JPH0433101A - Controller for digital controller - Google Patents

Controller for digital controller

Info

Publication number
JPH0433101A
JPH0433101A JP2140539A JP14053990A JPH0433101A JP H0433101 A JPH0433101 A JP H0433101A JP 2140539 A JP2140539 A JP 2140539A JP 14053990 A JP14053990 A JP 14053990A JP H0433101 A JPH0433101 A JP H0433101A
Authority
JP
Japan
Prior art keywords
substrate
output
signal
multiplex transmission
analog output
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
JP2140539A
Other languages
Japanese (ja)
Inventor
Masahiko Hirayama
平山　政彦
Masatoshi Hanabusa
萼　昌利
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.)
Toshiba Engineering Corp
Toshiba Corp
Original Assignee
Toshiba Engineering Corp
Toshiba 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 Toshiba Engineering Corp, Toshiba Corp filed Critical Toshiba Engineering Corp
Priority to JP2140539A priority Critical patent/JPH0433101A/en
Publication of JPH0433101A publication Critical patent/JPH0433101A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Feedback Control In General (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE:To control a digital controller by inputting the output of a switching output substrate to the manual setting unit by means of an input substrate, comparing it with the set point of a programmable controller at the time of exchanging an analog output substrate, by switching a system to the output of a manual setting unit when abnormality is detected. CONSTITUTION:A process signal 20 detected by the detector 13 of a site machine 10 is inputted to the computing element 22 of the programmable controller 6 through the analog input substrate 21 and the site light multiplex transmission 9 unit of a light multiplex transmission site panel 8 and the transmission unit 7 of a control panel 2. The computing element 22 outputs a valve opening command signal 23. The signal 23 is guided to a control valve 12 through the analog output substrate 24 and a switching circuit 25. At the time of exchanging the substrate 24, a change-over switch 26 adjusts the opening of the control valve 12 by the operation of the manual setting unit 27. A comparator 28 detects a deviation between the output signal of the substrate 24 and the valve opening command signal 23 of the comput ing element 22 and detects the fault of the analog output substrate 24. A fault signal 29 is guided to a digital output substrate 30, a switching signal is transmitted to the switching circuit 25. Then, the output of the fault substrate 24 is switched to the manual setting unit 27-side and the opening of the control valve 12 is adjusted and maintained to a desire value.

Description

【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、プログラマブル・コントローラと光多重伝送
装置を用いた発電プラントの制御システムに係り、特に
プラントの重要な調節計制御を行う現場に設置された光
多重伝送現場盤内アナログ出力基板の交換および異常時
に手動設定回路にバンプレスに切替えることを可能とし
、制御を停止することなく保守できるディジタル調節計
制御装置に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a control system for a power generation plant using a programmable controller and an optical multiplex transmission device, and in particular, the present invention relates to a control system for a power generation plant using a programmable controller and an optical multiplex transmission device. This invention relates to a digital controller control device that enables replacement of an analog output board in an optical multiplex transmission field panel installed at a site where transmission is performed, bumpless switching to a manual setting circuit in the event of an abnormality, and maintenance without stopping control.

（従来の技術） 近年、原子力発電所の制御システムは、プログラマブル
・コントローラを用いることにより、制御盤を小形化し
、中央制御室と現場間の信号取合いに光多重伝送を用い
ることにより、ケーブル物量の削減を図ったディジタル
制御システムが導入されている。(Prior technology) In recent years, control systems for nuclear power plants have reduced the amount of cables by using programmable controllers to downsize the control panels and by using optical multiplex transmission for signal exchange between the central control room and the site. A digital control system has been introduced to reduce waste.

第２図は、このような制御システムの構成例を示すもの
で、中央操作室には操作盤１と制御盤２が配置され、操
作盤１には操作機器３などのマンマシン・インターフェ
イスと、このインターフェイスとの信号を入出力する入
出力装置４と、中揉光多重伝送装置５が収納されている
。また、制御盤２には、制御演算を行うプログラマブル
費コントローラ６と、中揉光多重伝送装置７が収納され
ている。FIG. 2 shows an example of the configuration of such a control system, in which an operation panel 1 and a control panel 2 are arranged in a central operation room, and the operation panel 1 has man-machine interfaces such as operation devices 3, An input/output device 4 for inputting and outputting signals to and from this interface, and an optical multiplex transmission device 5 are housed. Further, the control panel 2 houses a programmable controller 6 that performs control calculations and an optical multiplex transmission device 7.

現場側に設置された光多重伝送現場盤８には、中央操作
室との信号伝送を行う現場光多重伝送装置９と、現場の
制御対象機器１０への動作出力およびプロセス信号の入
力を行う入出力装置１１が収納されている。制御対象機
器１０としては、流量調節弁１２と検出器１３が使用さ
れている。The optical multiplex transmission field panel 8 installed on the field side includes a field optical multiplex transmission device 9 that transmits signals to and from the central control room, and an input device that outputs operation signals and inputs process signals to the controlled equipment 10 on the field. An output device 11 is housed. As the controlled device 10, a flow control valve 12 and a detector 13 are used.

このような構成の制御システムにおいて、調節計制御を
行った場合の信号の流れを説明すると、操作盤１の操作
機器３により、ある調節計の流量を設定すると、制御盤
２のプログラマブル・コントローラ６により、流量調節
弁１２の開度が演算され、中揉光多重伝送装置７→現場
光多重伝送装置９を介して入出力装置１１から電気信号
が出力され、流量調節弁１２が動作する。To explain the flow of signals when controlling a controller in a control system with such a configuration, when the flow rate of a certain controller is set by the operating device 3 of the operation panel 1, the programmable controller 6 of the control panel 2 As a result, the opening degree of the flow control valve 12 is calculated, and an electrical signal is output from the input/output device 11 via the central optical multiplex transmission device 7 → the field optical multiplex transmission device 9, and the flow rate control valve 12 is operated.

これにより変化したプロセス値は検出器１３によって検
出され、入出力装置１１に入力され、現場光多重伝送装
置９−中揉光多重伝送装置７−プログラマブル・コント
ローラ６と、現場光多重伝送装置９−中揉光多重伝送装
置５−人出力装置４を通して伝送され、操作機器３に表
示される。The process value changed by this is detected by the detector 13, inputted to the input/output device 11, and transmitted to the on-site optical multiplex transmission device 9-the optical multiplex transmission device 7-programmable controller 6, and the on-site optical multiplex transmission device 9- The signal is transmitted through the central optical multiplex transmission device 5 and the human output device 4, and displayed on the operating device 3.

ところで上述のような制御システムでは、光多重伝送現
場盤８に収納された入出力装置１１は、基板１枚単位で
活線挿抜可能な構成とし、他の系統の運転は継続させ、
基板故障時や基板変換時の保守性を向上させている。By the way, in the above-mentioned control system, the input/output device 11 housed in the optical multiplex transmission field panel 8 is configured so that it can be hot-swapped in units of one board, and the operation of other systems is continued.
Improves maintainability in the event of board failure or board conversion.

しかしながら調節弁等の制御を行うアナログ出力基板の
交換時には、基板出力は零となるため、調節弁開度は全
開または全閉となり、基板変換終了までの間、調節弁の
制御は全く不可能となる。However, when replacing the analog output board that controls control valves, etc., the board output becomes zero, so the control valve opening becomes fully open or fully closed, and control of the control valve is completely impossible until the board conversion is completed. Become.

また、発電プラントでは、系統の重要な調節計制御の場
合は、上述の基板変換時にも調節弁開度を維持、調整す
ることは不可能となる。Further, in a power generation plant, in the case of important controller control of the system, it is impossible to maintain and adjust the opening degree of the control valve even during the above-mentioned board change.

（発明が解決しようとする課題） 以上説明した従来のディジタル制御システムにおいては
、調節計制御を行っているアナログ出力基板の保守（交
換）時には、調節弁の動作か全開または全閉となり、弁
開度の調整が全く不能となる。このため、プラントの重
要な調節計制御を行うアナログ出力基板の保守時には、
プラント自体の運転を停止しなければならない事態が考
えられる。(Problems to be Solved by the Invention) In the conventional digital control system described above, when maintaining (replacing) the analog output board that controls the controller, the control valve operates either fully open or fully closed; The degree cannot be adjusted at all. Therefore, when maintaining the analog output board that controls the plant's important controllers,
There may be a situation where the operation of the plant itself has to be stopped.

本発明は上記課題を解決するためになされたもので、プ
ラントの重要な調節計制御を行うアナログ出力基板の交
換時には、手動設定器へ切替えることにより、調節弁開
度の調整を任意に行なえるようにするとともに、アナロ
グ出力基板の出力をアナログ入力基板により入力し、プ
ログラマブル・コントローラにて設定している設定値と
比較することにより、アナログ出力基板の健全性を診断
し、異常発見時には上述の手動設定器の出力にバンプレ
スに切替えることを可能としたディジタル調節計制御装
置を提供することを目的とするものである。The present invention has been made to solve the above problems, and when replacing the analog output board that controls the important controller of the plant, the opening degree of the control valve can be arbitrarily adjusted by switching to a manual setting device. In addition, by inputting the output of the analog output board through the analog input board and comparing it with the setting value set on the programmable controller, the health of the analog output board can be diagnosed, and if an abnormality is discovered, the above-mentioned The object of the present invention is to provide a digital controller control device that enables bumpless switching to the output of a manual setting device.

［発明の構成コ （課題を解決するための手段） 本発明のディジタル調節計制御装置は、プラント制御を
行うプログラマブル・コントローラと、光多重伝送装置
とを備えたディジタル調節計制御装置において、現場光
多重伝送装置、通常時に使用されるアナログ出力基板、
および入出力基板を収納する光多重伝送現場盤に、アナ
ログ出力を手動的に設定できる手動設定器と、この手動
設定器の出力信号と前記アナログ出力基板からの信号と
をバンプレスに切替える切替回路を備えることを特徴と
する。[Configuration of the Invention (Means for Solving the Problems) The digital controller control device of the present invention is a digital controller control device that is equipped with a programmable controller that performs plant control and an optical multiplex transmission device. Multiplex transmission equipment, analog output board normally used,
and a manual setting device that can manually set the analog output, and a switching circuit that bumplessly switches the output signal of this manual setting device and the signal from the analog output board on the optical multiplex transmission field panel that houses the input/output board. It is characterized by having the following.

（作用） 上述のように構成した本発明装置によれば、光多重伝送
現場盤のアナログ出力基板を交換する際には、自動−一
手動切替スイッチを手動に切替え、手動設定器の出力に
より調節弁の開度を維持・調整することができる。(Function) According to the apparatus of the present invention configured as described above, when replacing the analog output board of the optical multiplex transmission field panel, the automatic-to-manual changeover switch is switched to manual, and the adjustment is made by the output of the manual setting device. The opening degree of the valve can be maintained and adjusted.

アナログ出力基板の交換後は、自動−一手動切替スイッ
チを自動にすれば、通常の調節計制御が開始される。ま
た、アナログ出力基板の出力信号をアナログ入力基板に
より入力し、アナログ出力基板の出力設定値と比較する
ことにより、アナログ出力基板の故障を早期に発見する
ことができ、故障発見時には、切替回路が自動的に、調
節弁への出力信号を、アナログ出力基板側から手動設定
器側へ切替える。After replacing the analog output board, by setting the automatic/manual changeover switch to automatic, normal controller control will begin. In addition, by inputting the output signal of the analog output board through the analog input board and comparing it with the output setting value of the analog output board, it is possible to detect failures of the analog output board at an early stage. Automatically switches the output signal to the control valve from the analog output board side to the manual setting device side.

以上の作用により、プラントの重要なプロセスの調節計
制御を行うアナログ出力基板の保守が容易かつ確実に行
なえ、アナログ出力基板の故障が早期に発見でき、プラ
ントの運転に影響を与えることなく、復旧作業を容易か
つ確実に行なうことができる。As a result of the above actions, maintenance of the analog output board, which controls the controllers of important processes in the plant, can be easily and reliably performed, and failures of the analog output board can be detected early, allowing restoration without affecting plant operation. Work can be done easily and reliably.

（実施例） 次に、第１図を参照しながら本発明の詳細な説明する。(Example) Next, the present invention will be explained in detail with reference to FIG.

なお、第１図において、第２図におけると同一部分には
同一符号を付しである。In FIG. 1, the same parts as in FIG. 2 are given the same reference numerals.

第１図は本発明にかかるディジタル調節計制御装置のシ
ステム構成を示すもので、制御対象である現場機器１０
において検出器１３によって検出されたプロセス信号２
０は、光多重伝送現場盤８のアナログ入力基板２１にに
より入力され、現場光多重伝送装置９と、制御盤２の中
揉光多重伝送装置７を経て、プログラマブル・コントロ
ーラ６の演算器２２に入力される。演算器２２はプロセ
ス信号２０により調節弁１２の弁開度を設定し、弁開度
指令信号２３を出力する。この弁開度指令信号は、中揉
光多重伝送装置７と現場光多重伝送装置９を経てアナロ
グ出力基板２４に入力され、電気信号として切替回路２
５を介して調節弁１２に導かれる。FIG. 1 shows the system configuration of a digital controller control device according to the present invention.
Process signal 2 detected by detector 13 at
0 is input to the analog input board 21 of the optical multiplex transmission field panel 8, and is sent to the arithmetic unit 22 of the programmable controller 6 via the field optical multiplex transmission device 9 and the central optical multiplex transmission device 7 of the control panel 2. is input. The computing unit 22 sets the valve opening of the control valve 12 based on the process signal 20 and outputs a valve opening command signal 23 . This valve opening command signal is input to the analog output board 24 via the central optical multiplex transmission device 7 and the field optical multiplex transmission device 9, and is input to the switching circuit 24 as an electrical signal.
5 to the control valve 12.

アナログ出力基板２４の交換時には、自動−一手動切替
スイッチ２６により、手動側に切替えることにより、調
節弁１２への出力信号が手動設定器２７側へ切替わり、
手動設定器２７の操作により調節弁１２の開度を調整で
きる。When replacing the analog output board 24, by switching to the manual side with the automatic-to-manual changeover switch 26, the output signal to the control valve 12 is switched to the manual setting device 27 side,
The opening degree of the control valve 12 can be adjusted by operating the manual setting device 27.

プログラマブル・コントローラ６の比較器２８は、アナ
ログ出力基板２４の出力信号と、演算器２２の弁開度指
令信号２３とを入力して、それらの偏差を検出すること
によりアナログ出力基板２４の故障を検知する。The comparator 28 of the programmable controller 6 inputs the output signal of the analog output board 24 and the valve opening command signal 23 of the arithmetic unit 22, and detects a deviation between them to detect a failure of the analog output board 24. Detect.

比較器２８からの故障信号２９は中揉光多重伝送装置７
と現場光多重伝送装置９を経てディジタル出力基板３０
に導かれ、切替回路２５に切替信号を送る。これにより
、故障したアナログ出力基板２４の出力が手動設定器２
７側に切替わり、調節弁１２の開度を所望の値に調整、
維持することができる。The failure signal 29 from the comparator 28 is sent to the optical multiplex transmission device 7.
and the digital output board 30 via the on-site optical multiplex transmission device 9.
, and sends a switching signal to the switching circuit 25. As a result, the output of the failed analog output board 24 is changed to the manual setting device 2.
7 side, adjust the opening degree of the control valve 12 to the desired value,
can be maintained.

この場合、アナログ出力基板の故障は、警報表示等によ
り運転員に報知される。In this case, the failure of the analog output board is notified to the operator by an alarm display or the like.

［発明の効果〕 上述のように、本発明に係るディジタル調節計制御装置
によれば、アナログ出力基板の交換時においても調節弁
の開度調整を容易かつ確実に行うことができ、またアナ
ログ出力基板の出力を自己診断することにより基板故障
を早期に発見することができる。したがって、プラント
における重要な調節弁制御の機能が維持され、プラント
の稼働率が向上するという効果が得られる。[Effects of the Invention] As described above, according to the digital controller control device of the present invention, the opening degree of the control valve can be easily and reliably adjusted even when replacing the analog output board, and the analog output By self-diagnosing the output of the board, board failures can be detected early. Therefore, the important control valve control function in the plant is maintained, and the plant operation rate is improved.

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

第１図は本発明装置の実施例を示すブロック図、第２図
は制御システムの構成例を示す系統図である。 １・・・・・・・・・操作盤 ２・・・・・・・・・制御盤 ３・・・・・・・・・操作機器 ８・・・・・・・・・光多重伝送現場盤１０・・・・・
・・・現場機器 １２・・・・・・・・・流量調節弁 １３・・・・・・・・・検出器FIG. 1 is a block diagram showing an embodiment of the apparatus of the present invention, and FIG. 2 is a system diagram showing an example of the configuration of a control system. 1......Operation panel 2...Control panel 3...Operation equipment 8...Optical multiplex transmission site Board 10...
...Field equipment 12...Flow rate control valve 13...Detector

Claims (1)

【特許請求の範囲】[Claims] プラント制御を行うプログラマブル・コントローラと、
光多重伝送装置を備えたディジタル調節計制御装置にお
いて、現場光多重伝送装置、通常時に使用されるアナロ
グ出力基板、および入出力基板を収納する光多重伝送現
場盤に、アナログ出力を手動的に設定できる手動設定器
と、この手動設定器の出力信号と前記アナログ出力基板
からの信号とをバンプレスに切替える切替回路を備える
ことを特徴とするディジタル調節計制御装置。A programmable controller that controls the plant,
In a digital controller control device equipped with an optical multiplex transmission device, analog output can be manually set on the optical multiplex transmission field panel that houses the field optical multiplex transmission device, the analog output board used during normal use, and the input/output board. What is claimed is: 1. A digital controller control device comprising: a manual setting device capable of controlling a digital controller; and a switching circuit that bumplessly switches between an output signal of the manual setting device and a signal from the analog output board.
JP2140539A 1990-05-29 1990-05-29 Controller for digital controller Pending JPH0433101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2140539A JPH0433101A (en) 1990-05-29 1990-05-29 Controller for digital controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2140539A JPH0433101A (en) 1990-05-29 1990-05-29 Controller for digital controller

Publications (1)

Publication Number Publication Date
JPH0433101A true JPH0433101A (en) 1992-02-04

Family

ID=15271027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2140539A Pending JPH0433101A (en) 1990-05-29 1990-05-29 Controller for digital controller

Country Status (1)

Country Link
JP (1) JPH0433101A (en)

Similar Documents

Publication Publication Date Title
JP5868530B2 (en) Method and system for migrating a controller
RU2563535C2 (en) Device, system of remote control and method of testing emergency control equipment
KR100926013B1 (en) Field equipment connection module
JP5954338B2 (en) Instrumentation system and maintenance method thereof
CN110196551A (en) A kind of process control cabinet with human-computer interaction function
WO2018199116A1 (en) Control apparatus, control method, and program
JPH0433101A (en) Controller for digital controller
JP3550292B2 (en) Controller system
CN112439364A (en) High-precision automatic liquid feeding device and method
CN118346590A (en) A speed regulation control system and method for electric main feedwater pump in a nuclear power plant
JPH04147095A (en) Replacing method for measurement control equipment of central control room of existing nuclear power plant
CN113337312A (en) Pressure control system and method for gas collecting pipe
JP2514675Y2 (en) Process control equipment
PL107955B1 (en) SYSTEM OF COOPERATION BETWEEN ANALOG REGULATION SYCUPLES FOR COOPERATION OF ANALOGUE REGULATION SYSTEMS WITH A DIRECT COMPUTER CONTROL SYSTEM PRSTEMSAND A SYSTEM OF DIRECT COMPUTER CONTROL OF TECHNOLOGICAL THEOCESOLOGICAL CHNOLOGICAL PROCESSES
JPS62298801A (en) Remote control system
KR100277922B1 (en) Field data monitoring module of distributed control system
JPS60159307A (en) steam turbine control device
JPS62100814A (en) Automatic controlling and supervisory equipment
JPH01191208A (en) In-controller assembled type simulator
CN121197746A (en) A fire control system and alarm control method
KR20240081981A (en) Main control room facility configuration and operation method for multiple module operation
JPH0440721B2 (en)
JPS5960604A (en) Back-up system for panel-less instrumentation system
TW202305527A (en) Control System
JPS62261605A (en) Controller of back pressure turbine