an example of transition to an operation mode of the system in the embodiment of FIG. 1;

【符号の説明】[Explanation of symbols]

1    中央処理装置 2    ローカルエリアネットワーウ3〜8    
被制御装置
1 Central processing unit 2 Local area network 3 to 8
controlled device

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  システムを制御する中央処理装置とこ
の中央処理装置によって制御される複数の被制御装置か
らなり、前記中央処理装置によりシステムの運用モード
を制御する場合に前記被制御装置と同期をとってシステ
ムの全ての装置が一斉にシステムの運用モード移行を行
うことを特徴とする制御システム。
Claim 1: A system comprising a central processing unit that controls a system and a plurality of controlled devices controlled by the central processing unit, which is synchronized with the controlled devices when the central processing unit controls the operation mode of the system. A control system characterized in that all the devices in the system simultaneously shift to a system operation mode.
JP5753491A 1991-03-22 1991-03-22 Control system Pending JPH04293103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5753491A JPH04293103A (en) 1991-03-22 1991-03-22 Control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5753491A JPH04293103A (en) 1991-03-22 1991-03-22 Control system

Publications (1)

Publication Number Publication Date
JPH04293103A true JPH04293103A (en) 1992-10-16

Family

ID=13058422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5753491A Pending JPH04293103A (en) 1991-03-22 1991-03-22 Control system

Country Status (1)

Country Link
JP (1) JPH04293103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1027001A (en) * 1996-07-09 1998-01-27 Kubota Corp Inspection system for working machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1027001A (en) * 1996-07-09 1998-01-27 Kubota Corp Inspection system for working machine

Similar Documents

Publication Publication Date Title
JPH04293103A (en) Control system
JPS61170150A (en) Slave station controller of reference station in time division multiple address system
JPS62219839A (en) Starting control system
JPS6273352A (en) Composite bus trace device
JPH0369245A (en) Reception data monitor system for information processor
JPH02171096A (en) Time synchronizing system for multi-processor exchange system
JP2752769B2 (en) CATV transmission line level measurement system
JPH1055374A (en) Data repeating device
JPS61144150A (en) Monitoring control system
JPH04898A (en) Communication equipment
JPH0226440B2 (en)
JP2776606B2 (en) Frame synchronizer
JPS61169904A (en) Plant supervision and control device
JPS59139468A (en) Master/slave switching device in dual type arithmetic processing device
JPH01315864A (en) Data control circuit for information processing system
JPH05322287A (en) Communication device for air conditioning system
JPH0324838A (en) Remote supervisory and controlling equipment
JPS63186357A (en) Circuit for setting dma transfer start command
JPH0666805B2 (en) Communication control method in loop communication system
JPH06103904B2 (en) Communication method
JPS6374345A (en) Analog signal transmission equipment
JPH03265398A (en) Remote control system
JPS63238732A (en) Synchronizing signal transmission system
JPH0797771B2 (en) Clock control system
JPS63161758A (en) Data communication line supervisory system