JPS60208135A - Data transmission equipment - Google Patents

Abstract

PURPOSE:To continue normal operation even if one of duipicated contact circuits is failed by providing connecting bypass circuits in series provided with the contact circuits and further providing a circuit to be closed when one is normal in series. CONSTITUTION:The contact circuits duplicated with transmitters 2, 5 and receivers 3, 6 are provided between processors 1 and 4. Fault detection sections 31-34 are provided to each transmitter and receiver and fault detection signals 41-44 are inputted to a logical circuit 35. The logical circuit 35 is formed with a series circuit comprising NC contacts 41, 42 and a relay X1 and a series circuit comprising NC contacts 43, 44 and relay X2. When the transmitter 2 and the receiver 3 are normal, for example, the input circuit of the relay X1 is closed to excite the relay X1 and the circuit is switched by an output 11 of the receiver 3, and in case of a fault, a relay X7 is deenergized, a contact X1b bypassing the output 11 is closed and a contact X1a is opened. Thus, an output 12 switches the circuit by using the transmitter 5 and the receiver 6 and when both the system are faulty, the contacts X1a, X2a are opened and no output is produced.

Description

【発明の詳細な説明】 〔発明の技術公平ｔ〕 本発明は、接点信号を伝送Ｔる装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Technical fairness of the invention] The present invention relates to a device for transmitting contact signals.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

伝送装置は第１図に示す様に、プロセス１の各社の信号
を発信器２で遠方（二送り、送られた信号は受信器３に
受けてプロセス４　Ｃ出力する。伝送装置に信頼性が要
求される場合は、更に発イに器５と受（Ｎ器６を設け、
同一のプロセス！の信号をプロセス４Ｃ二出力する。こ
の二重化した信号の伝送Ｃ二おいて、信号が接点信号の
場合、プロセス４では第２図に示すように二つの接点４
％号、即ち、受イぎ器３の出力１１と受信器６の出力１
２の！ａ理′Ｎｔ（ＡＮＤ回路）ｒとることが多い。こ
れは、受信器３と受（ｉ器６の両方が同時ζ二回路馨閉
する偵号馨出した場合のみプロセス４に接点信号を出力
することであり、発イぎ器２と受信器３あるいは発イ８
器５と受信器６が誤動作しても、プロセス４Ｃ二誤った
出力による悪影Ｂ１＊ｒ：及ぼさないよう４二するとい
うイ呂中真性■η保の意味がある。As shown in Fig. 1, the transmission device sends the signals of each company in process 1 to a distant place (2) using a transmitter 2.The transmitted signal is received by a receiver 3 and outputted to a process 4C.The transmission device is reliable. If required, further install a vessel 5 and a receiver (N vessel 6) on the source.
Same process! A signal of 2 is output to process 4C. In this duplex signal transmission C2, if the signal is a contact signal, in process 4 the two contacts 4 are connected as shown in FIG.
%, i.e. output 11 of receiver 3 and output 1 of receiver 6
2! a = Nt (AND circuit) r is often used. This is to output a contact signal to the process 4 only when both the receiver 3 and the receiver (i) 6 output a signal that simultaneously closes two circuits, and the contact signal is output to the process 4. Or 8
Even if the receiver 5 and the receiver 6 malfunction, there is a sense of protection in order to ensure that no adverse effects are caused by the incorrect output of the process 4C2.

さて、第１図、第２図の様ｔ′−構成された伝送システ
ムでは、発信器２と受信器３（：よる伝送系と発信器５
と受信器６による伝送系のいずれかが故障して、出力１
１と出力１２のいずれかが動作しなくなると、プロセス
１のイｇ号ンプロセス４に送れなくなるという欠点があ
った。Now, in a transmission system configured as shown in FIGS. 1 and 2, a transmitter 2 and a receiver 3 (:
If one of the transmission systems by receiver 6 fails, output 1
There is a drawback that if either output 1 or output 12 stops working, the signal cannot be sent to process 4 from process 1.

〔発明の目的〕[Purpose of the invention]

本発明は、このような欠点ななくし、伝送系の一力が故
１撞した場合は、正常な伝送系で自動的に接点（，４号
の伝送ができるようにした伝送装置を提供−）−にとを
目的とする。The present invention eliminates these drawbacks and provides a transmission device that automatically connects the normal transmission system to the contact point (No. - Aimed at Nito.

〔発ｔｉｌｌの概要〕[Summary of the issue]

−Ｉ：、、記１」的を達成するために本発明では接点信
号を多ｂ１伝送する、二重化された伝送装置において一
方の伝送系ｌの出力接点に並列Ｃ接続され、伝送系ｌの
故障時バイパスする回路と、他方の伝送系２の出力接点
に並列に接続され伝送系２の故障時バイパスする回路と
、上ぎ己出力接点の直列回路と直夕ＩＪに伝送系ｌまた
は伝送系２のいずれかが正常という条件で閉と接続する
回路とを興備するこ明する。第３図、第４図で第１図、
第２図と同一機能のものは同一番号を付しその説明を省
略する。-I: In order to achieve the objective 1, in the present invention, in a duplex transmission device that transmits multiple contact signals, the output contact of one transmission system 1 is connected in parallel to the output contact of one transmission system 1, and when the transmission system 1 fails A circuit connected in parallel to the output contact of the other transmission system 2 and bypassed when the transmission system 2 fails, a series circuit of the upper output contact, and a circuit directly connected to the transmission system 1 or the transmission system 2. It is explained that a circuit that is connected to the closed circuit is provided under the condition that either of the two is normal. Figure 3, Figure 4, Figure 1,
Components with the same functions as those in FIG. 2 are given the same numbers and their explanations will be omitted.

第３図において、３１は発信器２の、３２は受信器３の
、３３は光信器５の、３４は発信器６のそれぞれ故障検
出装置であり、故障検出の信号４１　、４２　、４３　
。In FIG. 3, 31 is a failure detection device of the transmitter 2, 32 is a receiver 3, 33 is an optical transmitter 5, and 34 is a failure detection device of the transmitter 6, and failure detection signals 41, 42, 43
.

４４がそれぞれ出力される。これらの信号は、各々独立
したケーブル等によって論理回路３５に入力される。論
理回路３５では、第４図に示すように信号４１と信号４
２の論理積をリレーＸｔの六方ｎｆｉ号とする。44 are output respectively. These signals are input to the logic circuit 35 through independent cables and the like. In the logic circuit 35, as shown in FIG.
Let the logical product of 2 be the hexagonal nfi number of the relay Xt.

また信号４３と信号４４の論理積をリレーＸ２の入力信
号とする。信号４１　、４２　、４３　、４４はいずれ
も故障時回路（接点）￥開する信号とすΦ。即ち、正常
時閉する信号とする。従って、発信器２と受信器３の両
方が正常の場合リレーＸｔの入力回路は閉され、リレー
Ｘｉは励磁する。また、発イ８器５と受信器６の両方が
正常の場合リレーＸ２の入力回路は閉されリレーＸ２は
励ｔｉｎ丁ｏ０さて、プロセス４への出力は、以下の様
Ｃ二構成する。部ち、発（Ｍ器２と受信器３が正常のと
きは、受信器３の出力１１により回路の開、閉が決まる
が、異常のときは出力１１をバイパスする様ｉニリレー
Ｘｔの辿接点Ｘｌｂ　（リレーＸＩが励磁されないとき
閉する接点）を平列に接続する。これ（二よって異常の
ときは、出力１１の如何にかかわらずこの部分の回路は
閉される。また発信器５と受信器６、出力１１およびリ
レーＸ２の関係も同様とする。更（二、発イー器２と受
信器３の伝送系および光信器５と受信器６の伝送系の両
方が故障した場合は出力回路がバイパス回路によって閉
されない様にリレーＸｉとリレーＸ２のいずれか一方が
励磁されているという条件（ＸｌとＸｌの論理和）を出
力回路に直列に接続Ｔ金。Further, the logical product of the signal 43 and the signal 44 is used as the input signal of the relay X2. Signals 41, 42, 43, and 44 are all signals that open the circuit (contact) in the event of a failure. In other words, it is a signal that is normally closed. Therefore, when both transmitter 2 and receiver 3 are normal, the input circuit of relay Xt is closed and relay Xi is energized. Further, when both the transmitter 5 and the receiver 6 are normal, the input circuit of the relay X2 is closed and the relay X2 is activated.Now, the output to the process 4 is configured as shown below. (When the M unit 2 and receiver 3 are normal, the open or close of the circuit is determined by the output 11 of the receiver 3, but when it is abnormal, the output 11 is bypassed.) Xlb (contact that closes when relay The relationship between the transmitter 6, the output 11, and the relay The condition that either relay Xi or relay X2 is energized (logical sum of Xl and Xl) is connected in series to the output circuit so that it is not closed by the bypass circuit.

以上のようＣ二構成された本発明では、たとえば、発信
器２と受信器３のいずれかが故障して伝送不能に陥いっ
た場合、リレーＸＩが励磁されなくなり、出力１１のバ
イパス回路（ｘｌりが閉されるため、プロセス４への出
力回路は発信器５と受信器６が正常である限り出力■２
の状態のみに依存することとなる。発信器５と受信器６
のいずれかが故障して、発信器２と受信器３が正常な場
合も同様である。In the present invention having the C2 configuration as described above, for example, if either the transmitter 2 or the receiver 3 fails and transmission becomes impossible, the relay XI is no longer energized and the bypass circuit (xl As long as the transmitter 5 and receiver 6 are normal, the output circuit to process 4 will be output ■2.
It depends only on the state of . Transmitter 5 and receiver 6
The same applies when either one of the transmitter 2 and the receiver 3 is normal but one of the transmitter 2 and the receiver 3 is normal.

また、発（ｇ器２と受４ｇ器３のいずれかが故障しかつ
発信器５と受信器６のいずれかが故障した場合は、リレ
ーＸ１とＸｌの両方共励磁されなくなりプロセス４への
出力回路は開とされたままとなる。Additionally, if either the transmitter 2 or the receiver 3 fails, and either the transmitter 5 or the receiver 6 fails, both relays X1 and Xl will not be energized and the output to process 4 will be The circuit remains open.

なお、伝送系の全てが正常の場合は、出力１１、出力１
２のバイパス回路は開とされるため、信頼性の確保され
た論理積出力となる。In addition, if all of the transmission system is normal, output 11, output 1
Since the bypass circuit No. 2 is open, a logical product output with guaranteed reliability is obtained.

〔発明の効果〕〔Effect of the invention〕

以上の作用の結果、本発明では二Ｍ【伝送系のうち、両
方が正常な場合は信頼性ある従来の伝送が行なわれ一方
の伝送系が故障した場合は正常な伝送系で伝送が行なわ
れる。また両方の伝送系が故障した場合には、出力回路
ン確実Ｃユ開する回路が付加されるため、誤った信号部
ζユよ、るトラブルがなくなる。しかも、故障検出から
論理回路は、伝送装置とは別のハードフェアによる構成
のため、伝送装置の故障Ｃ二よる悪影１７ｄＩを受けず
、確実イ：各社の接点信号を送受信できるものとなる。As a result of the above-mentioned actions, in the present invention, reliable conventional transmission is performed when both of the transmission systems are normal, and when one transmission system is out of order, transmission is performed using the normal transmission system. . Furthermore, since a circuit is added to ensure that the output circuit C is opened in the event that both transmission systems fail, troubles caused by an incorrect signal section ζ are eliminated. Moreover, since the logic circuit from failure detection is configured by hardware separate from the transmission device, it is not affected by the negative effects of 17 dI due to the failure of the transmission device, and can reliably transmit and receive contact signals from various companies.

また、論理回路ン構成するに必要なものは、いくら多誕
の（Ｍ号伝送を行なっても４本のケーブルと、名士のリ
レー（リレーは１個で多くの増幅接点を出し得るため、
１個で多くの論理回路が構成され得る）であり、簡袷な
構成で経済的な伝送装置を提供できｏｏIn addition, what is required to configure a logic circuit is four cables (no matter how many times M number transmission is performed) and a famous relay (because one relay can output many amplification contacts,
(Many logic circuits can be configured with one piece), and it is possible to provide an economical transmission device with a simple configuration.oo

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

第１図は従来の伝送装置を示すブロック図、第２図は従
来の伝送装置出力回路の一例を示す回路図、第３図は本
発明の伝送装置を示すブロック図、弔４図は本発明の（
ム送装置出力回路な示す回路図であり。 １．４・・・プロセス、　２，５・・・発信器、３．６
・・・受信画、 ３１　、　Ｊ２　、３３　、３４　・・・故障検出器、
３５・・・論理回路、４１　、４２　、４３．４４　・
・・故障検出の信号、代理人　弁理士　則　近　憲　佑 （ばか１名） 第１図 第２図 第３図 第４図Fig. 1 is a block diagram showing a conventional transmission device, Fig. 2 is a circuit diagram showing an example of a conventional transmission device output circuit, Fig. 3 is a block diagram showing a transmission device of the present invention, and Fig. 4 is a block diagram showing an example of a conventional transmission device output circuit. of(
FIG. 2 is a circuit diagram showing the output circuit of the system sending device. 1.4... Process, 2,5... Transmitter, 3.6
... Reception image, 31, J2, 33, 34 ... Failure detector,
35...Logic circuit, 41, 42, 43.44 ・
...Failure detection signal, agent Patent attorney Noriyuki Chika (one idiot) Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 接点信号を歪量伝送する、二重化された伝送装置におい
て一方の伝送系の出力接点に並列に接続され、その伝送
系の故障時バイパスする回路と、他方の伝送系の出力接
点に並列に接続されその伝送系の故障時バイパスする回
路と、上記出力接点の直列回路と直列に一方の伝送系ま
たは他方の伝In a duplex transmission device that transmits a contact signal in a distorted amount, a circuit is connected in parallel to the output contact of one transmission system and bypassed in the event of a failure of that transmission system, and a circuit is connected in parallel to the output contact of the other transmission system. A circuit that bypasses the transmission system in the event of a failure, and a circuit that connects one transmission system or the other transmission system in series with the series circuit of the above output contact.