JPS58195210A - Data transmitting device of industrial controlling system - Google Patents

Data transmitting device of industrial controlling system

Info

Publication number
JPS58195210A
JPS58195210A JP57078035A JP7803582A JPS58195210A JP S58195210 A JPS58195210 A JP S58195210A JP 57078035 A JP57078035 A JP 57078035A JP 7803582 A JP7803582 A JP 7803582A JP S58195210 A JPS58195210 A JP S58195210A
Authority
JP
Japan
Prior art keywords
output
data
input
remote
central processing
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
JP57078035A
Other languages
Japanese (ja)
Inventor
Masaki Murakami
村上　正喜
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP57078035A priority Critical patent/JPS58195210A/en
Publication of JPS58195210A publication Critical patent/JPS58195210A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0745—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in an input/output transactions management context

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To improve the reliability of data transmission, by turning back output data of an output circuit connected to a remote input/output bus and collating turned-back data with output data. CONSTITUTION:Input data from an industrial process is transmitted to a central processing device through an input circuit 40, a remote I/O bus 32, and a transmitting/receiving part 22. Output data based on this input from the central processing device 10 is supplied to an output circuit 50 through the transmitting/ receiving part 22 and the bus 32. The output circuit 50 outputs its output to the industrial process and turns it back to the bus 32 through an output turning- back circuit 50'. A remote processor 24 collates turned back output data with output data and reports the result to the central processing device 10. Thus, it is self-diagnosed whether operations of the remote input/output device and the output circuit are normal or not to improve the reliability of data transmission.

Description

【発明の詳細な説明】 本発明は産業制御システム用データ伝送装置に関し、特
ニリモート入出力パスを介して転送されるデータによ抄
生産プロセスを制御するようＫした産業制御システム用
データ伝送装置Ｋｍする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data transmission device for an industrial control system, and in particular a data transmission device for an industrial control system Km that controls a papermaking production process by data transferred via a remote input/output path. do.

最近の産業制御システムは、生産プロセスにおける製品
の高品質化、生産の高速化、設備の自動化、４ｉ力化な
どの要求によりますます高変化、複雑化し、それ罠伴い
プロセスからの入出力データ酸は膨大になってきている
。近年このような産業制御システムの制御を中央処理装
置を含む計算機で監視することによって処理能力、信頼
性は飛躍的に向上するよう罠なってきている。Ｉ！！に
計算機の直接制御により処理して−た機能を分割し、複
数台のコントローラへと分散することで制御対象毎に配
置する一方、計算機には上位の７ステム制御を行わせる
といった、階層化された制御クステムが実用化されるよ
う罠なってきた。Recent industrial control systems are becoming more and more complex due to demands for higher product quality, faster production, equipment automation, and 4I power generation in the production process, and with this comes the need for input and output data from processes. It is becoming huge. In recent years, the control of such industrial control systems has been monitored by computers including central processing units, which has led to dramatic improvements in processing power and reliability. I! ! By dividing the functions processed by direct control of the computer and distributing them to multiple controllers, they are arranged for each control target, while the computer is made to control the upper 7 systems. It is becoming increasingly common for control systems to be put into practical use.

こうした鑑点に立った産業制御システムにおけるデータ
伝送手段の１つとして、最近計算機のプロセス入出力装
置を中央制御部から分離し、制御対象の近くに配置する
リモート入出力シス□テムが採用されるよう罠なってき
た。このリモート入出カシステムの採用によ妙計算機を
構成する中央処理装置がプロセス現場における温廖、湿
変、雑音。Taking this into consideration, remote input/output systems have recently been adopted as one of the data transmission means in industrial control systems, in which computer process input/output devices are separated from the central control unit and placed near the control target. It's becoming a trap. By adopting this remote input/output system, the central processing unit that makes up the computer can reduce temperature, humidity, and noise at the process site.

振動婢の外部雰□囲気の影響を受けないようＫすること
ができる。、、：このリモート入出カシステムの動作概
要は、中央処理装置からの出力データをクリ、′： アル伝送の切口より受暖って、生育プロセスへ出′１１
１１・ 力すると共に１人力をセンスして同様に７リアル　　朱
伝送の切口を経由して上位の中央処理装置へデータを伝
達している。It can be made so that it is not affected by the vibrating external atmosphere. ,,: An overview of the operation of this remote input/output system is as follows: Clear the output data from the central processing unit.
11. At the same time as applying power, it also senses the power of one person and similarly transmits data to the upper central processing unit via the 7-real red transmission cut.

このリモート入出力装置は、中、央処理装置からのシリ
アルデータの送受信部、リモートプロセサ（遠隔処理装
置）　、　ＲＯＭやＲＡＭ等のメモリ等がリモートエバ
パを介し−で生産プロセスへのｊＬ、−４４１−力回路
に接続されてお秒、こめ人出回路は、ディジタル入出力
部、アイソレーグヨン用の７オトーカプラ、信号レベル
変換部から構成されている。従って、シリアル伝送の受
信部からリモートエバパスを経由してリモートエバパス
により生産プロセスに対してデータが出力される途中で
、リモートプロセサやリモートパスの異常、出力回路を
構成するディジタル出力部、出力用フォト・カプラ。This remote input/output device is capable of transmitting and receiving serial data from the central processing unit, remote processor (remote processing unit), memory such as ROM and RAM, etc. to the production process via the remote evaporator. The output circuit, which is connected to the power circuit, consists of a digital input/output section, a 7-auto coupler for isolation, and a signal level conversion section. Therefore, while data is being output from the serial transmission receiving section to the production process by the remote Eva-pass via the remote Eva-pass, an abnormality in the remote processor or the remote path may occur, and the digital output section making up the output circuit or the output photo coupler.

出力用信号レベル変換部における異常などＫよって誤動
作した場合、中央処理装置から生産プロセスへ正確に出
力データを出力しているという保償がなく信頼性のある
データ伝送を実現することが困麹であった。If a malfunction occurs due to an abnormality in the output signal level converter, there is no guarantee that output data is accurately output from the central processing unit to the production process, making it difficult to achieve reliable data transmission. there were.

本発明は上記の点に鏝みてなされたもので、リモート入
出力装置や出力回路の動作が正常であるかどうかを簡拳
に自己診断することを可能にしデータ伝送の信頼性の向
上を計った産業制御システム用データ伝送装置を提供す
ることを目的とする。The present invention has been made in consideration of the above points, and aims to improve the reliability of data transmission by making it possible to easily self-diagnose whether the operation of remote input/output devices and output circuits is normal. The purpose is to provide a data transmission device for industrial control systems.

本発明ではこの目的を達成するために、リモート人出力
バスに結合された各生産プロセスへの出力回路の信号変
換部を通過した出力データをリモート人出力バスへ折返
し、この折返されたデータと出力データとを照合するよ
うにした手段を設けたことを特徴としている。In order to achieve this object, the present invention loops back the output data that has passed through the signal converter of the output circuit for each production process connected to the remote human output bus to the remote human output bus, and connects the looped data and output data to the remote human output bus. It is characterized by the provision of a means for collating data.

以下、本発明の一実施例を添附された図面と共に説明す
る。Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

第１図は本発明に係る産業制＃７ステム用データ伝送装
置の回路構成を示すブロック図である。FIG. 1 is a block diagram showing the circuit configuration of a data transmission device for industrial #7 system according to the present invention.

ｌＯは上位階；−の中央処理装置、加はリモート入出力
装置を示している。このリモート入出力装置船は中央処
理装置１０との７リアル信号Ｓの送受信を行う送受信部
ｎと、このリモート入出力装置船の信号の処理を行うリ
モートプロセサ、？４ト、ＲＯＭ、＃　、　ＲＡＭ２８
．　ＩＪモートプロセサ２４の異常監視を行う監視タイ
マ勇が夫々リモートエ１０バス２に接続されている。こ
のリモート人出力装置加は更に生産プロセス側からの接
点入力信号をリモー）　１１０□ ：、：・１、 バスへ人力ｒるための入力回路−とリモートエ１０バス
から生産プロセスへ接点出力信号を出力する出刃回路５
０が設けられている。この入力回路楯は、生産プロセス
からの複数の接点出力の信号レベルをこのリモート入出
力装置ｚＢ信号レベルに変換するための信号レベル変換
ＷＡ、４１１と、アイソレーア１ン用のフォト・カツラ
舗と、ディジタル入力部賛から構成されている。また出
力回路間は、リモートＩ１０ハス譜からのデータが供給
されるディジタル出力部ｓｚと、アイソレーア１ン用フ
オト・カプラ５４と、生産プロセスの信号レベルに変換
する信号レベル変換部５６から構成されている。本発明
では上述した出力回路間と共に１出力折返し回路類′が
設けられている。この出力折返し回路間′は、出力回路
間の信号レベル変換部５６を通過した信号、′、′。10 indicates the central processing unit on the upper floor; and 1 indicates the remote input/output device. This remote input/output device ship includes a transmitter/receiver unit n that sends and receives seven real signals S to and from the central processing unit 10, and a remote processor that processes signals of this remote input/output device ship. 4, ROM, #, RAM28
．． Monitoring timers for monitoring abnormalities in the IJ remote processors 24 are connected to the remote processors 10 and buses 2, respectively. This remote human output device also outputs contact input signals from the production process side) 110□:,:・1, Input circuit for inputting human power to the bus and outputs contact output signals from the remote bus to the production process. Deba circuit 5
0 is set. This input circuit shield includes a signal level conversion WA, 411, for converting the signal level of a plurality of contact outputs from the production process into the signal level of this remote input/output device zB, and a photo wig for the isolaire 1, It consists of a digital input section. Furthermore, the output circuit is comprised of a digital output section sz to which data from the remote I10 lotus sheet is supplied, a photo coupler 54 for isolaire 1, and a signal level conversion section 56 that converts the signal level to the signal level of the production process. There is. In the present invention, one-output folding circuits' are provided in addition to the above-mentioned output circuits. Between the output folding circuits' are the signals ', ' that have passed through the signal level converter 56 between the output circuits.

のレベル変換を行う央めの信号レベル変換部５２′と、
アイソレーク田ン用フォト・カプラ５４′と、ディジ　
　　１タル入力部ｓｇ’とから構成されている。a central signal level conversion section 52' that performs level conversion;
Photo coupler 54' for isolation lake and digital
1-tal input section sg'.

本発明の一実施例は上記のように構成されており、次に
その動作の説明を行う・ 生産プロセスからの入力データは、入力回路−の信号レ
ベル変換部４２，７オト・カプラ４４．ディジタル入力
部鋳から従来と同様に取り込鵞れリモートエ１０パスＸ
を介してり゛′モートプロセサＸの監視の下で必要なデ
ータをＲＡＭ　ｆｆ等に一時記憶したり、送信部ｎを介
して中央処理装置１０ヘデータ転送して入力処理を行う
。一方、この人力に基づく中央処理装置１０からの出力
データは、受信部ｎ。One embodiment of the present invention is configured as described above, and its operation will be explained next. Input data from the production process is input to the signal level converter 42, 7 of the input circuit, and the auto coupler 44. 10 passes of remote input from the digital input section as before.
Under the supervision of remote processor X, necessary data is temporarily stored in RAM ff, etc., and data is transferred to central processing unit 10 via transmitter n for input processing. On the other hand, the output data from the central processing unit 10 based on this human power is sent to the receiving section n.

リモートＩ１０バス３を介して出力回路間へ供給される
。出力回路間では、ディジタル出力部５３．フォトカプ
ラ５１　、信号レベル変換部ｊ６を介して生産プロセス
へ出力されると共に、この信号レベル変換部６６を通過
した出力が出力折返し回路間′の信号レベル変換部５２
’、フォト・カプラ５−′、ディジタル入入力部５警 れる。リモートプーセｔＭはこの折返された出力データ
と出力データとを照合し、一致していれば正常，不一致
であれば異常として中央処理装置１０へ報告する。また
、この時不一致の接点番号をＲＡＭ５婢で記憶して，ど
の接点出力が故障しているかを中央処理装置１０へ報告
する。これＫよって中央処理装置１０は出力回路のどの
接点出力が故障であるか、あるいはリモート入出力装置
園のどの回路素子部分が異常かを認識し、所要の診断出
力を送出する。これに基づき故障，異常箇所を修復する
ことによりリモート入出力装置船は正常に復帰する。な
お、前述したようにリモート入出力装置船でも監視タイ
マｙが付設されているので、リモ−トプロセサＮの異常
監視も合わせて行うことができる。The signal is supplied between the output circuits via the remote I10 bus 3. Between the output circuits, a digital output section 53. The photocoupler 51 is output to the production process via the signal level converter j6, and the output that has passed through the signal level converter 66 is sent to the signal level converter 52 between the output return circuits.
', photo coupler 5-', digital input/input unit 5 alarm. The remote pouch tM compares the returned output data with the output data, and reports it to the central processing unit 10 as normal if they match, and as abnormal if they do not match. Further, at this time, the inconsistent contact numbers are stored in the RAM 5, and which contact output is malfunctioning is reported to the central processing unit 10. Accordingly, the central processing unit 10 recognizes which contact output of the output circuit is at fault or which circuit element part of the remote input/output device is abnormal, and sends out the required diagnostic output. Based on this, the remote input/output device ship will return to normal by repairing the malfunctions and abnormalities. As mentioned above, since the remote input/output device ship is also equipped with a monitoring timer y, abnormality monitoring of the remote processor N can also be performed.

本発明に係る産業制御／ステム用データ伝送装置は、リ
モート入出力バスに結合された出力回路の信号レベル変
換部を通過した出力データを折返して、この折返された
データと出力データとを照合するようにしたので、リモ
ート入出力装置や出力回路の動作が正常であるかどうか
を簡単に自己診断でき、それによってデータ伝送の信頼
性を向上できるという特長を有する。The industrial control/system data transmission device according to the present invention loops back the output data that has passed through the signal level converter of the output circuit coupled to the remote input/output bus, and collates the looped data with the output data. As a result, it is possible to easily self-diagnose whether the operation of the remote input/output device or the output circuit is normal, thereby improving the reliability of data transmission.

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

第１図は本発明に係る産業ンステム用データ伝送装置の
回路構成を示す！ロック図である。 １０・・・中央処理装置、加・・・リモート入出力装置
、ｎ・・・送受信部、Ｎ・・・リモートプロセサ、Ｘ・
・・ＲＯＭ　。 ３・・・ＲＡＭ、＃・・・虻視タイマ、！・・・リモー
ト入出力バス、−・・・入力回路、薗・・・出力回路、
父′・・・出力折返回路、４２．５２’、５６・・・信
号レベル変換部、４４．５４’。 Ｊ４・・・フォト・カプラ、４８．５１５’、６２・・
・ディジタル出力部。FIG. 1 shows the circuit configuration of a data transmission device for industrial systems according to the present invention! It is a lock diagram. 10...Central processing unit, add...Remote input/output device, n...Transmission/reception unit, N...Remote processor, X...
...ROM. 3...RAM, #...eye-sight timer,! ...Remote input/output bus, -...Input circuit, Sono...Output circuit,
Father'... Output folding circuit, 42.52', 56... Signal level conversion section, 44.54'. J4...Photo coupler, 48.515', 62...
・Digital output section.

Claims (3)

【特許請求の範囲】[Claims] （１）　　上位階層の中央処理装置の７リアル伝送路に
各生産プロセス毎′に分散配装置され□たリモート入出
力装置を接続し、リモート入出□力パスを介して転送さ
れるデータにより前記生産プロセスを制御するようにし
た産業−御ンステム用データ伝送装置において、前記リ
モート入出カッくスに結合された各生産プロセスへの出
力回路の信号レベル変換部を通過した出力データを骸リ
モート入出力バスに折返し、この折返されたデータと出
力データとを照合するようにした手段を備えたことを特
徴とする産業制御ンステム用データ伝送装置。(1) Remote input/output devices distributed for each production process are connected to the 7-real transmission path of the central processing unit in the upper layer, and data transferred via the remote input/output path is used to control the production process. In an industrial-system data transmission device designed to control a process, the output data that has passed through the signal level converter of the output circuit for each production process connected to the remote input/output bus is transferred to the remote input/output bus. 1. A data transmission device for an industrial control system, comprising means for returning the returned data to the output data. （２）前記照合手段は、照合結果によ抄前記リモート入
出力装置及び前記出力回路の少くとも一方の正常、異常
の判定を行い、必要に応じてその照合結果を上位階層の
中央処理装置に報告することを特徴とする特許請求の範
囲第１項記載の産業制御クステム用データ伝送装置。(2) The verification means determines whether at least one of the remote input/output device and the output circuit is normal or abnormal based on the verification results, and transmits the verification results to a central processing unit in a higher hierarchy as necessary. A data transmission device for an industrial control system according to claim 1, characterized in that the data transmission device for an industrial control system reports. （３）前部−出力回路の出力が複数の接点出力を含み、
前記照合手段によ動接点出力のいずれかが異常であると
判定された時該轟する接点出力を前記プロセス入出力装
置のメモリに記憶して、上位階１−の中央処理装置へ報
□告することを特徴とする特許請求の範囲第１項記載の
産業制御システム用データ伝送□装置。(3) the output of the front-output circuit includes a plurality of contact outputs;
When any of the dynamic contact outputs is determined to be abnormal by the verification means, the roaring contact output is stored in the memory of the process input/output device and reported to the central processing unit on the upper floor 1-. A data transmission device for an industrial control system according to claim 1, characterized in that:
JP57078035A 1982-05-10 1982-05-10 Data transmitting device of industrial controlling system Pending JPS58195210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57078035A JPS58195210A (en) 1982-05-10 1982-05-10 Data transmitting device of industrial controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57078035A JPS58195210A (en) 1982-05-10 1982-05-10 Data transmitting device of industrial controlling system

Publications (1)

Publication Number Publication Date
JPS58195210A true JPS58195210A (en) 1983-11-14

Family

ID=13650554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57078035A Pending JPS58195210A (en) 1982-05-10 1982-05-10 Data transmitting device of industrial controlling system

Country Status (1)

Country Link
JP (1) JPS58195210A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015118715A (en) * 2015-02-18 2015-06-25 株式会社東芝 Diagnostic output device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015118715A (en) * 2015-02-18 2015-06-25 株式会社東芝 Diagnostic output device

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