JP6764688B2 - How to update the controller - Google Patents

How to update the controller Download PDF

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JP6764688B2
JP6764688B2 JP2016099736A JP2016099736A JP6764688B2 JP 6764688 B2 JP6764688 B2 JP 6764688B2 JP 2016099736 A JP2016099736 A JP 2016099736A JP 2016099736 A JP2016099736 A JP 2016099736A JP 6764688 B2 JP6764688 B2 JP 6764688B2
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communication
control device
control
connector
conversion
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JP2017207911A (en
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剛史 遠藤
剛史 遠藤
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Nippon Steel Texeng Co Ltd
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Description

本発明は、制御システムにおける制御装置の更新方法に関する。 The present invention relates to a method of updating the control device in the control system.

例えば製鉄所において、制御装置の制御下、生産設備（生産設備そのものや、生産設備に備えられたセンサ類を含む）からのデータ収集、生産設備の監視や制御等を行う制御システムが構築される。特許文献１には、プロセスコンピュータが入出力装置を介して外部機器群に接続される構成が開示されている。 For example, in a steelworks, a control system is constructed that collects data from production equipment (including the production equipment itself and sensors installed in the production equipment) and monitors and controls the production equipment under the control of the control device. .. Patent Document 1 discloses a configuration in which a process computer is connected to an external device group via an input / output device.

この種の制御システムでは、図６に示すように、制御装置１００と複数の生産設備３００との間に変換装置２００を介在させて、変換装置２００により、制御装置１００と各生産設備３００との間でやり取りする信号を所定の信号形式に変換する。変換装置２００は、制御装置１００と接続するための所定の接続線（通信用ケーブル）５００をつなぐことのできるコネクタ２０１を備える。また、変換装置２００は、複数の生産設備３００にそれぞれ接続線（通信用ケーブル）６００を介して接続し、生産設備３００ごとに対応する変換器２０２を備える。なお、図６では制御装置１００に１台の変換装置２００が接続するように図示するが、制御装置１００が複数のコネクタを備え、複数台の変換装置２００が接続する構成もありえる。 In this type of control system, as shown in FIG. 6, a conversion device 200 is interposed between the control device 100 and the plurality of production facilities 300, and the conversion device 200 causes the control device 100 and each production facility 300 to be connected to each other. Converts the signals exchanged between them into a predetermined signal format. The conversion device 200 includes a connector 201 capable of connecting a predetermined connection line (communication cable) 500 for connecting to the control device 100. Further, the converter 200 is connected to each of the plurality of production facilities 300 via a connection line (communication cable) 600, and includes a converter 202 corresponding to each production facility 300. Although it is shown in FIG. 6 that one conversion device 200 is connected to the control device 100, the control device 100 may have a plurality of connectors and a plurality of conversion devices 200 may be connected to each other.

特開平８−３２８６０７号公報Japanese Patent Application Laid-Open No. 8-328607

このような制御システムにおいて、制御装置を更新する、すなわち既設の制御装置１００を新たな制御装置１００Ｎに置き換える必要が生じることがある。
この場合に、新たな制御装置１００Ｎが行う通信を、所定の規格による通信方式に変更したいという要望がある。その一方で、変換装置２００は、既設の制御装置１００と接続するための接続線５００をつなぐコネクタ２０１を備えるだけであり、所定の規格による通信方式に対応したものとはなっていない。
そのため、図７に示すように、新たな制御装置１００Ｎに合わせて、既設の変換装置２００も新たな変換装置２００Ｎに置き換える必要がある。新たな変換装置２００Ｎは、所定の規格による通信方式で通信を行う通信部２０３を備える。また、新たな変換装置２００Ｎは、複数の生産設備３００にそれぞれ接続線６００を介して接続し、生産設備３００ごとに対応する変換器２０４を備える。
しかしながら、制御装置の更新に伴って変換装置まで更新するのでは、大幅にコストアップしてしまう。しかも、既設の変換装置２００と各生産設備３００との接続を解除して、新たな変換装置２００Ｎと各生産設備３００とを接続しおなす必要があり、更新作業に時間がかかるだけでなく、配線間違いのリスクも生じる。 In such a control system, it may be necessary to update the control device, that is, replace the existing control device 100 with a new control device 100N.
In this case, there is a desire to change the communication performed by the new control device 100N to a communication method according to a predetermined standard. On the other hand, the conversion device 200 only includes a connector 201 for connecting a connection line 500 for connecting to the existing control device 100, and does not correspond to a communication method according to a predetermined standard.
Therefore, as shown in FIG. 7, it is necessary to replace the existing conversion device 200 with the new conversion device 200N in accordance with the new control device 100N. The new conversion device 200N includes a communication unit 203 that communicates by a communication method according to a predetermined standard. Further, the new converter 200N is connected to a plurality of production facilities 300 via a connection line 600, and includes a converter 204 corresponding to each production facility 300.
However, if the conversion device is updated along with the update of the control device, the cost will increase significantly. Moreover, it is necessary to disconnect the existing conversion device 200 and each production facility 300 and connect the new conversion device 200N to each production facility 300, which not only takes time for the update work but also wiring. There is also a risk of mistakes.

本発明は、上記のような点に鑑みてなされたものであり、制御装置の更新に際して、コストアップを避けるとともに、更新作業を短時間で、配線間違いのリスクも少なくできるようにすることを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to avoid an increase in cost when updating a control device, to shorten the updating work, and to reduce the risk of wiring mistakes. And.

本発明の制御装置の更新方法は、制御装置と、設備と、前記制御装置と前記設備との間に介在し、前記制御装置と前記設備との間でやり取りする信号を所定の信号形式に変換する変換装置とを備え、前記制御装置と前記変換装置とが所定の接続線で接続する制御システムにおいて、前記制御装置を、所定の規格による通信方式で通信を行う新たな制御装置に置き換えるための制御装置の更新方法であって、前記所定の規格による通信方式で通信を行う通信手段、及び前記所定の接続線をつなぐことのできるコネクタを備え、信号形式の変換は行わない通信装置を設置し、前記制御装置と前記変換装置との接続を解除した上で、前記通信装置の前記コネクタに前記変換装置を前記所定の接続線で接続し、かつ、前記通信装置の前記通信手段と前記新たな制御装置とが前記所定の規格による通信方式で通信を行うように設定することを特徴とする。 The method for updating the control device of the present invention intervenes between the control device, the equipment, the control device and the equipment, and converts a signal exchanged between the control device and the equipment into a predetermined signal format. In a control system that includes a conversion device and connects the control device and the conversion device with a predetermined connection line, the control device is replaced with a new control device that communicates by a communication method according to a predetermined standard. A communication device that is a method of updating a control device and is provided with a communication means that communicates by a communication method according to the predetermined standard and a connector that can connect the predetermined connection line, and does not convert the signal format. After disconnecting the control device and the conversion device, the conversion device is connected to the connector of the communication device by the predetermined connection line, and the communication means of the communication device and the new It is characterized in that the control device is set to communicate by the communication method according to the predetermined standard .

本発明によれば、制御装置の更新に際して、既設の変換装置をそのまま利用できるので、コストアップを避けるとともに、更新作業を短時間で、配線間違いのリスクも少なくすることができる。 According to the present invention, since the existing conversion device can be used as it is when updating the control device, it is possible to avoid an increase in cost, shorten the update work, and reduce the risk of wiring mistakes.

実施形態に係る制御システムの構成を示す図である。It is a figure which shows the structure of the control system which concerns on embodiment. 変換装置の回路構成を示す図である。It is a figure which shows the circuit structure of the conversion apparatus. 通信装置の回路構成を示す図である。It is a figure which shows the circuit structure of a communication device. 通信装置の構成を示す図である。It is a figure which shows the structure of a communication device. 図６の制御システムにおいて制御装置を更新する途中の状態を示す図である。It is a figure which shows the state in the process of updating the control device in the control system of FIG. 制御システムの構成を示す図である。It is a figure which shows the structure of a control system. 図６の制御システムにおいて従来の手法で制御装置を更新した結果の制御システムの構成を示す図である。It is a figure which shows the structure of the control system as a result of updating the control device by the conventional method in the control system of FIG.

以下、添付図面を参照して、本発明の好適な実施形態について説明する。
図１に、実施形態に係る制御システムの構成を示す。なお、図６で説明した構成要素には同一の符号を付して説明する。
１００Ｎは制御装置であり、所定の規格による通信方式で通信を行う通信部１０１を備える。所定の規格による通信方式としては、オープンな産業用ネットワークを利用した通信方式、具体的にはイーサネット（登録商標）やＣＣ−ＬＩＮＫ等が挙げられる。なお、所定の規格による通信方式は、有線による通信でもよいし、無線による通信でもよい。 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows the configuration of the control system according to the embodiment. The components described with reference to FIG. 6 will be described with the same reference numerals.
Reference numeral 100N is a control device, and includes a communication unit 101 that communicates by a communication method according to a predetermined standard. Examples of the communication method according to the predetermined standard include a communication method using an open industrial network, specifically, Ethernet (registered trademark), CC-LINK, and the like. The communication method according to the predetermined standard may be wired communication or wireless communication.

３００は複数の生産設備であり、制御装置１００Ｎの制御下、生産設備３００（生産設備そのものや、生産設備に備えられたセンサ類を含む）からのデータ収集、生産設備の監視や制御等が行われる。 The 300 is a plurality of production facilities, and under the control of the control device 100N, data collection from the production facility 300 (including the production facility itself and the sensors provided in the production facility), monitoring and control of the production facility, etc. are performed. Will be.

２００は変換装置であり、制御装置１００Ｎと複数の生産設備３００との間に介在し、制御装置１００Ｎと各生産設備３００との間でやり取りする信号を所定の信号形式に変換する。変換装置２００は、接続線５００をつなぐコネクタ２０１を備える。また、変換装置２００は、複数の生産設備３００にそれぞれ接続線６００を介して接続し、生産設備３００ごとに対応する変換器２０２を備える。
本実施形態では、変換装置２００が９系統の変換器２０２を備え、９系統の生産設備３００を接続できるが、その数は限定されるものではない。例えば１系統の変換器２０２を備え、１系統の生産設備３００だけを接続できるものでもよい。
なお、図１では、説明の簡素化のため、変換装置２００と各生産設備３００とを１本の接続線６００で接続するように図示するが、変換装置２００と各生産設備３００と複数本の接続線で接続するようにしてもよい。 Reference numeral 200 denotes a conversion device, which is interposed between the control device 100N and the plurality of production facilities 300, and converts a signal exchanged between the control device 100N and each production facility 300 into a predetermined signal format. The conversion device 200 includes a connector 201 for connecting the connection line 500. Further, the converter 200 is connected to each of the plurality of production facilities 300 via a connection line 600, and includes a converter 202 corresponding to each production facility 300.
In the present embodiment, the converter 200 includes nine converters 202 and can connect nine production facilities 300, but the number is not limited. For example, it may be equipped with one system of converter 202 and can connect only one system of production equipment 300.
In FIG. 1, for simplification of the description, the conversion device 200 and each production facility 300 are shown to be connected by one connection line 600, but the conversion device 200, each production facility 300, and a plurality of lines are shown. You may connect with a connection line.

４００は通信装置であり、制御装置１００Ｎとの間で所定の規格による通信方式で通信を行う通信ユニット４０１と、変換装置２００に接続する接続線５００をつなぐコネクタ４０２とを備える。
本実施形態では、通信装置４００に４系統のコネクタ４０２を備え、４台の変換装置２００を接続できるが、その数は限定されるものではない。 Reference numeral 400 denotes a communication device, which includes a communication unit 401 that communicates with the control device 100N by a communication method according to a predetermined standard, and a connector 402 that connects a connection line 500 connected to the conversion device 200.
In the present embodiment, the communication device 400 is provided with four connectors 402, and four conversion devices 200 can be connected, but the number is not limited.

図２に、変換装置２００の回路構成例を示す。変換装置２００内部において、コネクタ２０１に対して複数の変換器２０２が接続する。これにより、制御装置１００Ｎと生産設備３００とが変換器２０２を介してデータのやり取りを行うことができる。 FIG. 2 shows an example of a circuit configuration of the conversion device 200. Inside the converter 200, a plurality of converters 202 are connected to the connector 201. As a result, the control device 100N and the production equipment 300 can exchange data via the converter 202.

図３に、通信装置４００の回路構成例を示す。通信装置４００内部において、通信ユニット４０１に対して複数のコネクタ４０２が接続する。これにより、制御装置１００Ｎと変換装置２００とがデータのやり取りを行うことができる。 FIG. 3 shows an example of a circuit configuration of the communication device 400. Inside the communication device 400, a plurality of connectors 402 are connected to the communication unit 401. As a result, the control device 100N and the conversion device 200 can exchange data.

また、図４に、通信装置４００の構成例を示す。
通信装置４００の装置本体４０３に対して、モジュール化した通信ユニット４０１が交換可能に装着される。通信方式ごとの通信ユニット４０１（例えばイーサネットにより通信を行う通信ユニットやＣＣ−ＬＩＮＫにより通信を行う通信ユニット等）を用意しておけば、制御装置１００Ｎの通信部１０１が行う通信方式に合わせて選択することができる。
同様に、通信装置４００の装置本体４０３に対して、モジュール化したコネクタ４０２が交換可能に装着される。複数系のコネクタ４０２（例えばＡ系、Ｂ系・・・等の各種メーカの変換装置のコネクタ形式）を用意しておけば、変換装置２００に合わせて選択することができる。また、装置本体４０３に、複数系のコネクタ４０２を混在させて装着することも可能である。 Further, FIG. 4 shows a configuration example of the communication device 400.
A modularized communication unit 401 is interchangeably attached to the device main body 403 of the communication device 400. If a communication unit 401 (for example, a communication unit that communicates by Ethernet or a communication unit that communicates by CC-LINK) is prepared for each communication method, it can be selected according to the communication method performed by the communication unit 101 of the control device 100N. can do.
Similarly, the modularized connector 402 is interchangeably attached to the device main body 403 of the communication device 400. If a plurality of connectors 402 (for example, connector types of conversion devices of various manufacturers such as A system, B system, etc.) are prepared, they can be selected according to the conversion device 200. Further, it is also possible to mount a plurality of connectors 402 on the device main body 403 in a mixed manner.

図１に示す制御システムは、図６に示した制御システムにおいて制御装置を更新する、すなわち既設の制御装置１００を新たな制御装置１００Ｎに置き換えることで構築される。
図６に示した制御システムにおいて、まず通信装置４００を設置する（図５を参照）。通信装置４００は、所定の規格による通信方式で通信を行う通信ユニット４０１と、接続線５００をつなぐことのできるコネクタ４０２とを備える。上述のように通信ユニット４０１はモジュール化されており、新たな制御装置１００Ｎの通信部１０１が行う通信方式に合わせて選択した通信ユニット４０１が装置本体４０３に装着されている。また、コネクタ４０２はモジュール化されており、接続線５００（すなわち、変換装置２００のコネクタ２０１）に合わせて選択したコネクタ４０２が装置本体４０３に装着されている。 The control system shown in FIG. 1 is constructed by updating the control device in the control system shown in FIG. 6, that is, replacing the existing control device 100 with a new control device 100N.
In the control system shown in FIG. 6, the communication device 400 is first installed (see FIG. 5). The communication device 400 includes a communication unit 401 that communicates by a communication method according to a predetermined standard, and a connector 402 that can connect a connection line 500. As described above, the communication unit 401 is modularized, and the communication unit 401 selected according to the communication method performed by the communication unit 101 of the new control device 100N is mounted on the device main body 403. Further, the connector 402 is modularized, and the connector 402 selected according to the connection line 500 (that is, the connector 201 of the conversion device 200) is mounted on the device main body 403.

次に、図５に示す状態から、既設の制御装置１００と変換装置２００との接続を解除して、既設の制御装置１００を撤去する。また、新たな制御装置１００Ｎを設置する（図１を参照）。 Next, from the state shown in FIG. 5, the connection between the existing control device 100 and the conversion device 200 is released, and the existing control device 100 is removed. In addition, a new control device 100N is installed (see FIG. 1).

次に、通信装置４００のコネクタ４０２と、変換装置２００のコネクタ２０１とを接続線５００で接続する。また、通信装置４００の通信ユニット４０１と新たな制御装置１００Ｎの通信部１０１とが所定の規格による通信方式で通信を行うように設定する。 Next, the connector 402 of the communication device 400 and the connector 201 of the conversion device 200 are connected by the connection line 500. Further, the communication unit 401 of the communication device 400 and the communication unit 101 of the new control device 100N are set to communicate by a communication method according to a predetermined standard.

以上により、図１に示す制御システムが構築される。このように制御装置の更新に際して、既設の変換装置２００をそのまま利用できる。通信装置４００を新たに設置することになるが、通信装置４００は、変換器２０２を備える変換装置２００と比較すれば簡易な装置であり、通信装置４００を新たに設置するコストは、変換装置２００を新たに設置するコストと比較すれば安価になる。したがって、コストアップを避けるとともに、各生産設備３００との接続の解除／再接続が不要であり、更新作業を短時間で、配線間違いのリスクも少なくすることができる。 As a result, the control system shown in FIG. 1 is constructed. In this way, when updating the control device, the existing conversion device 200 can be used as it is. Although the communication device 400 will be newly installed, the communication device 400 is a simpler device than the conversion device 200 provided with the converter 202, and the cost of newly installing the communication device 400 is the conversion device 200. It is cheaper than the cost of newly installing. Therefore, it is possible to avoid an increase in cost, to eliminate / reconnect the connection with each production facility 300, to perform the update work in a short time, and to reduce the risk of wiring error.

以上、本発明を実施形態と共に説明したが、上記実施形態は本発明を実施するにあたっての具体化の例を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されてはならないものである。すなわち、本発明はその技術思想、又はその主要な特徴から逸脱することなく、様々な形で実施することができる。 Although the present invention has been described above together with the embodiments, the above-described embodiments merely show examples of embodiment of the present invention, and the technical scope of the present invention is interpreted in a limited manner by these. It should not be. That is, the present invention can be implemented in various forms without departing from the technical idea or its main features.

１００、１００Ｎ：制御装置
１０１：通信部
２００：変換装置
２０１：コネクタ
２０２：変換器
３００：生産設備
４００：通信装置
４０１：通信ユニット
４０２：コネクタ
５００：接続線
６００：接続線 100, 100N: Control device 101: Communication unit 200: Conversion device 201: Connector 202: Converter 300: Production equipment 400: Communication device 401: Communication unit 402: Connector 500: Connection line 600: Connection line

Claims (3)

制御装置と、設備と、前記制御装置と前記設備との間に介在し、前記制御装置と前記設備との間でやり取りする信号を所定の信号形式に変換する変換装置とを備え、前記制御装置と前記変換装置とが所定の接続線で接続する制御システムにおいて、前記制御装置を、所定の規格による通信方式で通信を行う新たな制御装置に置き換えるための制御装置の更新方法であって、
前記所定の規格による通信方式で通信を行う通信手段、及び前記所定の接続線をつなぐことのできるコネクタを備え、信号形式の変換は行わない通信装置を設置し、
前記制御装置と前記変換装置との接続を解除した上で、前記通信装置の前記コネクタに前記変換装置を前記所定の接続線で接続し、かつ、前記通信装置の前記通信手段と前記新たな制御装置とが前記所定の規格による通信方式で通信を行うように設定することを特徴とする制御装置の更新方法。 The control device includes a control device, equipment, and a conversion device that is interposed between the control device and the equipment and converts a signal exchanged between the control device and the equipment into a predetermined signal format. A method of updating a control device for replacing the control device with a new control device that communicates by a communication method according to a predetermined standard in a control system in which the conversion device and the conversion device are connected by a predetermined connection line.
A communication device that is equipped with a communication means that communicates by a communication method according to the predetermined standard and a connector that can connect the predetermined connection line and does not convert the signal format is installed.
After disconnecting the control device and the conversion device, the conversion device is connected to the connector of the communication device by the predetermined connection line, and the communication means of the communication device and the new control A method for updating a control device, which comprises setting the device to communicate with the device by a communication method according to the predetermined standard. 前記通信装置には、前記通信手段として機能する通信ユニットがモジュール化されて交換可能に設置されていることを特徴とする請求項１に記載の制御装置の更新方法。 Wherein the communication device, the update process of the control apparatus according to claim 1, the communication unit is characterized in that it is installed into a module interchangeably functioning as the communication means. 前記通信装置には、前記コネクタがモジュール化されて交換可能に設置されていることを特徴とする請求項１又は２に記載の制御装置の更新方法。 The method for updating a control device according to claim 1 or 2 , wherein the connector is modularized and exchangeably installed in the communication device .
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