WO2010116488A1 - 通信アダプター装置 - Google Patents
通信アダプター装置 Download PDFInfo
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- WO2010116488A1 WO2010116488A1 PCT/JP2009/057097 JP2009057097W WO2010116488A1 WO 2010116488 A1 WO2010116488 A1 WO 2010116488A1 JP 2009057097 W JP2009057097 W JP 2009057097W WO 2010116488 A1 WO2010116488 A1 WO 2010116488A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- the present invention relates to a communication adapter device for connecting a main device such as a control device to a communication network.
- data transmission / reception is performed between a main device such as a control device and various device devices via a communication network. Since various communication infrastructures are mixed in the market, the main device needs to perform communication corresponding to the communication specifications of the communication network.
- a network-dependent module equipped with a functional circuit that executes a protocol depending on each of the plurality of types of networks and a network independent module equipped with a functional circuit that executes a common protocol independent of the plurality of types of networks;
- the network dependent module is provided with a communication connector for connecting one of the plurality of types of networks, and the network independent module is provided with a device connector for connecting with a processing device.
- a module has been proposed in which the module and the network independent module are connected to each other via an interconnection interface circuit and a detachable module connector (see, for example, Patent Document 3).
- Japanese Patent Laid-Open No. 11-127213 (2nd page, FIG. 2) JP-A-5-227168 (2nd page, FIG. 1) Japanese Utility Model Publication No. 5-88050 (5th page, FIG. 1)
- the terminal unit is connected to various communication networks by changing the communication adapter corresponding to the various communication networks.
- a communication adapter since it is necessary to prepare a communication adapter for each communication network, a user must purchase a plurality of communication adapters, which increases costs.
- a loss since the manufacturer has to manufacture and manage a communication adapter for each communication network, a loss may occur due to an increase in the number of stocks and an increase in defective inventory (unsold).
- Patent Document 2 The technique described in Patent Document 2 is based on TCP / IP that conforms to the OSI reference model, and cannot be applied to communication networks having different communication protocols and data formats.
- the network dependent module is divided into a network dependent module and a network independent module, and the network dependent module is replaced according to the communication network.
- the connection method to the main device is limited, and it is difficult to realize a configuration such as an external connection to the main device.
- the present invention has been made in order to solve the above-described problems, and provides a communication adapter device that can easily connect a main device to a plurality of communication networks having different communication protocols.
- a communication adapter device is a communication adapter device for connecting a main device to a communication network, and stores a main device interface unit connected to the main device and a plurality of communication protocol stacks corresponding to various communication networks.
- Protocol selection means for selecting one, and protocol abstraction means for performing data conversion of data transmitted / received between the main device and a communication network according to the communication protocol stack selected by the protocol selection means It is.
- the main device can be connected to various communication networks without changing the software on the main device side by performing data conversion between the main device and the communication network according to the selected communication protocol. Can be easily connected to.
- FIG. 2 is a hardware configuration diagram of the communication adapter device showing the first embodiment.
- 2 is a functional configuration diagram of a communication adapter device showing Embodiment 1.
- FIG. 3 is a flowchart illustrating a communication protocol selection operation according to the first embodiment.
- 6 is a diagram for explaining an operation of a communication protocol abstraction unit according to the first embodiment.
- FIG. 10 is a diagram for explaining the operation of a communication protocol abstraction unit showing the second embodiment.
- FIG. 10 is a hardware configuration diagram of a communication adapter device showing a third embodiment.
- FIG. 10 is a diagram for explaining the operation of the communication adapter device according to the third embodiment.
- FIG. 10 is a hardware configuration diagram of a communication adapter device showing a fourth embodiment.
- FIG. 1 is a diagram showing a hardware configuration of a communication adapter device according to Embodiment 1 of the present invention.
- the communication adapter device 100 is a device for connecting a main device 200 such as a control device to a network via a communication cable 300, for example.
- a communication network connected by Ethernet registered trademark
- the communication adapter device 100 includes a main device interface unit 1, a microcomputer 2, a memory 3, a protocol selection switch 4, a communication control circuit 5, and an Ethernet connection connector 6.
- the main device interface unit 1 is an interface for connecting to the main device 200, and includes, for example, a dedicated plug.
- the microcomputer 2 controls the operation of each part of the communication adapter device 100 and corresponds to the control part of the present invention.
- the memory 3 is a readable / writable storage device that stores a conversion table 12 and a conversion rule 13 to be described later, and stores various communication data that the communication adapter device 100 transmits and receives to and from the main device 200.
- the protocol selection switch 4 is a switch for selecting a communication protocol of a communication network to be connected, and is composed of a 2-bit DIP switch.
- the user designates the communication protocol of the communication network by operating the protocol selection switch 4.
- the correspondence between the bit setting of the protocol selection switch 4 and the communication protocol is set in advance as 00: PROFINET, 01: modbus-TCP, 10: EtherNet / IP, and the like.
- the communication control circuit 5 is a circuit for controlling Ethernet communication, and is controlled by the microcomputer 2 to control transmission / reception of communication data.
- the Ethernet connection connector 6 is a connector for connecting the Ethernet communication cable 300 to the communication adapter device 100.
- the communication adapter device 100 and the main device 200 configured as described above can transmit data to each other via the bus 8 by connecting the communication adapter interface unit 7 and the main device interface unit 1.
- the main device 200 can be connected to a communication network via the communication adapter device 100 and the communication cable 300.
- FIG. 2 is a diagram showing a functional configuration of the communication adapter device 100 according to Embodiment 1 of the present invention.
- the communication adapter device 100 includes a communication protocol abstraction unit 9, a protocol selection unit 10, a protocol stack 11, a conversion table 12, a conversion rule 13, and an Ethernet driver 14. Each function realized by the communication adapter device 100 is executed by the microcomputer 2 based on a program stored in advance in a memory 3 or a memory (not shown) built in the microcomputer 2.
- the protocol selection unit 10 selects a protocol stack to be used from the protocol stack A 11-1, protocol stack B 11-2, and protocol stack C 11-3 based on the setting of the protocol selection switch 4. Further, the protocol selection unit 10 notifies the communication protocol abstraction unit 9 of the selected protocol stack.
- the conversion table 12 and the conversion rule 13 are table information or rule information storing correspondence between data transmitted / received by the main device 200 and data suitable for the communication network, and are stored in the memory 3.
- a case where both the conversion table 12 and the conversion rule 13 are provided will be described as an example. However, depending on the type of communication network, only one of them may be provided.
- the communication protocol abstraction unit 9 converts the data transmitted / received by the main device 200 into a data format suitable for the communication protocol of the connected communication network, using either or both of the conversion table 12 and the conversion rule 13. Further, as necessary, data frames are generated and data input / output with the protocol stack 11 is controlled.
- the protocol stack 11 is a program module for performing network communication, and includes three types of protocol stack A 11-1, protocol stack B 11-2, and protocol stack C 11-3 for each communication protocol.
- the protocol stacks A11-1, B11-2, and C11-3 can be PROFINET, modbus-TCP, and EtherNet / IP protocol stacks, respectively.
- the protocol stack A11-1, protocol stack B11-2, and protocol stack C11-3 may be collectively referred to as the protocol stack 11.
- the Ethernet driver 14 controls the Ethernet communication control circuit 5.
- the communication protocol stack storage unit, the conversion table storage unit, and the conversion rule storage unit of the present invention are realized by the memory 3 in the first embodiment.
- the main device 200 includes functional software 15 that connects to a communication network and transmits and receives data.
- FIG. 3 is a flowchart showing a protocol stack selection operation by the protocol selection unit 10.
- the protocol selection unit 10 reads the switch setting of the protocol selection switch 4 based on a signal input from the protocol selection switch 4 to the microcomputer 2 (S21). Then, it is determined whether or not the protocol selection switch 4 is set (S22). If there is no switch setting, an error process for setting the communication protocol is performed (S23). As the error processing, for example, an LED (not shown) provided in the communication adapter device 100 can be blinked to notify the user that an error has occurred. Alternatively, the main device 200 can be notified of the occurrence of an error, and an error message can be displayed on a display device (not shown) connected to or installed in the main device 200.
- one of the protocol stack A11-1, protocol stack B11-2, and protocol stack C11-3 is selected based on the setting (S24). For example, if the bit setting of the protocol selection switch 4 is “00”, the protocol stack A11-1 is set, “01” is the protocol stack B11-2, and “10” is the protocol stack C11-3. In this way, the protocol stack can be selected according to the switch setting of the protocol selection switch 4.
- the protocol selection unit 10 notifies the selected protocol stack to the communication protocol abstraction unit 9 (S25). Then, the communication protocol abstraction unit 9 performs data conversion of data transmitted / received by the main device 200 based on the selected protocol stack 11.
- FIG. 4 is a diagram for explaining the operation of the communication protocol abstraction unit 9, and only relevant components among the components constituting the main device 200 and the communication adapter device 100 are described.
- the function software 15 of the main device 200 outputs all data that is desired to be transmitted via the communication network, such as control data, measurement data, and status data.
- the communication network such as control data, measurement data, and status data.
- there are methods such as mutual access of a memory image by a shared memory, and transmission / reception of data by a serial interface or the like.
- the function software 15 can output all data to be transmitted regardless of the communication protocol of the connected communication network.
- the communication protocol abstraction unit 9 When the communication protocol abstraction unit 9 acquires the data output from the function software 15, the communication protocol abstraction unit 9 converts the data into data matching the selected protocol stack 11 based on the conversion table 12 and the conversion rule 13. Specifically, data corresponding to the communication protocol is selected or data type conversion is performed, and a data frame is generated as necessary. Then, the data after data conversion is output to the protocol stack 11. In this way, the data output from the function software 15 can be output to the protocol stack 11 in accordance with the specifications of the communication network to be connected.
- the communication protocol abstraction unit 9 converts the data into data that can be received by the functional software 15 based on the conversion table 12 and the conversion rule 13, and converts all data to the main device. 200.
- the main device 200 performs conversion of data transmitted to and received from the communication network.
- a communication protocol abstraction unit 9 is provided. For this reason, the main device 200 can exchange data with the communication adapter device 100 regardless of the communication protocol of the communication network to be connected. Therefore, it is not necessary to develop the function software 15 for each communication protocol, and the development cost of the main device 200 can be reduced.
- the communication protocol to be used can be easily selected by the protocol selection switch 4, it is possible to easily cope with various network connections. Further, if the protocol stack 11 is prepared, it is possible to connect to a plurality of communication networks, so that it is not necessary to manufacture a plurality of types of hardware of the communication adapter device 100, and the manufacturing cost can be reduced. In addition, since it is not necessary to manufacture a communication adapter device for each communication protocol, it is possible to avoid a loss due to an increase in stock varieties and a corresponding increase in defective stock (unsold products).
- the protocol selection switch 4 is configured with 2 bits, but a 4-bit configuration may be used.
- the 2-bit setting set by the user and the inverted setting are set to the remaining 2 bits. By doing so, misidentification of the communication network can be suppressed in the case of forgetting to set.
- Embodiment 2 FIG. In the first embodiment described above, an example in which all data of the function software 15 of the main device 200 function is shared between the main device 200 and the communication adapter device 100 has been described. In the second embodiment, an embodiment in which the amount of data shared by the main device 200 and the communication adapter device 100 can be reduced will be described. Note that the same reference numerals are assigned to components that are the same as or correspond to those in the first embodiment.
- FIG. 5 is a diagram for explaining the operation of the communication protocol abstraction unit 9 according to the second embodiment, in which only relevant components of the main device 200 and the communication adapter device 100 are described.
- the communication adapter device 100 has a memory map table 16 stored in the memory 3.
- the memory map table 16 is table information that stores a memory map configuration of a data memory (not shown) of the main device 200.
- the communication protocol abstraction unit 9 can grasp the address of the data memory of the main device 200 and the contents of data written to the address.
- the memory map storage unit of the present invention is realized by the memory 3 in the second embodiment.
- the function software 15 and the communication protocol abstraction unit 9 transmit / receive data to / from each other by designating a range in which data is read / written.
- a case where data is transmitted from the function software 15 will be described as an example.
- the function software 15 When it is desired to transmit only the measurement data among the data stored in the data memory, the function software 15 notifies the communication protocol abstraction unit 9 by specifying the address of the start position and the length of the data.
- the communication protocol abstraction unit 9 acquires measurement data of the function software 15 based on the address of the designated start position and the data length. Then, the data is converted into data suitable for the communication protocol based on the conversion table 12 and the conversion rule 13, and the data after data conversion is output to the protocol stack 11. In this way, the data output from the function software 15 can be output to the protocol stack 11 in accordance with the specifications of the communication network to be connected.
- the memory map table 16 indicating the configuration of the data memory of the main device 200 is provided. For this reason, only data to be transmitted / received can be acquired from the main device 200. Therefore, it is possible to reduce memory resources that the communication adapter device 100 should have for data conversion performed by the main device 200.
- data transmission / reception between the function software 15 and the communication protocol abstraction unit 9 is performed by arranging similar data and data to be transmitted / received simultaneously. Can be performed more efficiently.
- Embodiment 3 FIG.
- the communication adapter device that can connect the main device 200 to various communication networks having a common physical interface has been described.
- a communication adapter apparatus applicable to communication networks having different physical interfaces will be described.
- FIG. 6 is a diagram illustrating a hardware configuration of the communication adapter device 100A according to the third embodiment.
- the communication adapter device 100A is divided into a common unit 110 and an exchange unit 120. Note that the same or corresponding components as those in the first embodiment are given the same reference numerals.
- the common unit 110 includes a main device interface unit 1, a microcomputer 2, a memory 3 that stores a conversion table 12 and conversion rules 13, a non-contact coil control unit 31, and a non-contact coil 32.
- the exchange unit 120 includes a non-contact coil 33, a non-contact coil control unit 34, a communication protocol setting unit 35, a communication control circuit 36, and a connection connector 37.
- the connection connector 37 is a connector corresponding to the physical interface of the communication network to be connected. In the case of Ethernet, the Ethernet connection connector 6 described in the first embodiment corresponds to the connection connector 37 in the third embodiment. .
- the communication control circuit 36 is a communication control circuit corresponding to a physical interface.
- the non-contact coils 32 and 14 are antenna coils for performing non-contact communication.
- the non-contact coil control unit 31 is a control circuit that controls the non-contact coil 32
- the non-contact coil control unit 34 is a control circuit that controls the non-contact coil 33.
- the common unit 110 and the exchange unit 120 are physically detachable, and can be communicated by non-contact serial communication via the non-contact coil 32 and the non-contact coil 33.
- the communication protocol setting unit 35 is a circuit that sets the communication protocol supported by the exchange unit 120 to the common unit 110 by non-contact serial communication via the non-contact coils 32 and 14.
- FIG. 7 is a diagram for explaining the operation of the communication adapter device 100A configured as described above.
- a plurality of switching units 120A to 120C can be provided for each physical interface of the communication network to be connected.
- the exchange units 120A to 120C have different connection connectors 37-1 to 37-3, respectively, and can be connected to the communication cables 300-1 to 300-3.
- the communication protocol setting units 35-1 to 35-3 of the exchange units 120A to 120C set the communication protocol that they correspond to the common unit 110.
- the user selects and installs one of the exchange units 120A to 120C according to the physical interface of the communication network to which the main device 200 is connected.
- the communication protocol setting unit 35 of the selected exchange unit 120 sets the communication protocol for the common unit 110 via non-contact serial communication.
- the common unit 110 selects the protocol stack 11 as described in the first and second embodiments on the basis of the set communication protocol, and between the main device 200 and the communication network according to the protocol stack 11. Performs data conversion of data sent and received by.
- the communication adapter device 100A As described above, according to the communication adapter device 100A according to the third embodiment, a part having a different physical interface of the communication network can be detached from the common unit 110 as the exchange unit 120. For this reason, the main device 200 can be easily connected to a plurality of communication networks having different physical interfaces. In addition, since the component that does not depend on the difference in the physical interface is the common unit 110, the common unit 110 can be shared even if the physical interface changes. Therefore, the manufacturing cost of the communication adapter device 100A can be reduced.
- the exchange unit 120 incorporates only the minimum components depending on the physical interface of the communication network. For this reason, the manufacturing cost of the exchange part 120 can be reduced.
- the degree of freedom of arrangement of the exchange unit 120 can be increased. Since the connection connector 37 of the exchange unit 120 has various shapes depending on the communication network, the shape and size of the exchange unit 120 itself may vary depending on the connection connector 37. Even in such a case, since the degree of freedom of arrangement of the exchange unit 120 is high, the exchange unit 120 can be arranged according to the installation environment. For example, even when the space for installing the communication adapter device 100A is limited, such as when the communication adapter device 100A is externally attached to the main device 200, the exchange unit 120 can be arranged at an appropriate position. .
- Embodiment 4 FIG.
- the communication protocol setting unit 35 performs the communication protocol setting from the exchange unit to the common unit by non-contact communication.
- the communication protocol is notified from the exchange unit to the common unit.
- symbol is attached
- FIG. 8 is a diagram illustrating a hardware configuration of the communication adapter device 100B according to the fourth embodiment.
- the communication adapter device 100B is configured by being divided into a common unit 130 and an exchange unit 140.
- the common unit 130 includes a main device interface unit 1, a microcomputer 2, a memory 3 that stores a conversion table 12 and a conversion rule 13, a photo sensor 41, and a connection connector 42.
- the exchange unit 140 includes a connection connector 43, an LED 44, an LED lighting circuit 45, a communication control circuit 36, and a connection connector 37.
- connection connectors 42 and 43 are arbitrary connection connectors that connect the common unit 130 and the exchange unit 140.
- the LED 44 corresponds to the light emitting means of the present invention, and is controlled by the LED lighting circuit 45 so that the exchange unit 140 is lit with a lighting pattern or lighting frequency according to the corresponding communication protocol.
- the lighting pattern can be determined by, for example, the number of blinks and the blink interval.
- the LED 44 may be an LED installed as a communication indicator indicating the communication state of the communication adapter device 100B.
- the photo sensor 41 is a light receiving unit that receives light emitted from the LED 44 and outputs a signal corresponding to the received light to the microcomputer 2, and is installed at a position where the light emitted from the LED 44 can be received.
- a plurality of exchange units 140 configured in this manner can be provided for each physical interface of the communication network to be connected, as in the third embodiment. Then, the exchange unit 140 selected according to the communication network to which the main device 200 is connected is connected to the common unit 130.
- the microcomputer 2 of the common unit 130 transmits a trigger signal to the exchange unit 140 via the connection connectors 42 and 43.
- the LED lighting circuit 45 lights the LED 44 with a lighting pattern corresponding to the communication protocol supported by the exchange unit 140.
- the photo sensor 41 receives light emitted from the LED 44 and outputs a signal corresponding to the received light to the microcomputer 2.
- the protocol selection unit 10 of the microcomputer 2 Upon receiving the signal output from the photosensor 41, the protocol selection unit 10 of the microcomputer 2 reads the lighting pattern of the LED 44, determines which communication protocol is supported, and selects one of the protocol stacks 11.
- the common unit performs data conversion of data transmitted / received between the main device 200 and the communication network in accordance with the protocol stack 11 as described in the first and second embodiments.
- the communication adapter device 100B As described above, according to the communication adapter device 100B according to the fourth embodiment, a part having a different physical interface of the communication network can be attached to and detached from the common unit 130 as the exchange unit 140. For this reason, the manufacturing cost of the communication adapter device 100B can be reduced as in the third embodiment.
- the communication protocol is determined based on the light of the LED 44 that is turned on by the exchange unit 140 in a pattern corresponding to the communication protocol. For this reason, the communication adapter device 100B can be configured at a lower cost than the configuration in which the common unit and the exchange unit communicate by serial communication using the non-contact coil described in the third embodiment. Further, if the LED installed as the communication indicator is the LED 44 of the fourth embodiment, it is not necessary to provide a separate LED, and the manufacturing cost can be further reduced.
- the present invention can be applied to a system using various networks that are being opened, such as FA (Factory Automation) and building facilities.
- FA Vectory Automation
Abstract
Description
図1は、本発明の実施の形態1に係る通信アダプター装置のハードウェア構成を示す図である。通信アダプター装置100は、例えば制御機器などの主機器200を通信ケーブル300を介してネットワークに接続するための装置である。なお、本実施の形態1では、イーサネット(登録商標)により接続する通信ネットワークを例に説明する。
マイコン2は、通信アダプター装置100の各部の動作を制御するものであり、本発明の制御部に相当する。
メモリ3は、後述する変換テーブル12、変換ルール13を格納するとともに、通信アダプター装置100が主機器200との間で送受信する各種通信データを格納する、読み書き可能な記憶装置である。
イーサネット接続コネクタ6は、イーサネットの通信ケーブル300を通信アダプター装置100に接続するためのコネクタである。
通信アダプター装置100は、通信プロトコル抽象化部9と、プロトコル選択部10と、プロトコルスタック11と、変換テーブル12と、変換ルール13と、イーサネットドライバ14とを備える。通信アダプター装置100により実現される各機能は、メモリ3あるいはマイコン2に内蔵された図示しないメモリに予め格納されたプログラムに基づいて、マイコン2により実行される。
なお、本発明の通信プロトコルスタック記憶部、変換テーブル記憶部、及び変換ルール記憶部は、本実施の形態1ではメモリ3にて実現している。
図3は、プロトコル選択部10によるプロトコルスタックの選択動作を示すフローチャートである。
図4は、通信プロトコル抽象化部9の動作を説明する図であり、主機器200、通信アダプター装置100を構成する構成要素のうち関連するもののみ記載している。
図4において、主機器200の機能ソフトウェア15は、例えば制御データ、計測データ、ステータスデータなど、通信ネットワークを介して送信したいすべてのデータを出力する。出力方法としては、共有メモリによるメモリイメージの相互アクセス、シリアルインターフェース等によるデータの送受信などの方法がある。機能ソフトウェア15は、接続する通信ネットワークの通信プロトコルに関係なく、送信したいデータすべてを出力することができる。
プロトコルスタック11が通信ネットワークを介してデータを受信すると、通信プロトコル抽象化部9は、変換テーブル12や変換ルール13に基づいて機能ソフトウェア15が受信可能なデータにデータ変換し、全データを主機器200に送信する。
前述の実施の形態1では、主機器200機能の機能ソフトウェア15のすべてのデータを、主機器200と通信アダプター装置100とで共有する例を示した。本実施の形態2では、主機器200と通信アダプター装置100で共有するデータ量を削減することのできる実施の形態について述べる。なお、前述の実施の形態1と同様又は相当する構成要素には、同一の符号を付している。
機能ソフトウェア15と通信プロトコル抽象化部9は、データの読み出し/書き込みを行う範囲を指定することにより、互いにデータの送受信を行う。ここでは、機能ソフトウェア15からデータを送信する場合を例に説明する。
通信プロトコル抽象化部9は、指定された開始位置のアドレスとデータの長さに基づいて、機能ソフトウェア15の計測データを取得する。そして、変換テーブル12や変換ルール13に基づいて通信プロトコルに適合するデータに変換し、データ変換後のデータをプロトコルスタック11に出力する。このようにすることで、機能ソフトウェア15から出力されたデータを、接続する通信ネットワークの仕様に合わせてプロトコルスタック11に出力することができる。
前述の実施の形態1、2では、物理インターフェースが共通する各種通信ネットワークに主機器200を接続可能な通信アダプター装置について説明した。本実施の形態3では、物理インターフェースの異なる通信ネットワークに適用可能な通信アダプター装置について説明する。
また、交換部120は、非接触コイル33と、非接触コイル制御部34と、通信プロトコル設定部35と、通信制御回路36と、接続コネクタ37とを備える。接続コネクタ37は、接続する通信ネットワークの物理インターフェースに対応したコネクタであり、イーサネットの場合には前述の実施の形態1で述べたイーサネット接続コネクタ6が本実施の形態3の接続コネクタ37に対応する。通信制御回路36は、物理インターフェースに対応した通信制御回路である。
図7に示すように、接続する通信ネットワークの物理インタフェースごとに、複数の交換部120A~120Cを設けることができる。交換部120A~120Cは、それぞれ異なる接続コネクタ37-1~37-3を有しており、各々が通信ケーブル300-1~300-3に接続可能である。また、交換部120A~120Cの通信プロトコル設定部35-1~35-3は、自身が対応する通信プロトコルを共通部110に対して設定する。
前述の実施の形態3では、交換部から共通部への通信プロトコルの設定を、通信プロトコル設定部35が非接触通信によって行っていた。本実施の形態4では、交換部から共通部へ通信プロトコルを通知する他の例を説明する。なお、前述の実施の形態1、3と同等又は相当する構成要素には同一の符号を付している。
共通部130は、主機器インターフェース部1と、マイコン2と、変換テーブル12及び変換ルール13を格納するメモリ3と、フォトセンサー41と、接続コネクタ42とを備える。
また、交換部140は、接続コネクタ43と、LED44と、LED点灯回路45と、通信制御回路36と、接続コネクタ37とを備える。
フォトセンサー41が出力した信号を受け取ったマイコン2のプロトコル選択部10は、LED44の点灯パターンを読み取ってどの通信プロトコルに対応するかを判断していずれかのプロトコルスタック11を選択する。そして、共通部は、前述の実施の形態1、2で述べたのと同様に、プロトコルスタック11に応じて、主機器200と通信ネットワークとの間で送受信するデータのデータ変換を行う。
Claims (8)
- 主機器を通信ネットワークに接続する通信アダプター装置であって、
前記主機器と接続する主機器インターフェース部と、
各種通信ネットワークに対応した複数の通信プロトコルスタックを格納する通信プロトコルスタック記憶部と、
制御部と、
前記通信ネットワークに接続する通信接続コネクタと、
通信データの送受信を制御する通信制御部とを備え、
前記制御部は、
前記複数の通信プロトコルスタックのうち1つを選択するプロトコル選択手段と、
前記プロトコル選択手段によって選択された通信プロトコルスタックに応じて、前記主機器と通信ネットワークとの間で送受信するデータのデータ変換を行うプロトコル抽象化手段とを有する
ことを特徴とする通信アダプター装置。 - 前記データ変換を行うための変換テーブルを格納する変換テーブル記憶部、もしくは、前記データ変換を行うための変換ルール情報を格納する変換ルール記憶部、のいずれかまたは両方を備えた
ことを特徴とする請求項1記載の通信アダプター装置。 - 前記プロトコル選択手段に対し、選択する通信プロトコルスタックを指定する操作スイッチを備えた
ことを特徴とする請求項1または請求項2記載の通信アダプター装置。 - 前記操作スイッチは、誤設定を検出するための判定ビットを付加した信号を前記プロトコル選択手段に出力する
ことを特徴とする請求項3記載の通信アダプター装置。 - 前記主機器のメモリマップ構成を格納するメモリマップ記憶部を備え、
前記プロトコル抽象化手段は、前記メモリマップ構成に基づいて開始アドレスと範囲を指定して、データ変換するデータの読み出し、又は、データ変換後のデータの書き込みを行う
ことを特徴とする請求項1~請求項4のいずれか記載の通信アダプター装置。 - 主機器を通信ネットワークに接続する通信アダプター装置であって、
前記主機器と接続する主機器インターフェース部、
各種通信ネットワークに対応した複数の通信プロトコルスタックを格納する通信プロトコルスタック記憶部、
及び制御部を備えた共通部と、
前記通信ネットワークに接続する通信接続コネクタ、
及び通信データの送受信を制御する通信制御部を備えた変換部とを備え、
前記制御部は、
前記複数の通信プロトコルスタックのうち1つを選択するプロトコル選択手段と、
前記プロトコル選択手段によって選択された通信プロトコルスタックに応じて、前記主機器と通信ネットワークとの間で送受信するデータのデータ変換を行うプロトコル抽象化手段とを備え、
前記共通部と変換部は物理的に分離可能である
ことを特徴とする通信アダプター装置。 - 前記共通部は、前記変換部との間で非接触通信を行う共通部非接触コイルを備え、
前記変換部は、前記共通部との間で非接触通信を行う変換部非接触コイルと、
前記プロトコル選択手段に対し、選択する通信プロトコルスタックを設定する通信プロトコル設定部とを備えた
ことを特徴とする請求項6記載の通信アダプター装置。 - 前記変換部は、通信ネットワークの種別に応じた光を発光する発光手段を備え、
前記共通部は、前記発光手段が発光した光を受光してこれに対応する信号を出力する受光手段を備え、
前記プロトコル選択手段は、前記受光手段からの出力信号に基づいて前記複数の通信プロトコルスタックのうち1つを選択する
ことを特徴とする請求項6記載の通信アダプター装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US13/256,942 US20120014395A1 (en) | 2009-04-07 | 2009-04-07 | Communication adapter apparatus |
JP2011508127A JPWO2010116488A1 (ja) | 2009-04-07 | 2009-04-07 | 通信アダプター装置 |
CN2009801584727A CN102365844A (zh) | 2009-04-07 | 2009-04-07 | 通信适配器装置 |
EP09842998A EP2418807A4 (en) | 2009-04-07 | 2009-04-07 | ADAPTER COMMUNICATION DEVICE |
PCT/JP2009/057097 WO2010116488A1 (ja) | 2009-04-07 | 2009-04-07 | 通信アダプター装置 |
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PCT/JP2009/057097 WO2010116488A1 (ja) | 2009-04-07 | 2009-04-07 | 通信アダプター装置 |
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EP (1) | EP2418807A4 (ja) |
JP (1) | JPWO2010116488A1 (ja) |
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JP5877742B2 (ja) * | 2012-03-19 | 2016-03-08 | 平田機工株式会社 | 制御装置及び制御方法 |
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TR201808433T4 (tr) * | 2015-01-12 | 2018-07-23 | Siemens Schweiz Ag | Birden fazla protokolü destekleyen saha cihazı. |
JP6580266B2 (ja) * | 2016-07-15 | 2019-09-25 | 三菱電機株式会社 | 通信アダプタ、電気機器、電気機器システム、通信アダプタを制御する方法およびプログラム |
CN108255124B (zh) | 2016-12-28 | 2021-05-14 | 欧姆龙株式会社 | 对plc进行程序和参数传递的方法、装置和系统 |
JP7032158B2 (ja) * | 2018-02-05 | 2022-03-08 | アズビル株式会社 | 通信制御コントローラ |
US11354202B1 (en) * | 2018-12-12 | 2022-06-07 | Insitu Inc., A Subsidiary Of The Boeing Company | Mixed-criticality network for common unmanned system architecture |
DE202019101745U1 (de) * | 2019-03-27 | 2020-06-30 | Wago Verwaltungsgesellschaft Mbh | Elektronikgerät und Kommunikationseinheit |
CN112636810A (zh) * | 2020-12-07 | 2021-04-09 | 中国科学院上海光学精密机械研究所 | 海陆激光雷达与无人机通信的适配器及其通信方法 |
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CN102365844A (zh) | 2012-02-29 |
EP2418807A4 (en) | 2012-09-19 |
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