WO2012049738A1 - Slave station terminal - Google Patents

Slave station terminal Download PDF

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Publication number
WO2012049738A1
WO2012049738A1 PCT/JP2010/067901 JP2010067901W WO2012049738A1 WO 2012049738 A1 WO2012049738 A1 WO 2012049738A1 JP 2010067901 W JP2010067901 W JP 2010067901W WO 2012049738 A1 WO2012049738 A1 WO 2012049738A1
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Prior art keywords
terminal
slave station
data signal
response
station
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PCT/JP2010/067901
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French (fr)
Japanese (ja)
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齋藤善胤
錦戸憲治
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株式会社エニイワイヤ
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Priority to JP2012538496A priority Critical patent/JPWO2012049738A1/en
Priority to PCT/JP2010/067901 priority patent/WO2012049738A1/en
Publication of WO2012049738A1 publication Critical patent/WO2012049738A1/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems

Definitions

  • the present invention relates to a slave station terminal that transmits control and monitoring signals to and from a master station via a common data signal line.
  • the common data signal line is a signal line in which a plurality of slave station terminals are connected in parallel, and a master station is connected in parallel to the plurality of slave stations.
  • the number of wires Reduction of wiring leads to a reduction in wiring space, a reduction in wiring man-hours, a reduction in device manufacturing time, or downsizing of equipment, thereby making it possible to improve equipment reliability and reduce costs.
  • Japanese Patent Laid-Open No. 2002-271878 discloses a control / monitoring signal including a master station connected to a control unit and a data signal line, and a plurality of slave stations connected to the data signal line and a corresponding controlled device. A transmission system is disclosed.
  • slave station terminals In the control / monitoring signal transmission system as described above, a large number of slave station terminals are installed. However, these slave station terminals may be installed in dimly lit or narrow sites. Confirmation work may be difficult. In addition, it becomes difficult to identify each individual terminal of multiple slave station terminals. It took time.
  • control / monitor signal transmission systems are used in various devices, and various requirements are imposed on the shape of the slave station terminal.
  • One such requirement is downsizing.
  • actuator control it is conceivable to use a slave station terminal equipped with a sensor to grasp the rod position in the cylinder. In this case, the slave station terminal is downsized so as not to hinder the movement of the actuator. There is a need to.
  • the slave station terminal when the slave station terminal is reduced in size, the surface area is naturally reduced, so that the surface cannot be used for information display (model display, specification display, etc.). Since individual identification of multiple slave station terminals becomes difficult, as in the case described above, identification of the slave station terminal that is a problem when a system malfunction occurs, and the slave station terminal at the time of system construction It takes time and effort to confirm the suitability of the arrangement state.
  • an object of the present invention is to provide a slave station terminal that can easily perform solid identification without taking time and effort.
  • the first slave station terminal is connected to a common data signal line and transmits signals with the master station connected to the common data signal line.
  • a notification response to the response request signal is included.
  • the broadcast response data signal including the unique identification information may be delivered to the master station and / or the terminal display.
  • the second slave station terminal is connected to a common data signal line and transmits signals to and from the master station connected to the common data signal line.
  • the broadcast response data signal including the unique identification information is delivered to a separate terminal display.
  • It may comprise means for receiving the response request signal transmitted from the master station and / or the response request signal transmitted from the terminal display.
  • the slave station terminal that transmits a signal to the master station responds directly to the response request signal including the unique identification information of the local station. It becomes possible to easily identify each individual of a plurality of slave station terminals using the presence or absence.
  • the response request signal may be transmitted from the master station or may be transmitted from a separate terminal display. In either case, the response request signal is received. It is necessary to provide means. If a response request signal can be issued from a separate terminal display unit, the presence / absence of the slave station terminal's notification response can be determined by operating only at the site where the slave station terminal is installed, without depending on the master station. It can be confirmed and identification work can be performed more easily.
  • the format of the notification response there is no restriction on the format of the notification response, and it should be easy to recognize depending on the situation, but if it is displayed by the display means provided in the local station terminal or the emitted sound by the electronic circuit, it can be used even in dimly lit sites Can be easily identified. Further, if the notification response data signal including the unique identification information is delivered to a separate terminal display, the identification work can be performed very easily with the terminal display placed at hand. Moreover, the display content can be displayed in various formats, for example, letters and numbers.
  • the notification response data signal from the slave station terminal to the terminal display may be delivered in a non-contact manner using light or electromagnetic waves, or in a contact manner using a connector cable or the like.
  • the unique identification information can be determined according to the purpose of identification. For example, if the device specifications of the slave station terminal are used, the slave station terminal having a desired specification can be identified. In addition, if the address assigned to each of the slave station terminals is used, the slave station terminal to which a specific address is assigned can be identified, and an incorrect address setting or an incorrect installation position can be confirmed. .
  • This control / monitor signal transmission system is used for actuator control, and includes a plurality of actuators 1 and a control unit 5 for these actuators 1.
  • a parent station 4 is connected to the control unit 5, and common data signal lines DP and DN (hereinafter referred to as common data signal lines DP and DN) are connected to the parent station 4.
  • each of the plurality of actuators 1 is provided with a corresponding slave station output terminal 3, and each of the slave station output terminals 3 is connected to the common data signal lines DP and DN.
  • a slave station input terminal 2 that detects the position of the cylinder rod of the actuator 1 is also connected to the common data signal lines DP and DN.
  • These slave station input terminal 2 and slave station output terminal 3 correspond to the slave station terminals of the present invention. In the following description, these may be collectively referred to as slave station terminals 2 and 3.
  • the control unit 5 is, for example, a programmable controller, a computer, and the like, and includes an output unit 51 that transmits control data 53 and an input unit 52 that receives monitoring data 54 according to the position of the cylinder rod of the actuator 1.
  • the output unit 51 and the input unit 52 are connected to the master station 4.
  • the master station 4 delivers the monitoring data 54 of the monitoring signal sent from the slave station input terminal 2 to the control unit 5 and generates a series of pulse signals based on a predetermined timing signal. It is sent to DP and DN.
  • a series of pulse signals transmitted to the common data signal lines DP and DN are referred to as transmission clock signals.
  • a series of pulse signals constituting the transmission clock signal is followed by a start signal (STB) indicating the start of the signal, and an address is assigned to the period of each pulse.
  • a predetermined number of cycles are assigned to one of the slave station terminals 2 and 3.
  • two cycles following the start signal are assigned to the slave station input terminal A, and the following two cycles are assigned to different slave station input terminals B.
  • each subsequent period is similarly assigned to either of the slave station terminals 2 and 3.
  • the address assigned to the period of each pulse is the address of the slave station terminals 2 and 3 to which the period is assigned.
  • the head address of the slave station input terminal A is # 1
  • the head address of the slave station input terminal B is # 3.
  • the slave station input terminal 2 includes a magnetic detection unit 22 that detects the amount of magnetism of a magnet built in a predetermined position of the rod in the cylinder of the actuator 1, and a separate terminal display 6 that displays unique identification information of the local station.
  • MCU21 which is a microcomputer control unit as an internal circuit
  • the magnetic detection part 22 and the light reception part 24 for communication are each connected to the input terminals INS and INA of MCU21, and the light projection part 23 for communication and alert response
  • the display unit 25 is connected to the output terminals LEA and OUTA of the MCU 21, respectively.
  • the MCU 21 includes a CPU, a RAM, and a ROM.
  • the ROM includes programs necessary for detection processing and communication with the terminal display 6, and unique addresses such as local address information, model information, and specification information. Identification information is stored. Further, the detection data is stored in the RAM. Then, processing for obtaining information necessary for detection is performed using the arithmetic function of the CPU.
  • the MCU 21 together with the communication light receiving unit 24 constitutes a response request signal receiving means in the present invention.
  • the addresses assigned for each cycle of the transmission clock signals of the common data signal lines DP and DN input from the input terminal CK are counted.
  • the MCU 21 changes the detected data held in the RAM according to the timing of the transmission clock signal.
  • a corresponding signal is output from the output terminal OUT to the base of the transistor TR as the superimposition timing of the monitoring data signal of the local station. Specifically, if the detection data is “on” (indicating that the in-cylinder lot is in a predetermined position), the transistor TR is turned on, the current flows, the voltage drops, and the voltage level is 0V.
  • the signal is transmitted on the common data signal lines DP and DN.
  • the data value for the own station of the signal is compared with the unique identification information of the own station. If the data value of the signal matches the unique identification information of the own station, the unique identification information data is output from the output terminal LEA to the communication light projecting unit 23 and passed through the communication light projecting unit 23. To send the projected signal as a serial signal. Further, the light emitting diode of the notification response display unit 25 is turned on via the output terminal OUTA, and the notification response display unit 25 is caused to emit light. That is, a notification response to the response request signal including the unique identification information of the own station is made.
  • the MCU 31 of the slave station output terminal 3 has a parallel output terminal OUTS that outputs a signal for controlling the actuator 1. Then, a signal corresponding to the control data obtained at the timing of the transmission clock signal whose address count value matches the own station address is output to the actuator 1 via the parallel output terminal OUTS.
  • the actuator 1 has an abnormality such as disconnection
  • the transistor TR is turned on via the output terminal OUT at the timing of the transmission clock signal whose address count value matches the local station address, and the common data signal lines DP and DN are connected. An abnormal signal is sent out.
  • the terminal display 6 includes a transmission / reception unit 61, an input unit 62, and a display unit 63, and also includes an MCU 65 that performs these controls.
  • these structures can be comprised by well-known components and circuits, detailed description is abbreviate
  • the terminal display 6 shown in FIGS. 5 and 6 In order to perform individual identification of the slave station terminals 2 and 3 using the terminal display 6 shown in FIGS. 5 and 6, first, from the input unit 62 of the terminal display 6, The unique identification information for specifying 3 is input.
  • the response request signal including the unique identification information is transmitted from the transmission unit of the transmission / reception unit 61.
  • the transmission / reception unit 61 of the terminal display 6 is directed to an arbitrary slave terminal 2 or 3
  • the notification response display unit 25 of the terminal is turned on and the terminal display
  • the unique identification information of the terminal is displayed on the display unit 63 of the device 6.
  • the notification response display unit 25 of the terminal is not lit and the display unit 63 is not displayed. Therefore, the terminal that is the identification target can be identified by repeating the same operation until the transmitter / receiver 61 is directed to any other slave terminal 2 or 3 and a notification response is received.
  • the unique identification information input to the terminal display 6 may be any information stored in the ROMs of the MCUs 21 and 31 of the slave station terminals 2 and 3 such as the address, model, and specifications.
  • a different address is always assigned to each of the slave station terminals 2 and 3, so this address is assigned to the unique identification information.
  • Any slave station 2 or 3 can be specified as In the system construction work, if the same address is set incorrectly for multiple terminals, there is an error in the address setting because the multiple terminals respond to notifications where only one terminal originally responds. It turns out.
  • the response request signal is transmitted from the terminal display 6, but it may be transmitted from the master station 4.
  • a response request signal data area may be provided in the transmission clock signal, and a data value of desired unique identification information may be superimposed on this area as a response request signal.
  • the MCU 21 or 31 determines whether or not the data value superimposed in the response request signal data area matches the unique identification information of the own station. Will emit light.
  • the MCU 21 or 31 constitutes an application request signal receiving means in the present invention.
  • the terminal responds to the response request signal by turning on the notification response display unit 25.
  • the notification response method is not limited and any terminal can be recognized. For example, it is good also as what emits the beep of an electronic circuit.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
  • Programmable Controllers (AREA)

Abstract

[Problem] To provide a slave station terminal capable of readily performing solid-state identification without the expenditure of time or labor. [Solution] A first slave station terminal according to the present invention is connected to a shared data signal line and transmits signals with a master station connected to the shared data signal line, and gives a reporting response to a response request signal that includes identification information specific to the first slave terminal. A second slave station terminal according to the present invention is connected to a shared data signal line and transmits signals with a master station connected to the shared data signal line, and, in response to a response request signal which includes identification information specific to the second slave station terminal, transfers a report response data signal that includes the information specific to the second slave station terminal to a separate terminal display device.

Description

子局ターミナルSlave station terminal
　本発明は、共通のデータ信号線を介して、親局との間で制御・監視信号の伝送を行なう子局ターミナルに関するものである。なお、共通のデータ信号線とは、子局ターミナルの複数が並列に接続され、更に親局がそれら複数の子局と並列に接続される信号線である。 The present invention relates to a slave station terminal that transmits control and monitoring signals to and from a master station via a common data signal line. The common data signal line is a signal line in which a plurality of slave station terminals are connected in parallel, and a master station is connected in parallel to the plurality of slave stations.
　単一の制御部と複数の被制御装置（制御部の指示に応じて動作する被制御部と制御部に情報を送信するセンサ部とで構成されるもの）を備える制御システムにおいて、配線の数を減らすことは、配線スペースの低減、配線工数の低減、装置製作工期の低減、或いは設備の小型化に繋がり、これによって、設備の信頼性向上、コスト低減などを図ることができる。 In a control system having a single control unit and a plurality of controlled devices (consisting of a controlled unit that operates in response to an instruction from the control unit and a sensor unit that transmits information to the control unit), the number of wires Reduction of wiring leads to a reduction in wiring space, a reduction in wiring man-hours, a reduction in device manufacturing time, or downsizing of equipment, thereby making it possible to improve equipment reliability and reduce costs.
　そこで、上記のような制御システムにおいて配線の数を減らす試みがなされている。具体的には、電源を含むクロック信号の線路に、各クロックに対応する１つ（１ビット）の制御信号やセンサ信号（被制御装置からの入力信号）を重畳する信号伝送方式を採用することで、制御部と被制御装置の間の省配線が実現されている。 Therefore, attempts have been made to reduce the number of wires in the control system as described above. Specifically, adopt a signal transmission method in which one (1 bit) control signal or sensor signal (input signal from the controlled device) corresponding to each clock is superimposed on the clock signal line including the power supply. Thus, the wiring saving between the control unit and the controlled device is realized.
　なお、制御部及び被制御装置における入出力信号は、通常、パラレル形式となるため、省配線化には、これらパラレル形式の信号を、シリアル形式の信号に変換する必要がある。そこで、制御部における入出力信号のパラレル／シリアル変換を行なう親局と、被制御装置における入出力信号のパラレル／シリアル変換を行なう子局が配置される。例えば、特開２００２－２７１８７８号公報には、制御部及びデータ信号線に接続される親局と、データ信号線及び対応する被制御装置に接続される複数の子局を備えた制御・監視信号伝送システムが開示されている。 In addition, since the input / output signals in the control unit and the controlled device are usually in parallel format, it is necessary to convert these parallel format signals into serial format signals in order to reduce wiring. Therefore, a master station that performs parallel / serial conversion of input / output signals in the control unit and a slave station that performs parallel / serial conversion of input / output signals in the controlled device are arranged. For example, Japanese Patent Laid-Open No. 2002-271878 discloses a control / monitoring signal including a master station connected to a control unit and a data signal line, and a plurality of slave stations connected to the data signal line and a corresponding controlled device. A transmission system is disclosed.
特開２００２‐２７１８７８号公報JP 2002-271878 A
　上記のような制御・監視信号伝送システムでは、多数の子局ターミナルが設置されるが、それら子局ターミナルは、薄暗い現場や狭い現場に設置されることもあり、子局ターミナルに表示された情報の確認作業が難しくなる場合があった。そして、複数の子局ターミナルの各個体の識別が難しくなり、システムの不具合発生時において問題となっている子局ターミナルの特定や、システム構築時における子局ターミナルの配置状態の適否確認に手間や時間を要していた。 In the control / monitoring signal transmission system as described above, a large number of slave station terminals are installed. However, these slave station terminals may be installed in dimly lit or narrow sites. Confirmation work may be difficult. In addition, it becomes difficult to identify each individual terminal of multiple slave station terminals. It took time.
　また、近年では、制御・監視信号伝送システムが様々な装置に用いられるようになっており、子局ターミナルの形状にも、様々な要求が課せられるようになっている。そして、そのような要求の一つとして小型化を挙げられる。例えば、アクチュエータの制御において、シリンダ内のロッド位置の把握に、センサを備えた子局ターミナルを使用することが考えられるが、この場合、アクチュエータの移動の妨げとならないよう、子局ターミナルを小型化する必要がある。 In recent years, control / monitor signal transmission systems are used in various devices, and various requirements are imposed on the shape of the slave station terminal. One such requirement is downsizing. For example, in actuator control, it is conceivable to use a slave station terminal equipped with a sensor to grasp the rod position in the cylinder. In this case, the slave station terminal is downsized so as not to hinder the movement of the actuator. There is a need to.
　しかしながら、子局ターミナルを小型化すると、その表面積も当然小さくなるため、その表面を情報表示（型式表示、仕様表示など）用として使用することができなくなるという問題があった。そして、複数の子局ターミナルの各個体識別が難しくなることから、既述の場合と同様に、システムの不具合発生時において問題となっている子局ターミナルの特定や、システム構築時における子局ターミナルの配置状態の適否確認に手間や時間を要することになる。 However, when the slave station terminal is reduced in size, the surface area is naturally reduced, so that the surface cannot be used for information display (model display, specification display, etc.). Since individual identification of multiple slave station terminals becomes difficult, as in the case described above, identification of the slave station terminal that is a problem when a system malfunction occurs, and the slave station terminal at the time of system construction It takes time and effort to confirm the suitability of the arrangement state.
　そこで、本発明は、手間や時間をかけることなく、固体識別を容易に行なうことができる子局ターミナルを提供することを目的とする。 Therefore, an object of the present invention is to provide a slave station terminal that can easily perform solid identification without taking time and effort.
　本発明に係る第一の子局ターミナルは、共通のデータ信号線に接続され、前記共通のデータ信号線に接続されている親局と信号の伝送を行うもので、自局の固有識別情報を含む応答要請信号への報知応答をする。 The first slave station terminal according to the present invention is connected to a common data signal line and transmits signals with the master station connected to the common data signal line. A notification response to the response request signal is included.
　前記親局から送出される前記応答要請信号および／または別体の端末表示器から発せられる前記応答要請信号の受信手段を備えるものであってもよい。 It may be provided with means for receiving the response request signal transmitted from the master station and / or the response request signal transmitted from a separate terminal display.
　前記固有識別情報を含む報知応答データ信号を、前記親局および／または前記端末表示器に引き渡すものであってもよい。 The broadcast response data signal including the unique identification information may be delivered to the master station and / or the terminal display.
　本発明に係る第二の子局ターミナルは、共通のデータ信号線に接続され、前記共通のデータ信号線に接続されている親局と信号の伝送を行うもので、自局の固有識別情報を含む応答要請信号に対し、前記固有識別情報を含む報知応答データ信号を、別体の端末表示器に引き渡す。 The second slave station terminal according to the present invention is connected to a common data signal line and transmits signals to and from the master station connected to the common data signal line. In response to the response request signal, the broadcast response data signal including the unique identification information is delivered to a separate terminal display.
　前記親局から送出される前記応答要請信号および／または前記端末表示器から発せられる前記応答要請信号の受信手段を備えるものであってもよい。 It may comprise means for receiving the response request signal transmitted from the master station and / or the response request signal transmitted from the terminal display.
　本発明によれば、親局と信号の伝送を行なう子局ターミナルが、自局の固有識別情報を含む応答要請信号に対し直接応答するため、子局ターミナルが設置された現場で、報知応答の有無を利用して複数の子局ターミナルの各個体を容易に識別することが可能となる。 According to the present invention, the slave station terminal that transmits a signal to the master station responds directly to the response request signal including the unique identification information of the local station. It becomes possible to easily identify each individual of a plurality of slave station terminals using the presence or absence.
　応答要請信号は親局から送出されるものであってもよく、また、別体の端末表示器から発せられるものであってもよいが、いずれの場合であっても、その応答要請信号の受信手段を備えることが必要となる。なお、応答要請信号を別体の端末表示器から発せられるものとすれば、親局に依存することなく、子局ターミナルが設置された現場の操作のみで、子局ターミナルの報知応答の有無を確認でき、識別作業をより容易に行なうことができる。 The response request signal may be transmitted from the master station or may be transmitted from a separate terminal display. In either case, the response request signal is received. It is necessary to provide means. If a response request signal can be issued from a separate terminal display unit, the presence / absence of the slave station terminal's notification response can be determined by operating only at the site where the slave station terminal is installed, without depending on the master station. It can be confirmed and identification work can be performed more easily.
　報知応答の形式に制限は無く、状況に応じて容易に認識できるものとすればよいが、子局ターミナルが自局で備える表示手段による表示や、電子回路による発信音とすれば、薄暗い現場でも、容易に識別することができる。また、固有識別情報を含む報知応答データ信号を別体の端末表示器に引き渡すものとすれば、端末表示器を手元に置いた状態で、極めて容易に識別作業を行なうことができる。しかも、表示内容を様々な形式に、例えば、文字や数字の表示とすることも可能となる。なお、子局ターミナルから端末表示器への報知応答データ信号の引き渡しは、光や電磁波を利用した非接触で行なってもよく、コネクタケーブルなどを利用した有接触で行なってもよい。 There is no restriction on the format of the notification response, and it should be easy to recognize depending on the situation, but if it is displayed by the display means provided in the local station terminal or the emitted sound by the electronic circuit, it can be used even in dimly lit sites Can be easily identified. Further, if the notification response data signal including the unique identification information is delivered to a separate terminal display, the identification work can be performed very easily with the terminal display placed at hand. Moreover, the display content can be displayed in various formats, for example, letters and numbers. The notification response data signal from the slave station terminal to the terminal display may be delivered in a non-contact manner using light or electromagnetic waves, or in a contact manner using a connector cable or the like.
　固有識別情報は、識別の目的に応じて決めることができるが、例えば、子局ターミナルの自局の機器仕様とすれば、所望の仕様の子局ターミナルを識別することができる。また、子局ターミナルの各々に割り振られたアドレスとすれば、特定のアドレスが付与されている子局ターミナルを識別することができ、アドレス設定の間違いや、設置位置の間違いを確認することができる。 The unique identification information can be determined according to the purpose of identification. For example, if the device specifications of the slave station terminal are used, the slave station terminal having a desired specification can be identified. In addition, if the address assigned to each of the slave station terminals is used, the slave station terminal to which a specific address is assigned can be identified, and an incorrect address setting or an incorrect installation position can be confirmed. .
本発明に係る子局ターミナルの実施例である制御・監視信号伝送システムの構成図である。It is a block diagram of the control and monitoring signal transmission system which is an Example of the slave station terminal according to the present invention. 伝送クロック信号のタイムチャートである。It is a time chart of a transmission clock signal. 子局入力ターミナルのブロック図である。It is a block diagram of a slave station input terminal. 子局出力ターミナルのブロック図である。It is a block diagram of a slave station output terminal. 端末表示器の外観を示す正面図である。It is a front view which shows the external appearance of a terminal display. 端末表示器のブロック図である。It is a block diagram of a terminal display.
　図１～６を参照しながら、本発明に係る子局ターミナルの実施例として、同子局ターミナルを使用した制御・監視信号伝送システムについて説明する。
　この制御・監視信号伝送システムは、アクチュエータの制御に利用されるもので、複数のアクチュエータ１と、これらアクチュエータ１の制御部５を備える。制御部５には親局４が接続され、更に、親局４には共通のデータ信号線ＤＰ、ＤＮ（以下、共通データ信号線ＤＰ、ＤＮとする）が接続されている。一方、複数のアクチュエータ１の各々には対応する子局出力ターミナル３が設けられ、これら子局出力ターミナル３の各々が共通データ信号線ＤＰ、ＤＮに接続されている。また、アクチュエータ１のシリンダ内ロッドの位置を検出する子局入力ターミナル２も、共通データ信号線ＤＰ、ＤＮに接続されている。これら子局入力ターミナル２と子局出力ターミナル３が、本発明の子局ターミナルに相当するもので、以下の説明ではこれらをまとめて子局ターミナル２、３と称することがある。 With reference to FIGS. 1 to 6, a control / monitor signal transmission system using the slave station terminal will be described as an embodiment of the slave station terminal according to the present invention.
This control / monitor signal transmission system is used for actuator control, and includes a plurality of actuators 1 and a control unit 5 for these actuators 1. A parent station 4 is connected to the control unit 5, and common data signal lines DP and DN (hereinafter referred to as common data signal lines DP and DN) are connected to the parent station 4. On the other hand, each of the plurality of actuators 1 is provided with a corresponding slave station output terminal 3, and each of the slave station output terminals 3 is connected to the common data signal lines DP and DN. A slave station input terminal 2 that detects the position of the cylinder rod of the actuator 1 is also connected to the common data signal lines DP and DN. These slave station input terminal 2 and slave station output terminal 3 correspond to the slave station terminals of the present invention. In the following description, these may be collectively referred to as slave station terminals 2 and 3.
　制御部５は、例えばプログラマブルコントローラ、コンピュータ等であり、制御データ５３を送出する出力ユニット５１と、アクチュエータ１のシリンダ内ロッドの位置に応じた監視データ５４を受け取る入力ユニット５２を有する。そして、これら出力ユニット５１と入力ユニット５２が親局４に接続されている。 The control unit 5 is, for example, a programmable controller, a computer, and the like, and includes an output unit 51 that transmits control data 53 and an input unit 52 that receives monitoring data 54 according to the position of the cylinder rod of the actuator 1. The output unit 51 and the input unit 52 are connected to the master station 4.
　親局４は、子局入力ターミナル２から送出された監視信号の監視データ５４を制御部５に引き渡すとともに、所定のタイミング信号に基づき一連のパルス状信号を生成し、この信号を共通データ信号線ＤＰ、ＤＮに送出している。以下、共通データ信号線ＤＰ、ＤＮに送出される一連のパルス状信号を、伝送クロック信号というものとする。 The master station 4 delivers the monitoring data 54 of the monitoring signal sent from the slave station input terminal 2 to the control unit 5 and generates a series of pulse signals based on a predetermined timing signal. It is sent to DP and DN. Hereinafter, a series of pulse signals transmitted to the common data signal lines DP and DN are referred to as transmission clock signals.
　伝送クロック信号をなす一連のパルス状信号は、図２に示すように、信号の始まりを示すスタート信号（ＳＴＢ）に続けられており、各パルスの周期にはアドレスが割り振られている。そして、所定数の周期が子局ターミナル２、３のいずれかに割り当てられている。例えば、図２に示す例では、スタート信号に続く２つの周期が子局入力ターミナルＡに割り当てられており、それに続く２つの周期が異なる子局入力ターミナルＢに割り当てられている。そして、図示は省略するが、以降の各周期も同様に、子局ターミナル２、３のいずれかに割り当てられている。なお、各パルスの周期に割り振られたアドレスは、その周期が割り当てられた子局ターミナル２、３のアドレスとなる。例えば、図２に示す例では、子局入力ターミナルＡの先頭アドレスは＃１となり、子局入力ターミナルＢの先頭アドレスは＃３となる。 As shown in FIG. 2, a series of pulse signals constituting the transmission clock signal is followed by a start signal (STB) indicating the start of the signal, and an address is assigned to the period of each pulse. A predetermined number of cycles are assigned to one of the slave station terminals 2 and 3. For example, in the example shown in FIG. 2, two cycles following the start signal are assigned to the slave station input terminal A, and the following two cycles are assigned to different slave station input terminals B. And although illustration is abbreviate | omitted, each subsequent period is similarly assigned to either of the slave station terminals 2 and 3. The address assigned to the period of each pulse is the address of the slave station terminals 2 and 3 to which the period is assigned. For example, in the example shown in FIG. 2, the head address of the slave station input terminal A is # 1, and the head address of the slave station input terminal B is # 3.
　子局入力ターミナル２は、アクチュエータ１のシリンダ内ロッドの所定の位置に組み込まれた磁石の磁気量を検出する磁気検出部２２と、自局の固有識別情報を表示する別体の端末表示器６との通信を行う通信用投光部２３および通信用受光部２４と、後述の応答要求信号に対し報知応答する報知応答用表示部２５を備える。また、内部回路としてマイクロコンピュータ・コントロール・ユニットであるＭＣＵ２１を備え、磁気検出部２２と通信用受光部２４が、ＭＣＵ２１の入力端子ＩＮＳ、ＩＮＡにそれぞれ接続され、通信用投光部２３と報知応答用表示部２５が、ＭＣＵ２１の出力端子ＬＥＡ、ＯＵＴＡにそれぞれ接続されている。 The slave station input terminal 2 includes a magnetic detection unit 22 that detects the amount of magnetism of a magnet built in a predetermined position of the rod in the cylinder of the actuator 1, and a separate terminal display 6 that displays unique identification information of the local station. A communication light projecting unit 23 and a communication light receiving unit 24, and a notification response display unit 25 that performs a notification response to a response request signal described later. Moreover, it has MCU21 which is a microcomputer control unit as an internal circuit, the magnetic detection part 22 and the light reception part 24 for communication are each connected to the input terminals INS and INA of MCU21, and the light projection part 23 for communication and alert response The display unit 25 is connected to the output terminals LEA and OUTA of the MCU 21, respectively.
　ＭＣＵ２１は、図３に示すように、ＣＰＵ、ＲＡＭ、ＲＯＭを備え、ＲＯＭには検出処理や端末表示器６との通信に必要なプログラムと、自局アドレス情報、型式情報、仕様情報等の固有識別情報が記憶されている。また、ＲＡＭには、検出データが記憶される。そして、ＣＰＵの演算機能を用いて、検出に必要な情報を得るための処理が行なわれるものとなっている。なお、ＭＣＵ２１は通信用受光部２４とともに、本発明における、応答要請信号の受信手段を構成するものとなる。 As shown in FIG. 3, the MCU 21 includes a CPU, a RAM, and a ROM. The ROM includes programs necessary for detection processing and communication with the terminal display 6, and unique addresses such as local address information, model information, and specification information. Identification information is stored. Further, the detection data is stored in the RAM. Then, processing for obtaining information necessary for detection is performed using the arithmetic function of the CPU. The MCU 21 together with the communication light receiving unit 24 constitutes a response request signal receiving means in the present invention.
　ＭＣＵ２１における処理を説明すると、まず、入力端子ＣＫから入力される、共通データ信号線ＤＰ、ＤＮの伝送クロック信号の１周期毎に割り当てられたアドレスをカウントする。そして、ＭＣＵ２１はそのカウントにより得られたデータ値（以下アドレスカウント値という）が予め記憶されている自局アドレスと一致すると、伝送クロック信号のタイミングに応じて、ＲＡＭに保持している検出データに相応する信号を自局の監視データ信号の重畳タイミングとして、出力端子ＯＵＴからトランジスタＴＲのベースへ出力する。具体的には、検出データが”ｏｎ”（シリンダ内ロットが所定の位置にあることを示すもの）であれば、トランジスタＴＲがｏｎとなり、電流が流れることで電圧が降下し、電圧レベルが０Ｖとなり、その信号が共通データ信号線ＤＰ、ＤＮ上に伝送される。 The processing in the MCU 21 will be described. First, the addresses assigned for each cycle of the transmission clock signals of the common data signal lines DP and DN input from the input terminal CK are counted. When the data value obtained by the count (hereinafter referred to as an address count value) matches the pre-stored address of the MCU 21, the MCU 21 changes the detected data held in the RAM according to the timing of the transmission clock signal. A corresponding signal is output from the output terminal OUT to the base of the transistor TR as the superimposition timing of the monitoring data signal of the local station. Specifically, if the detection data is “on” (indicating that the in-cylinder lot is in a predetermined position), the transistor TR is turned on, the current flows, the voltage drops, and the voltage level is 0V. The signal is transmitted on the common data signal lines DP and DN.
　一方、通信用受光部２４から入力端子ＩＮＡを介して信号の入力がある場合、その信号の自局向けデータ値を自局の固有識別情報と比較する。そして、その信号のデータ値が自局の固有識別情報と一致するものであれば、固有識別情報のデータを出力端子ＬＥＡから通信用投光部２３に出力し、通信用投光部２３を介して投光信号を直列信号として発信する。また、出力端子ＯＵＴＡを介し報知応答用表示部２５の発光ダイオードをｏｎとし、報知応答用表示部２５を発光させる。すなわち、自局の固有識別情報を含む応答要請信号への報知応答をする。 On the other hand, when a signal is input from the communication light receiving unit 24 via the input terminal INA, the data value for the own station of the signal is compared with the unique identification information of the own station. If the data value of the signal matches the unique identification information of the own station, the unique identification information data is output from the output terminal LEA to the communication light projecting unit 23 and passed through the communication light projecting unit 23. To send the projected signal as a serial signal. Further, the light emitting diode of the notification response display unit 25 is turned on via the output terminal OUTA, and the notification response display unit 25 is caused to emit light. That is, a notification response to the response request signal including the unique identification information of the own station is made.
　図４に示す子局出力ターミナル３は、磁気検出部２２を備えていないことを除き、その基本構成はほぼ子局入力ターミナル２と同様であるため、子局入力ターミナル２と異なる部分についてのみ説明する。
　子局出力ターミナル３のＭＣＵ３１は、アクチュエータ１の制御を行なうための信号を出力するパラレル出力端子ＯＵＴＳを有している。そして、アドレスカウント値が自局アドレスと一致する伝送クロック信号のタイミングで得られる制御データに応じた信号を、パラレル出力端子ＯＵＴＳを介してアクチュエータ１に出力する。また、アクチュエータ１に断線等の異常がある場合は、アドレスカウント値が自局アドレスと一致する伝送クロック信号のタイミングで出力端子ＯＵＴを介しトランジスタＴＲをｏｎとし、共通データ信号線ＤＰ、ＤＮ上に異常信号を送出する。 Since the basic configuration of the slave station output terminal 3 shown in FIG. 4 is substantially the same as that of the slave station input terminal 2 except that the magnetic detector 22 is not provided, only the parts different from the slave station input terminal 2 will be described. To do.
The MCU 31 of the slave station output terminal 3 has a parallel output terminal OUTS that outputs a signal for controlling the actuator 1. Then, a signal corresponding to the control data obtained at the timing of the transmission clock signal whose address count value matches the own station address is output to the actuator 1 via the parallel output terminal OUTS. When the actuator 1 has an abnormality such as disconnection, the transistor TR is turned on via the output terminal OUT at the timing of the transmission clock signal whose address count value matches the local station address, and the common data signal lines DP and DN are connected. An abnormal signal is sent out.
　端末表示器６は、送受信部６１、入力部６２、表示部６３を備え、また、これらの制御を行なうＭＣＵ６５を有している。なお、これらの構成は、いずれも公知の部品や回路で構成することができるため詳細な説明は省略し、以下、この端末表示器６を使用した子局ターミナル２、３の固体識別方法について説明する。 The terminal display 6 includes a transmission / reception unit 61, an input unit 62, and a display unit 63, and also includes an MCU 65 that performs these controls. In addition, since these structures can be comprised by well-known components and circuits, detailed description is abbreviate | omitted and hereafter, the solid identification method of the slave station terminals 2 and 3 using this terminal display 6 is demonstrated. To do.
　図５、図６に示す端末表示器６を使用して子局ターミナル２、３の個体識別を行なうには、まず、端末表示器６の入力部６２から、識別対象となる子局ターミナル２、３を特定するための固有識別情報を入力する。そして、その固有識別情報を含む応答要請信号が送受信部６１の送信部から送信される状態とする。続いて、端末表示器６の送受信部６１を、任意の子局ターミナル２または３に向けると、そのターミナルが識別対象であれば、そのターミナルの報知応答用表示部２５が点灯するとともに、端末表示器６の表示部６３に、そのターミナルの固有識別情報が表示される。一方、識別対象でなければ、そのターミナルの報知応答用表示部２５は点灯せず、表示部６３の表示も無い。そこで、送受信部６１を任意の別の子局ターミナル２、３に向け、報知応答があるまで、同様の作業を繰り返すことにより、識別対象となっているターミナルを特定することができる。 In order to perform individual identification of the slave station terminals 2 and 3 using the terminal display 6 shown in FIGS. 5 and 6, first, from the input unit 62 of the terminal display 6, The unique identification information for specifying 3 is input. The response request signal including the unique identification information is transmitted from the transmission unit of the transmission / reception unit 61. Subsequently, when the transmission / reception unit 61 of the terminal display 6 is directed to an arbitrary slave terminal 2 or 3, if the terminal is an identification target, the notification response display unit 25 of the terminal is turned on and the terminal display The unique identification information of the terminal is displayed on the display unit 63 of the device 6. On the other hand, if it is not an identification target, the notification response display unit 25 of the terminal is not lit and the display unit 63 is not displayed. Therefore, the terminal that is the identification target can be identified by repeating the same operation until the transmitter / receiver 61 is directed to any other slave terminal 2 or 3 and a notification response is received.
　端末表示器６に入力する固有識別情報は、アドレス、型式、仕様など子局ターミナル２、３のＭＣＵ２１、３１のＲＯＭに記憶されているいずれの情報でもよい。例えば、この実施例の伝送方式においては、親局４との間で信号を伝送するために、子局ターミナル２、３の各々には必ず異なるアドレスが割り当てられることから、このアドレスを固有識別情報として任意の子局ターミナル２、３を特定することができる。なお、システム構築作業において、複数のターミナルに対し同じアドレスが誤って設定された場合、本来は一つのターミナルのみが報知応答するところを複数のターミナルが報知応答するため、アドレスの設定に誤りのあることが判明する。 The unique identification information input to the terminal display 6 may be any information stored in the ROMs of the MCUs 21 and 31 of the slave station terminals 2 and 3 such as the address, model, and specifications. For example, in the transmission system of this embodiment, in order to transmit a signal to and from the master station 4, a different address is always assigned to each of the slave station terminals 2 and 3, so this address is assigned to the unique identification information. Any slave station 2 or 3 can be specified as In the system construction work, if the same address is set incorrectly for multiple terminals, there is an error in the address setting because the multiple terminals respond to notifications where only one terminal originally responds. It turns out.
　また、型式や仕様を固有識別情報として入力すれば、それら型式や仕様に合致する全てのターミナルが報知応答することになるが、この場合は、適正な型式や仕様のターミナルが、適正に配置されているかどうかなどの確認を行なうことができる。 In addition, if the model and specifications are entered as unique identification information, all terminals that match the model and specifications will respond to notifications. In this case, terminals of the appropriate model and specifications are properly arranged. You can check whether or not
　なお、この実施例において、応答要請信号は端末表示器６から送信されるものとなっているが、これを親局４から送出されるものとしてもよい。その場合、伝送クロック信号に、応答要請信号データ領域を設け、この領域に応答要請信号として、所望の固有識別情報のデータ値を重畳してもよい。子局ターミナル２、３では、応答要請信号データ領域に重畳されたデータ値が自局の固有識別情報と一致するかどうかの判断をＭＣＵ２１または３１において行い、一致するときに報知応答用表示部２５を発光させることになる。なお、この場合、ＭＣＵ２１または３１が本発明における応用要請信号の受信手段を構成するものとなる。 In this embodiment, the response request signal is transmitted from the terminal display 6, but it may be transmitted from the master station 4. In this case, a response request signal data area may be provided in the transmission clock signal, and a data value of desired unique identification information may be superimposed on this area as a response request signal. In the slave station terminals 2 and 3, the MCU 21 or 31 determines whether or not the data value superimposed in the response request signal data area matches the unique identification information of the own station. Will emit light. In this case, the MCU 21 or 31 constitutes an application request signal receiving means in the present invention.
　更に、この実施例において、ターミナルは応答要請信号に対し報知応答用表示部２５の点灯により報知応答しているが、その報知応答方法に制限はなく、作業者が認識できるものであればよい。例えば、電子回路の発信音を発するものとしてもよい。 Furthermore, in this embodiment, the terminal responds to the response request signal by turning on the notification response display unit 25. However, the notification response method is not limited and any terminal can be recognized. For example, it is good also as what emits the beep of an electronic circuit.
１　　アクチュエータ
２　　子局入力ターミナル
３　　子局出力ターミナル
４　　親局
５　　制御部
６　　端末表示器
２１、３１、６５　ＭＣＵ
２２　磁気検出部
２３　通信用投光部
２４　通信用受光部
２５　報知応答用表示部
５１　出力ユニット
５２　入力ユニット
５３　制御データ
５４　監視データ
６１　送受信部
６２　入力部
６３　表示部
　 1 Actuator 2 Slave station input terminal 3 Slave station output terminal 4 Master station 5 Control unit 6 Terminal display 21, 31, 65 MCU
22 Magnetic detection unit 23 Communication light projecting unit 24 Communication light receiving unit 25 Notification response display unit 51 Output unit 52 Input unit 53 Control data 54 Monitoring data 61 Transmission / reception unit 62 Input unit 63 Display unit

Claims (5)

  1. 　共通のデータ信号線に接続され、前記共通のデータ信号線に接続されている親局と信号の伝送を行うもので、自局の固有識別情報を含む応答要請信号への報知応答をすることを特徴とする子局ターミナル。 It is connected to a common data signal line and transmits a signal to a master station connected to the common data signal line, and makes a notification response to a response request signal including unique identification information of the own station. Characteristic slave station terminal.
  2. 　前記親局から送出される前記応答要請信号および／または別体の端末表示器から発せられる前記応答要請信号の受信手段を備える請求項１に記載の子局ターミナル。 The slave station terminal according to claim 1, further comprising means for receiving the response request signal transmitted from the master station and / or the response request signal transmitted from a separate terminal display.
  3. 　前記固有識別情報を含む報知応答データ信号を、前記親局および／または前記端末表示器に引き渡す請求項２に記載の子局ターミナル。 The slave station terminal according to claim 2, wherein the broadcast response data signal including the unique identification information is delivered to the master station and / or the terminal display.
  4. 　共通のデータ信号線に接続され、前記共通のデータ信号線に接続されている親局と信号の伝送を行うもので、自局の固有識別情報を含む応答要請信号に対し、前記固有識別情報を含む報知応答データ信号を、別体の端末表示器に引き渡すことを特徴とする子局ターミナル。 It is connected to a common data signal line and transmits a signal to a master station connected to the common data signal line. The response signal including the unique identification information of the own station is transmitted with the unique identification information. A slave station terminal which delivers a broadcast response data signal including the terminal to a separate terminal display.
  5. 　前記親局から送出される前記応答要請信号および／または前記端末表示器から発せられる前記応答要請信号の受信手段を備える請求項４に記載の子局ターミナル。
    　
    　     5. The slave station terminal according to claim 4, further comprising receiving means for receiving the response request signal transmitted from the master station and / or the response request signal transmitted from the terminal display.

PCT/JP2010/067901 2010-10-12 2010-10-12 Slave station terminal WO2012049738A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015197834A (en) * 2014-04-02 2015-11-09 アズビル株式会社 Sensor wiring confirmation system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03276393A (en) * 1990-03-27 1991-12-06 Matsushita Electric Works Ltd Fire sensing system
JPH06169491A (en) * 1992-11-30 1994-06-14 Mitsubishi Electric Corp Remote control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03276393A (en) * 1990-03-27 1991-12-06 Matsushita Electric Works Ltd Fire sensing system
JPH06169491A (en) * 1992-11-30 1994-06-14 Mitsubishi Electric Corp Remote control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015197834A (en) * 2014-04-02 2015-11-09 アズビル株式会社 Sensor wiring confirmation system and method

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