JPS58100594A - Remote output suppression device for controller - Google Patents

Remote output suppression device for controller

Info

Publication number
JPS58100594A
JPS58100594A JP19867281A JP19867281A JPS58100594A JP S58100594 A JPS58100594 A JP S58100594A JP 19867281 A JP19867281 A JP 19867281A JP 19867281 A JP19867281 A JP 19867281A JP S58100594 A JPS58100594 A JP S58100594A
Authority
JP
Japan
Prior art keywords
output
signal
remote
transmitted
circuit
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
JP19867281A
Other languages
Japanese (ja)
Inventor
Naotomo Tsuchiya
土屋 直知
Shunji Mori
俊二 森
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19867281A priority Critical patent/JPS58100594A/en
Publication of JPS58100594A publication Critical patent/JPS58100594A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00Arrangements for preventing or correcting errors; Monitoring arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Safety Devices In Control Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To prevent the malfunction of a device due to invasion of noise on a transmission line and external disturbance such as lightning surge, by providing a remote output suppression means at an output side of a remote output device. CONSTITUTION:When a start or stop instruction signal is tranamitted from a controller 1 to remote output devices 3a, 3b via signal transmitters 2a, 2b and transmission lines 4a, 4b, a suppression release signal is transmitted via a signal line 6. Thus, the function of output suppression circuit 5a, 5b is stopped and each switch is closed. Further, when the start and stop instruction signal from the controller 1 is not transmitted, since the suppression release signal is not transmitted, the function of the circuits 5a, 5b is operated. Thus, even if the devices 3a, 3b give an error signal due to external disturbance such as noise invasion and lightning surge, the device can not be malfunctioned.

Description

【発明の詳細な説明】 本発明は、多数の機Sを集中制御する制御装置に関し、
特にそのリモート出力サプレス装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for centrally controlling a large number of machines S,
In particular, the present invention relates to the remote output suppressing device.

第tmに、多数の機器の入/切を集中制御する従来の制
御装置の概略構成を示す。図において、lは制御装置、
21〜2!1は信号伝送装置、31〜3詭はそれぞれ対
象とされている機器の入/切信号を出力するリモート出
力装置、4a〜4nは多重伝送路である。
tmth, a schematic configuration of a conventional control device that centrally controls on/off of a large number of devices is shown. In the figure, l is a control device,
21 to 2!1 are signal transmission devices, 31 to 3 are remote output devices that output ON/OFF signals of the respective target devices, and 4a to 4n are multiplex transmission lines.

制御装置1から、例えば送信側の信号伝送装置2aに入
力される機器入/切指令は、シリアル信号に変換された
後、多重伝送路4aを芥してリモート出力装置3&に送
り込まれる。
A device on/off command inputted from the control device 1 to, for example, the signal transmission device 2a on the transmitting side is converted into a serial signal and then sent to the remote output device 3& after passing through the multiplex transmission path 4a.

り毫一ト出力装置3aにおいては、受信されたシリアル
信号をパラレル信4に復元し、その出力側に接続された
それぞれの機器の入/切指令に分tsLて出力する。
The serial signal output device 3a restores the received serial signal to a parallel signal 4, and outputs it in response to the ON/OFF commands of each device connected to its output side.

送信側の他の信号伝送装置においても、全く同様の入/
切制御が行なわれる。
Exactly the same input/output is applied to other signal transmission devices on the transmitting side.
OFF control is performed.

前述のようにして、多数の機Sを起動、停止させる制御
信号を伝送するとき、起動又は停止指令の信号としては
、一般に、数秒間のパルス状のオン信号が使用される。
As described above, when transmitting control signals for starting and stopping a large number of machines S, a pulse-like ON signal of several seconds is generally used as the starting or stopping command signal.

従って、送信側の信号伝送装置2 a = 2 nに信
号が入力される時間帯は、機器を起動又は停止するとき
の、数秒間のみであり、あとの大部分の時間帯は、何ら
信号が入力されない状態である。
Therefore, the time period during which a signal is input to the signal transmission device 2 a = 2 n on the transmitting side is only for a few seconds when starting or stopping the equipment, and during most of the remaining time period, no signal is received. It is in a state where it is not input.

例えば、10台の機器を、1日1回の割で、1秒間のパ
ルス帳の信号で起動停止させる場合、前記信号伝送装置
に信号が入力される時間帯は、1日のうち (1起動+1停止)x1秒XIO台−20秒間である。
For example, when starting and stopping 10 devices once a day using a 1 second pulse signal, the time period during which the signal is input to the signal transmission device is +1 stop) x 1 second XIO units - 20 seconds.

すなわち、その割合は1日の時間のであり、0.0g3
−にすぎない。残りのi19.977−の時間は、多重
伝送路41〜4nには何らの信号も伝送されない。
That is, the proportion is of the hour of the day, 0.0g3
It's just -. During the remaining time i19.977-, no signals are transmitted to the multiplex transmission lines 41 to 4n.

ところで、良く知られているように、一般に、伝送路に
は、ノイズが入り込むことが多く、これがり篭−ト出力
錬98a〜3n側へ伝送され、出力されにとがある。こ
のような事態が起こると、誤つ九出力によって、被制御
機器が入り切りされてし★うことになる。
By the way, as is well known, in general, noise often enters the transmission path, and this noise is transmitted to the basket output lines 98a to 3n and is not output. If such a situation occurs, the controlled equipment will be turned on and off due to the incorrect output.

このように、ノイズ等による誤信号が出力され、これに
基づいてIIl器制御が実行されると、種々の不都合を
生ずることは明らかであり、場合によっては極めて危険
である。
It is clear that if an erroneous signal due to noise or the like is output and the IIl control is executed based on this, various inconveniences will occur, and in some cases, it may be extremely dangerous.

例えば、信号多重伝送装置を使って遠方の機器を起動、
停止させる様な場合、送信側で、起動ま九は停止指令を
発していないの、に、伝送装置の受信側でノイズ等を起
動または停止指令のデータとして111tつて認識し、
その11出力されて央然、機器が動自出したり、停止し
たりする場合もあり得る。
For example, using signal multiplexing equipment to start up distant equipment,
In the case of stopping, the receiving side of the transmission device recognizes noise etc. as data of a starting or stopping command even though the transmitting side does not issue a starting or stopping command.
The equipment may start or stop immediately after the 11 output is output.

前述のようなノイズによるWAIlli1作中不都合を
改善するために、色々なデータチェック方式が従来から
色々と提案され、その一部は実施されている。
In order to improve the above-mentioned problems caused by noise during WAIlli1 production, various data checking methods have been proposed, and some of them have already been implemented.

しかし、嘗す−ジなどで半導体破壊などを生ずるような
場合には、伝送路を介し′CII信号が伝送され、出力
される可能性が依然とL″C残されている。
However, if damage to the semiconductor occurs due to damage, there is still a possibility that the 'CII signal will be transmitted and output via the transmission line.

本発明は、前述のような不都合を解消するためになされ
たものであり、その目的は、送信側からデータが入力さ
れている時だけ、リモート出力装置が出力可能とされる
ような、制御装置のり峰−ト出カナプレス装置を提供す
ることにある。
The present invention has been made in order to eliminate the above-mentioned inconveniences, and its purpose is to provide a control device in which a remote output device can output data only when data is input from the transmitting side. An object of the present invention is to provide a Noriho-to-dekana press device.

前記目的を′達成するために、本発明においては、リモ
ート出力装置の出力備にり毫−ト出カサプレス(抑止)
手段を設けて、常時はリモート出力装置の出力をすべて
無効とし、送信側からデータが伝送された時だけ、前記
すプレス(抑止)手段の機能を停止して出力を“有効化
するように構成している。
In order to achieve the above object, the present invention provides a method for suppressing the output of the output device of the remote output device.
A means is provided to disable all outputs of the remote output device at all times, and only when data is transmitted from the transmitting side, the function of the press (inhibition) means is stopped and the output is "enabled". are doing.

以下に、図面を参照して本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.

第2図は本発明の一実施例のプIツク図であり、鶏1図
と同一の符号は同一を九は岡等齢分をあられしている。
FIG. 2 is a diagram of an embodiment of the present invention, in which the same reference numerals as in Figure 1 of the chicken are the same, and 9 represents the same age as Oka.

6m、!sksはリモート出力結電1.,3bの出力儒
に設けられた出力賃プレス回路、6は、制御装置lかも
出力サプレス1g111&51,5bヘナプレス解除個
号を伝送するためのすプレス解除信号線である。
6m! sks is remote output connection 1. , 3b are output press circuits, and 6 is a press release signal line for transmitting the henna press release number to the control device 1.

制御値atから、信号伝送装置2*、2bおよび伝送路
4 a * 4 b を介して、起動または停止の指令
信号がリモート出力績置3a、3bに伝送されるのと同
時に、サプレス解除信号が信号線6を介して伝送される
From the control value at, a start or stop command signal is transmitted to the remote output stations 3a, 3b via the signal transmission devices 2*, 2b and the transmission lines 4a*4b, and at the same time, a suppression release signal is transmitted. It is transmitted via the signal line 6.

これによって、出カナプレス回路5ae5bの機能が停
止される。すなわち、この図の例では、各スイッチがW
A状態とされる。
As a result, the function of the output kana press circuit 5ae5b is stopped. That is, in the example of this figure, each switch is W
It is assumed to be in A state.

一方制御装置1からの起1m/停止指令信号が伝送され
ていないときは、サグレス解除信号も送信されない。そ
れ故に、このと亀は、出力ナプVス回路1a、Sbの機
能が活かされている。
On the other hand, when the start 1 m/stop command signal from the control device 1 is not transmitted, the sag cancel signal is also not transmitted. Therefore, in this tortoise, the functions of the output nap Vs circuits 1a and Sb are utilized.

すなわち、この図の例では、各スイッチが−状態にあり
、す篭−ト出力装置が出力を生じても、これら出力がそ
れぞれの制御対象機器に供給されることは禁止されてい
る。
That is, in the example shown in this figure, each switch is in the negative state, and even if the basket output device produces an output, these outputs are prohibited from being supplied to the respective controlled devices.

それ故に、伝送−でのノイズ混入や嘗サージなどの外U
Kよって、リモート出力装置3 m、31bが誤信号を
出力したとしても、これによって該当する機器が起動、
停止されることはなくなる。
Therefore, due to noise contamination and surges during transmission,
Therefore, even if the remote output devices 3m and 31b output an erroneous signal, this will cause the corresponding device to start,
You will no longer be suspended.

菖3図は、本発明の他の実施例の要部ブロック図であり
、纂2図のそれぞれのリモート出力装置3i内に出カナ
プレス回路を設けた例である。
Figure 3 is a block diagram of a main part of another embodiment of the present invention, and is an example in which an output kana press circuit is provided in each remote output device 3i of Figure 2.

図において、31は波形整形1路、3鵞はシリアルパラ
レル変換回路、33は同期信号検出回路、34は受信制
御回路、31はレジスタ、36a。
In the figure, 31 is a waveform shaping circuit, 3 is a serial-to-parallel conversion circuit, 33 is a synchronization signal detection circuit, 34 is a reception control circuit, 31 is a register, and 36a.

36b・・・・−36mはリレー出力閏路、3丁はサプ
レス回路である。
36b...-36m are relay output jumps, and 3 are suppressor circuits.

制御装置1からの多重伝送信号は、波形隻形−路31に
より整形される。整形された受信信号は、通常の手法に
よって、シリアルパラレル変換回路32、同期信号検出
回路33および受信制御回路34により、それぞれの出
力信号暑ζ並列分解され、後段のレジスタ35に出力情
報とし″′C拍納される。
The multiplexed transmission signal from the control device 1 is shaped by the waveform channel 31. The shaped reception signal is decomposed into parallel output signals by the serial-to-parallel conversion circuit 32, the synchronization signal detection circuit 33, and the reception control circuit 34 using the usual method, and is outputted to the register 35 at the subsequent stage as output information. C is paid.

鋺記レジスタ35の内容−すなわち、出力情報は、リレ
ー−路36&〜Banから、それぞれ対応する機器に向
けて転送される。
The contents of the register 35, that is, the output information, are transferred from the relay paths 36 and 36 to the respective corresponding devices.

この実施例では、レジスタ3sと各リレー出力回路!6
1〜36nとの間に出力サプレス回路37が設けられて
いる。出力サプレス回路37は、図からも明らかなよう
に、レジスタの内容(出力情報)とすプレス信号の反転
信号を入力とするアンドグブトから構成されてiる0 動作時は、#&2図の場合と同様に、サグレス信号8G
が制御1m置lから供給されている間は、前記各アンド
ゲートが閉じられるので、レジスタの内容は出力されな
い。
In this embodiment, the register 3s and each relay output circuit! 6
An output suppress circuit 37 is provided between 1 and 36n. As is clear from the figure, the output suppress circuit 37 is composed of an input circuit that receives the contents of the register (output information) and an inverted signal of the press signal. Similarly, the sagress signal 8G
While the input signal is being supplied from the control circuit 1m, each AND gate is closed, so the contents of the register are not output.

このサプレス回路は、蝦I/I&段のリレー出力回路3
61〜mimの前段に6々ゲート素子を追加することに
より容易に実現できる。この追加によるコストアップは
、一般に、プリント基板上に一括して、全回路が塔載さ
れるため、ゲート素子分だけのアップに止どまり、鉄量
全体りストのアップには殆んど影響しない。
This suppress circuit is the relay output circuit 3 of the shrimp I/I & stage.
This can be easily realized by adding 6 gate elements to the front stage of 61 to mim. The cost increase due to this addition is generally limited to the increase in the gate element, as the entire circuit is mounted on the printed circuit board at once, and has almost no effect on the overall iron load. .

以上の説明から明らかなように、本発明によれば、送信
側の制#装置から制御指令が出力されていないときは、
受信側のリモート出力装置の出力が被制御機器へ伝達さ
れることが一括して、確実に阻止されるので、ノイズ等
の一信号によって、機器が誤操作されてしまうようなこ
とを確実に阻止し、制御系の信頼度を向上することがで
きる。
As is clear from the above description, according to the present invention, when no control command is output from the control device on the transmitting side,
Since the output of the remote output device on the receiving side is reliably prevented from being transmitted to the controlled device all at once, it is possible to reliably prevent the device from being erroneously operated due to a single signal such as noise. , the reliability of the control system can be improved.

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

第1図は従来の制御装置の1971図、第2図は本発明
の一実施例のプ曹ツク図、第5liiは本発明の他の実
施例の要部を示す1971図である。 l・・・制御装置、2 m = 2 m・・・信号伝送
装置、 ′31〜3n・・・リモート出力装置、4a〜
4n・・・多重伝送路、5m、5に+・・・出カナプレ
ス回路、6・・・ナプレス解除信号線 代壇人弁1士 平 木 道 人 21図 22 図 才31m。
Fig. 1 is a 1971 diagram of a conventional control device, Fig. 2 is a schematic diagram of one embodiment of the present invention, and Fig. 5lii is a 1971 diagram showing main parts of another embodiment of the present invention. l...Control device, 2 m = 2 m...Signal transmission device, '31~3n...Remote output device, 4a~
4n...Multiple transmission line, 5m, 5+...Dekana press circuit, 6...Naples release signal line Daidanjinben 1st master Hiraki Michihito 21 Figure 22 Figure size 31m.

Claims (1)

【特許請求の範囲】 (11制御装置から伝送路を介して伝送され九指令信号
を受信し、前記指令信号を#轟の被制御機器に肉叶て転
送するリモート出力装置を有する制御装置のリモート出
カナプレス装置であって、前記す峰−ト出力装置の出力
が該幽の被制御機器に転送されるのを禁止する出力サプ
レス回路と、制御装置から指令信号が発信され九ときだ
け前記出カナプレス回路の機能を解除する手段とを真情
し九ことを特徴とする制御装置のリモート出力すプレス
装置。 (2)  出力サプレス回路4Cよるリモート出力装置
の出力転送禁止が、リモート出力装置の全出力について
共通に、一括し1行なわれることを特徴とする特許 モート出力t 7’レスat0
[Scope of Claims] (11) A remote control device having a remote output device that receives a command signal transmitted from the control device via a transmission line, and transmits the command signal to a controlled device. The output suppressor includes an output suppress circuit that prohibits the output of the output device from being transferred to the controlled device, and the output suppressor that suppresses the output only when a command signal is transmitted from the control device. A remote output press device for a control device, characterized in that it includes a means for canceling the function of the circuit. (2) The prohibition of output transfer of the remote output device by the output suppress circuit 4C prevents the entire output of the remote output device from being inhibited. Patented mote output t7'resat0 characterized in that it is commonly performed in one batch.
JP19867281A 1981-12-11 1981-12-11 Remote output suppression device for controller Pending JPS58100594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19867281A JPS58100594A (en) 1981-12-11 1981-12-11 Remote output suppression device for controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19867281A JPS58100594A (en) 1981-12-11 1981-12-11 Remote output suppression device for controller

Publications (1)

Publication Number Publication Date
JPS58100594A true JPS58100594A (en) 1983-06-15

Family

ID=16395120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19867281A Pending JPS58100594A (en) 1981-12-11 1981-12-11 Remote output suppression device for controller

Country Status (1)

Country Link
JP (1) JPS58100594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03201003A (en) * 1989-12-28 1991-09-02 Hitachi Ltd Control system and process input/output device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313085A (en) * 1976-07-23 1978-02-06 Hitachi Ltd Multiplex transmission control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313085A (en) * 1976-07-23 1978-02-06 Hitachi Ltd Multiplex transmission control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03201003A (en) * 1989-12-28 1991-09-02 Hitachi Ltd Control system and process input/output device

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