JP2598661B2 - controller - Google Patents
controllerInfo
- Publication number
- JP2598661B2 JP2598661B2 JP4313188A JP4313188A JP2598661B2 JP 2598661 B2 JP2598661 B2 JP 2598661B2 JP 4313188 A JP4313188 A JP 4313188A JP 4313188 A JP4313188 A JP 4313188A JP 2598661 B2 JP2598661 B2 JP 2598661B2
- Authority
- JP
- Japan
- Prior art keywords
- memory
- controller
- transmission
- control
- electric control
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control By Computers (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電気・計装制御を行うコントローラに係
り、特に上記計算機の機器発停操作時の応答性を高速化
するに好適なコントローラに関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controller for performing electrical / instrumentation control, and more particularly to a controller suitable for speeding up the responsiveness of the above-mentioned computer at the time of device start / stop operation. .
従来、この種のコントローラは電気制御（１人制御）
および、計装制御（DDC）を行って、これらの情報を上
位計算機へ伝送し、上位計算機は伝送された情報をもと
に、CRT画面に表示を行っていた。すなわち、上位計算
機よりCRTを使用して機器発停を行い、下位コントロー
ラでその情報を受け取り、プラントの機器を運転し、運
転したという情報をコントローラを経由し、伝送路を通
して上位計算機のCRT画面に運転表示をしていた。この
場合、応答性（上位計算機のCRTより機器発停し、プラ
ントの運転表示がCRTに表示されるまでの時間）が遅く
問題となっていた。Conventionally, this type of controller is electrically controlled (one-person control)
In addition, by performing instrumentation control (DDC), the information is transmitted to the host computer, and the host computer displays the information on the CRT screen based on the transmitted information. In other words, the upper computer uses the CRT to start and stop the equipment, the lower controller receives the information, the plant equipment is operated, and the information that the operation has been performed is sent to the CRT screen of the upper computer via the controller via the transmission path. Driving display. In this case, the responsiveness (the time from when the device is started and stopped by the CRT of the host computer until the operation display of the plant is displayed on the CRT) is slow, which is a problem.
また、特開昭55−69804号公報にプロセス制御システ
ムがあるが、公知例では中央マンマシンインタフェース
装置より下位端末コントローラのモード切換（自動モー
ドより手段モードに切替）制御を行っているものであ
る。Japanese Patent Application Laid-Open No. 55-69804 discloses a process control system. In a known example, a central man-machine interface device controls the mode switching of a lower terminal controller (switches from an automatic mode to a means mode). .
上記従来技術は、コントローラ内の情報を全て上位計
算機へ送っているため、上位計算機の負荷が重くなり、
CRTの画面表示および機器発停時の応答性が遅くなると
いう問題があった。ちなみに電気制御において、機器の
操作を操作者が行って、その結果がすぐ（遅くても１秒
以内）にCRTに表示されないとイライラするといわれ
る。なお、特開昭57−199357号公報に記載されているよ
うに、CPUと上位計算機とを一般伝送路と緊急情報伝送
路の二系統で接続する方法も考えられるが、CPUが一般
情報と緊急情報の処理を共に実行するのでは、CPUの負
荷が高くなる。In the above prior art, since all information in the controller is sent to the host computer, the load on the host computer increases,
There was a problem that the screen display of the CRT and the responsiveness at the time of starting and stopping the device became slow. By the way, in the electric control, it is said that the operator is irritated if the operator operates the device and the result is not immediately displayed (within one second at the latest) on the CRT. As described in Japanese Patent Application Laid-Open No. 57-199357, a method of connecting a CPU and a host computer with two systems, a general transmission line and an emergency information transmission line, is also conceivable. Executing information processing together increases the load on the CPU.
本発明の目的は、上記計算機と制御対象に関する電気
制御と計装制御とを独立して実行することができるコン
トローラを提供することにある。An object of the present invention is to provide a controller capable of independently executing the electrical control and the instrumentation control for the computer and the control target.
前記目的を達成するために、本発明は、上位計算機の
第１電気制御手段に接続された第１伝送手段と、前記上
位計算機の第１計装制御手段に接続された第２伝送手段
と、前記第１伝送手段に接続されて前記上位計算機と情
報の授受を行うと共に制御対象に対して電気制御を行う
第２電気制御手段と、前記第２伝送手段に接続されて前
記上位計算機と情報の授受を行うと共に制御対象に対し
て計装制御を行う第２計装手段とを備えているコントロ
ーラを構成したものである。In order to achieve the above object, the present invention provides a first transmission unit connected to a first electric control unit of a higher-level computer, a second transmission unit connected to a first instrumentation control unit of the higher-level computer, A second electric control means connected to the first transmission means for transmitting and receiving information to and from the higher-level computer and performing electric control on a control target; and a second electric control means connected to the second transmission means for transmitting information to and from the higher-level computer. The controller includes a second instrumentation unit that performs instrumentation control on the object to be controlled while exchanging information.
上記した手段によれば、上記計算機とコントローラと
を第１伝送手段と第２伝送手段の２系統の伝送手段で接
続し、コントローラの機能を、上記計算機と制御対象に
関する電気制御を実行する第２電気制御手段と、上位計
算機と制御対象に関する計装制御を実行する第２計装制
御手段との２系統に分けたので、電気制御の応答性を高
めることができる。さらに、第１伝送手段は、前記第１
電気制御手段と前記第２電気制御手段とを直接接続する
伝送路で構成されているので、電気制御の応答性を一層
高めることができる。According to the above-described means, the computer and the controller are connected by the two transmission means of the first transmission means and the second transmission means, and the function of the controller is changed to the second one for executing the electric control relating to the computer and the control object. Since the system is divided into two systems, namely, an electric control unit and a second instrumentation control unit that performs instrumentation control on a host computer and a control target, the responsiveness of the electric control can be improved. Further, the first transmitting means includes the first transmitting means.
Since the transmission path is configured to directly connect the electric control means and the second electric control means, the responsiveness of the electric control can be further enhanced.
以下、本発明の第１実施例を第１図により説明する。 Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
第１図はコントローラのシステム構成図である。中央
計算機１とコントローラ12は高速伝送路８および低速伝
送路７でそれぞれ接続している。高速伝送路８は中央計
算機１側での機器操作の結果が１秒程度以内に表示部２
に表示されるよう中央計算機１とコントローラ12間を直
接結びつけた伝送路であり、低速伝送路７はプラントの
数多くの監視点データの定期的なサンプリング値からコ
ントローラ12が自動制御し、その結果を５秒程度以内に
中央計算機１へ伝送するのに用いる伝送路である。FIG. 1 is a system configuration diagram of the controller. The central computer 1 and the controller 12 are connected by a high-speed transmission line 8 and a low-speed transmission line 7, respectively. The high-speed transmission line 8 displays the display unit 2 within about one second as a result of device operation on the central computer 1 side.
Is a transmission line directly connecting the central computer 1 and the controller 12 as shown in the figure. The low-speed transmission line 7 is automatically controlled by the controller 12 based on periodic sampling values of a large number of monitoring point data of the plant. This transmission path is used to transmit the data to the central computer 1 within about 5 seconds.
コントローラ12は電気制御用コントローラ９と計装制
御用コントローラ13の２つの機能に分かれており、前者
は、電気制御メモリ11と電気制御伝送メモリ10とで構成
され、後者は計装制御メモリ15と計装制御伝送メモリ14
とで構成されている。そして電気制御メモリ11は１人制
御（ラダーシーケンス）を受けもち、計装制御メモリ15
はDDC制御を受けもつ。また、電気制御伝送メモリ10は
高速伝送用として、計装制御伝送メモリ14は低速電送用
として、それぞれ機能分担している。The controller 12 is divided into two functions of an electric control controller 9 and an instrumentation control controller 13. The former includes an electric control memory 11 and an electric control transmission memory 10, and the latter has an instrumentation control memory 15 and Instrumentation control transmission memory 14
It is composed of The electric control memory 11 receives one-person control (ladder sequence), and the instrumentation control memory 15
Is responsible for DDC control. The electric control transmission memory 10 is for high-speed transmission, and the instrumentation control transmission memory 14 is for low-speed transmission.
前述した２つの伝送路のうち、高速伝送路８はコント
ローラ12内の電気制御用コントローラ９と中央計算機１
内の機器発停操作用伝送メモリ５とを接続し、低速伝送
路７はコントローラ12内の計装制御用コントローラ13と
中央計算機１内の監視機能用伝送メモリ６とを接続した
ものである。また、中央計算機１はメモリ４をロードシ
ヤ方式とし、メモリ内を機器発停操作用メモリ19と監視
機能用メモリ20に分け、機器発停操作用メモリ19は機器
発停操作用伝送メモリ５に接続し、監視機能用メモリ20
は監視機能用伝送メモリ６に接続してロードを分担す
る。例えば中央計算機１側で表示部２を見ながら操作部
３によりポンプ起動指令（図示せず）をすると、メモリ
４内の機器発停操作用メモリ19で処理し、機器発停操作
用伝送メモリ５から高速伝送路８を経由し、コントロー
ラ12内の電気制御伝送メモリ10に伝送され、つづく電気
制御メモリ11にて１人制御（図示せず）を行い、プラン
ト設備16のポンプ17を運転する。このポンプ17の運転指
令（図示せず）をコントローラ12内の電気制御メモリ11
にて確認し、起動指令時の伝送方向とは逆に、電気制御
伝送メモリ10を通り高速伝送路８を経由し、中央計算機
１内の機器発停操作用伝送メモリ５に伝送され機器発停
操作用メモリ19で処理し、表示部２でポンプ（図示せ
ず）の運転表示をする。Of the two transmission lines described above, the high-speed transmission line 8 is the electric control controller 9 in the controller 12 and the central computer 1.
The low-speed transmission line 7 connects the controller 13 for instrumentation control in the controller 12 and the transmission memory 6 for monitoring function in the central computer 1. The central computer 1 uses the load shear system for the memory 4 and divides the memory into a device start / stop operation memory 19 and a monitoring function memory 20, and the device start / stop operation memory 19 is connected to the device start / stop operation transmission memory 5. Monitoring function memory 20
Is connected to the monitoring function transmission memory 6 to share the load. For example, when a pump start command (not shown) is operated by the operation unit 3 while viewing the display unit 2 on the central computer 1, the processing is performed by the device start / stop operation memory 19 in the memory 4 and the device start / stop operation transmission memory 5 Is transmitted to the electric control transmission memory 10 in the controller 12 via the high-speed transmission line 8, and then the electric control memory 11 performs one-person control (not shown) to operate the pump 17 of the plant equipment 16. The operation command (not shown) of the pump 17 is transmitted to the electric control memory 11 in the controller 12.
In the opposite direction to the transmission direction at the time of the start command, the data is transmitted to the device start / stop operation transmission memory 5 in the central computer 1 via the electric control transmission memory 10 and the high-speed transmission line 8 to start / stop the device. The processing is performed by the operation memory 19, and the operation of the pump (not shown) is displayed on the display unit 2.
一方、プラント設備16の検出端18信号はコントローラ
12内の計装制御メモリ15でDDC制御を行い、計装制御伝
送メモリ14を通り低速伝送路７を経由して中央計算機１
内の監視機能用伝送メモリ６に伝送され監視機能用メモ
リ20で処理し、表示部２で検出端18のアナログ量（図示
せず）の表示をする。On the other hand, the detector 18 signal of the plant equipment 16 is
The DDC control is performed by the instrumentation control memory 15 in the central processing unit 12, and the central computer 1 passes through the instrumentation control transmission memory 14 via the low-speed transmission line 7.
The signal is transmitted to the monitoring function transmission memory 6 and processed by the monitoring function memory 20, and the display unit 2 displays the analog amount (not shown) of the detection end 18.
本実施例はコントローラ12内の伝送メモリを電気制御
伝送メモリと計装制御伝送メモリとに分け、中央計算機
１内の伝送メモリを機器発停操作用メモリと監視機能用
メモリとに分けてロードシヤ方式に構成したものであ
る。In this embodiment, the transmission memory in the controller 12 is divided into an electric control transmission memory and an instrumentation control transmission memory, and the transmission memory in the central computer 1 is divided into a device start / stop operation memory and a monitoring function memory, and a load shear system. It is what was constituted.
本発明によれば、コントローラと上位計算機の伝送路
を電気制御を行う伝送路と計装制御を行う伝送路とに分
け、おのおの機能分担させたので、上位計算機の負荷を
低減させることができ、電気制御の応答性がよくなると
いう効果がある。さらに、コントローラと上位計算機の
それぞれの電気制御手段を直接結びつけたので電気制御
の応答性が一層早くなる。According to the present invention, the transmission path of the controller and the host computer is divided into a transmission path for performing electrical control and a transmission path for performing instrumentation control, and each function is shared, so that the load on the host computer can be reduced. There is an effect that the response of the electric control is improved. Furthermore, since the controller and the respective electrical control means of the host computer are directly connected, the responsiveness of the electrical control is further increased.
第１図は、本発明の一実施例を示すシステム構成図であ
る。 １……中央計算機、４……メモリ、５……機器発停操作
用伝送メモリ、６……監視機能用伝送メモリ、７……低
速伝送路、８……高速伝送路、９……電気制御用コント
ローラ、10……電気制御伝送メモリ、11……電気制御メ
モリ、12……コントローラ、13……計装制御用コントロ
ーラ、14……計装制御伝送メモリ、15……計装制御メモ
リ、19……機器発停操作用メモリ、20……監視機能用メ
モリ。FIG. 1 is a system configuration diagram showing one embodiment of the present invention. 1 central computer, 4 memory, 5 transmission memory for starting and stopping equipment, 6 transmission memory for monitoring function, 7 low-speed transmission line, 8 high-speed transmission line, 9 electric control Controller, 10 ... Electrical control transmission memory, 11 ... Electrical control memory, 12 ... Controller, 13 ... Instrumentation control controller, 14 ... Instrumentation control transmission memory, 15 ... Instrumentation control memory, 19 …… Device start / stop operation memory, 20 …… Monitoring function memory.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮村 寿人 茨城県日立市大みか町５丁目２番１号 株式会社日立製作所大みか工場内 (56)参考文献 特開 昭58−16337（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hisato Miyamura 5-2-1 Omikacho, Hitachi City, Ibaraki Prefecture Inside the Hitachi, Ltd. Omika Plant (56) References JP-A-58-16337 (JP, A)
Claims (2)
た第１伝送手段と、前記上位計算機の第１計装制御手段
に接続された第２伝送手段と、前記第１伝送手段に接続
されて前記上位計算機と情報の授受を行うと共に制御対
象に対して電気制御を行う第２電気制御手段と、前記第
２伝送手段に接続されて前記上位計算機と情報の授受を
行うと共に制御対象に対して計装制御を行う第２計装手
段とを備えているコントローラ。A first transmission means connected to a first electrical control means of a host computer; a second transmission means connected to a first instrumentation control means of the host computer; and a connection to the first transmission means. A second electric control means for exchanging information with the host computer and electrically controlling the control object; and a second electric control means connected to the second transmission means for exchanging information with the host computer and controlling the control object. A second instrumentation means for performing instrumentation control on the controller.
段と前記第２電気制御手段とを直接接続する伝送路で構
成されている請求項１記載のコントローラ。2. The controller according to claim 1, wherein said first transmission means comprises a transmission path directly connecting said first electric control means and said second electric control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4313188A JP2598661B2 (en) | 1988-02-25 | 1988-02-25 | controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4313188A JP2598661B2 (en) | 1988-02-25 | 1988-02-25 | controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01217504A JPH01217504A (en) | 1989-08-31 |
| JP2598661B2 true JP2598661B2 (en) | 1997-04-09 |
Family
ID=12655293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4313188A Expired - Fee Related JP2598661B2 (en) | 1988-02-25 | 1988-02-25 | controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2598661B2 (en) |
-
1988
- 1988-02-25 JP JP4313188A patent/JP2598661B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01217504A (en) | 1989-08-31 |
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