WO2022149292A1 - Auxiliary device - Google Patents

Auxiliary device Download PDF

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Publication number
WO2022149292A1
WO2022149292A1 PCT/JP2021/008323 JP2021008323W WO2022149292A1 WO 2022149292 A1 WO2022149292 A1 WO 2022149292A1 JP 2021008323 W JP2021008323 W JP 2021008323W WO 2022149292 A1 WO2022149292 A1 WO 2022149292A1
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Prior art keywords
unit
auxiliary device
power supply
connection
power
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PCT/JP2021/008323
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French (fr)
Japanese (ja)
Inventor
誠治 岡
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オムロン株式会社
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Publication of WO2022149292A1 publication Critical patent/WO2022149292A1/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts

Definitions

  • the present invention relates to an auxiliary device connected to a PLC.
  • Patent Document 1 discloses a PLC system capable of determining a power supply state in each unit constituting the PLC system.
  • the power supply unit that constitutes the PLC uses parts such as electrolytic capacitors that have a relatively short life, and often needs to be replaced earlier than other units.
  • parts such as electrolytic capacitors that have a relatively short life, and often needs to be replaced earlier than other units.
  • the power supply unit cannot be replaced unless the system including the PLC is stopped even when it is desirable to operate the system continuously.
  • One aspect of the present invention has been made in view of the above problems, and an object thereof is to enable replacement of a power supply unit without stopping a system including a PLC.
  • the present invention adopts the following configuration in order to solve the above-mentioned problems.
  • the auxiliary device is an auxiliary device as the unit in which a plurality of units are connected to form a programmable logic controller, and the auxiliary device is different.
  • the auxiliary device When connected to the unit, the auxiliary device is electrically connected to the first connection portion that transmits power to and from the first unit, which is the other unit, and the first connection portion.
  • a second connection unit that transmits power to and from the second unit, which is the other unit when connected to yet another second unit, and a third connection for receiving power from the outside. It is provided with a third connection portion capable of supplying the received power toward the first connection portion and the second connection portion.
  • the power supply unit can be replaced without stopping the system including the PLC.
  • An example of an application scene of the auxiliary device according to the first embodiment is schematically illustrated.
  • An example of the hardware configuration of the auxiliary device according to the first embodiment is schematically illustrated. It is a flowchart which illustrates the procedure when the administrator replaces a power supply unit.
  • An example of the hardware configuration of the auxiliary device according to the second embodiment is schematically illustrated.
  • An example of the application scene of the auxiliary device according to the modified example is schematically illustrated.
  • An example of the application scene of the auxiliary device according to the modified example is schematically illustrated.
  • An example of the application scene of the auxiliary device according to the modified example is schematically illustrated.
  • An example of the application scene of the auxiliary device according to the modified example is schematically illustrated.
  • FIG. 1 schematically illustrates an example of an application scene of the auxiliary device 10 according to the present embodiment. Further, FIG. 1 shows the entire PLC1 to which the auxiliary device 10 is connected.
  • FIG. 2 schematically illustrates an example of the hardware configuration of the auxiliary device 10 according to the present embodiment.
  • the PLC 1 includes a power supply unit 12, an auxiliary device 10, a CPU unit 14, an I / O control unit 16, one or a plurality of constituent units 18, and an end cover (end plate) 20.
  • the constituent unit 18 includes, for example, a basic I / O unit, a high-performance I / O unit, and a CPU high-performance unit. Further, the adjacent units and the like are connected to each other to transmit electric power and signals.
  • the auxiliary device 10 is an auxiliary device as the unit in which a plurality of units are connected to form a PLC, and when the power supply unit 12 is replaced or the like, the electric power received from the outside such as the external power supply 32 is received. It is a device for making it possible to supply to other units of PLC1.
  • the auxiliary device 10 is configured to be connected between the power supply unit 12 and the CPU unit 14 as shown in FIG. In the above configuration, when the PLC 1 operates with the power of the power supply unit 12, the auxiliary device 10 supplies the power supplied from the power supply unit 12 to the adjacent CPU unit 14.
  • the auxiliary device 10 is a first connection unit 22 that transmits power to and from the first unit, which is the other unit, when the auxiliary device 10 is connected to another unit. And when it is electrically connected to the first connection unit 22 and the auxiliary device 10 is connected to yet another second unit, power transmission with the second unit which is the still another unit.
  • a unit 26 is provided.
  • a PLC Programmable Logic Controller
  • the auxiliary device 10 is connected between the first unit and the second unit in PLC1 via the connection portions 34 and 36 of the respective units.
  • the first unit will be described as the power supply unit 12 and the second unit will be the CPU unit 14, but the present invention is not limited to this, and the auxiliary device 10 is connected between the other units, and the first unit is used.
  • the unit may be the CPU unit 14, and the second unit may be the I / O control unit 16.
  • the unit closer to the power supply unit 12 will be referred to as the first unit, and the unit farther from the power supply unit 12 will be referred to as the second unit.
  • the auxiliary device 10 includes a first connection unit 22, a second connection unit 24, a third connection unit 26, a fourth connection unit 28, and a fifth connection unit 30.
  • the first connection unit 22 is a connector for transmitting power to and from the first unit when the auxiliary device 10 is connected to the first unit.
  • the second connection unit 24 is a connector for transmitting power to and from the second unit when the auxiliary device 10 is connected to the second unit.
  • the first connection portion 22 and the second connection portion 24 are electrically connected to each other. Therefore, when the first unit and the second unit are connected to both sides of the auxiliary device 10, power can be transmitted between the first unit and the second unit.
  • the second connection unit 24 supplies the power supplied from the first connection unit 22 or the third connection unit 26 to the CPU unit 14 when it is connected to the CPU unit 14.
  • the third connection unit 26 receives the electric power supplied from the outside. Further, the third connection unit 26 may supply electric power received from the outside toward at least one of the first connection unit 22 and the second connection unit 24. Further, for example, an external power supply 32 different from the power supply unit 12 constituting the PLC 1 supplies electric power to the third connection unit 26.
  • the auxiliary device 10 supplies the power supplied from the first unit to the first connection unit 22 to the second unit via the second connection unit 24. can.
  • the power supplied from the external power supply 32 to the third connection portion 26 is connected to the second connection.
  • the power can be supplied to the first unit via the first connection unit 22.
  • the first connection unit 22 supplies the power received from the first unit toward the second connection unit 24, and the third connection unit 22.
  • the 26 does not accept the power from the outside as being consumed in the PLC 1, and when the power supply unit 12 is not connected in the PLC 1, the third connection portion 26 is the first connection portion 22 and the second connection. The electric power received from the outside can be supplied to the unit 24.
  • the signal line 38 in FIG. 2 indicates a signal transmission path indicating an address or other data. That is, signals are transmitted between the units constituting the PLC 1 via the signal line 38.
  • the fourth connection unit 28 is a connector for transmitting and receiving signals to and from the first unit when the auxiliary device 10 is connected to the first unit and the second unit.
  • the fifth connection unit 30 is a connector for transmitting and receiving signals to and from the second unit at the above time.
  • the fourth connection portion 28 may be realized as a connector integrated with the first connection portion 22, or may be realized as another connector.
  • the fifth connection portion 30 may be realized as a connector integrated with the second connection portion 24, or may be realized as another connector.
  • the CPU unit 14 controls the connection unit 36, the connection unit 37 connected to the adjacent I / O control unit 16, the DC transformer unit 40 that changes the voltage of DC power, and the entire CPU unit 14.
  • the control circuit 42 is provided.
  • the DC transformer unit 40 appropriately transforms the supplied DC power according to the specifications of the control circuit, and then supplies the supplied DC power to the control circuit 42.
  • FIG. 3 is a flowchart showing the above procedure example. Further, at the start of the procedure shown in the flowchart of FIG. 3, the first unit is connected to the first connection portion 22 of the auxiliary device 10, the second unit is connected to the second connection portion 24, and the PLC1 is connected. It is assumed that it is in operation.
  • the processing procedure described below is only an example, and each processing may be changed as much as possible. Further, with respect to the processing procedure described below, steps can be omitted, replaced, and added as appropriate according to the embodiment. The same applies to the subsequent embodiments.
  • Step S101 the administrator connects the external power supply 32 that outputs a predetermined voltage to the third connection unit 26 of the auxiliary device 10, and starts the power supply from the external power supply 32 to the PLC1.
  • step S102 the administrator stops the power supply from the power supply unit 12 to the PLC 1 by operating the power supply unit 12.
  • step S103 the administrator removes the power supply unit 12 from the PLC1.
  • Step S104 the administrator attaches a new power supply unit 12 to the PLC1.
  • step S105 the administrator starts the power supply from the power supply unit 12 to the PLC1 by operating the PLC1.
  • Step S106 the administrator stops the power supply from the external power supply 32 to the PLC 1 by operating the external power supply 32.
  • step S107 the administrator removes the external power supply 32 from the third connection portion 26.
  • FIG. 2 A second embodiment of the present invention will be described below.
  • the same reference numerals are given to the members having the same functions as the members described in the above-described embodiment, and duplicate explanations will not be repeated.
  • monitoring the quality of electric power means continuously evaluating whether or not the quality of electric power of interest meets a certain standard for operating the PLC1.
  • FIG. 4 schematically illustrates an example of the hardware configuration of the auxiliary device 10 according to the present embodiment.
  • the auxiliary device 10 is configured to further include a power supply monitoring unit 44 as compared with the auxiliary device 10 shown in FIG.
  • the power supply monitoring unit 44 monitors the quality of the power received from the third connection unit 26.
  • the power supply monitoring unit 44 monitors the quality of electric power, for example, by continuously evaluating the voltage of the electric power supplied from the external power source 32.
  • the power supply monitoring unit 44 determines that the quality of the electric power received from the third connection unit 26 does not satisfy the standard, for example, the power supply monitoring unit 44 transmits information indicating that fact to the CPU unit 14 via the signal line 38 to the CPU.
  • the unit 14 may be configured to perform a predetermined process.
  • the power supply monitoring unit 44 transfers the third connection unit 26. Monitor the quality of power received from.
  • the power supply monitoring unit 44 transmits information indicating that the quality of the electric power received from the outside is out of the standard value to the CPU unit 14 via the signal line 38 when the quality of the electric power does not meet a certain standard. do.
  • the CPU unit 14 performs a process of outputting the above information in order to notify the administrator.
  • the auxiliary device 10 may be provided with a notification function such as a warning lamp to warn that the quality of the electric power received from the outside is out of the reference value.
  • the administrator is supplied to the third connection unit 26 before switching the power supply source in the PLC 1 from the power supply unit 12 to the external power supply 32. It is possible to grasp whether the quality of power meets the criteria for operating the PLC1. When the power quality is out of the reference value, the power supply source in the PLC 1 is not switched from the power supply unit 12 to the external power supply 32, thereby contributing to stable power supply.
  • the quality of electric power may be, for example, a state in which noise is mixed.
  • the external power supply 32 containing a lot of noise is connected to the third connection portion 26 and the electric power is supplied, there is a possibility that the PLC 1 may fail.
  • the auxiliary device 10 of the second embodiment such a situation. Can be suppressed.
  • the position where the auxiliary device 10 is connected in the PLC 1 is not limited to the position between the power supply unit 12 and the CPU unit 14.
  • 5 to 7 schematically illustrate an example of an application scene of the auxiliary device 10 connected to each of the following positions.
  • -Between the CPU unit 14 and the I / O control unit 16 (FIG. 5)
  • -Between the constituent unit (I / O unit, etc.) 18 and the other constituent units 18 (FIG. 6)
  • the auxiliary device 10 may have a configuration in which the first connection portion 22 is connected to the connection portion of the terminal I / O unit instead of the end cover 20 so that power can be supplied to the PLC 1.
  • FIG. 5 shows that the first unit may be a (first) power supply unit and the second unit may be a CPU unit.
  • FIG. 6 shows that the first unit may be a CPU unit and the second unit may be an I / O control unit.
  • FIG. 7 shows that the first unit may be the first constituent unit and the second unit may be the second constituent unit.
  • connection portions in which one auxiliary device 10 receives electric power from the outside is not limited to a single number, and may be a plurality of connections.
  • the external power supply 32 may be configured to be connected to an AC power supply and output a DC voltage converted from the AC voltage, or may be configured to be realized as a mobile battery connected by a USB terminal or the like. good.
  • the auxiliary device (10) is an auxiliary device as the unit in which a plurality of units are connected to form a programmable logic controller, and the auxiliary device is connected to another unit.
  • a first connection unit (22) that transmits power to and from the first unit, which is the other unit, and the first connection unit are electrically connected
  • the auxiliary device is yet another.
  • a second connection unit (24) that transmits power to and from the second unit, which is another unit when connected to the second unit, and a third connection for receiving power from the outside.
  • the unit includes a third connection unit (26) capable of supplying the received power toward the first connection unit and the second connection unit.
  • the first connection portion and the second connection portion realize the transmission of electric power between the first unit and the second unit, and further, the electric power received from the outside through the third connection portion is the second. It can be supplied to at least one of the first unit and the second unit. This makes it possible to replace the power supply unit without stopping the system including the PLC.
  • the auxiliary device may further include a power supply monitoring unit (44) that monitors the quality of the power received from the third connection unit.
  • a power supply monitoring unit (44) that monitors the quality of the power received from the third connection unit.
  • the first unit may be a power supply unit (12), and the second unit may be a CPU unit (14). According to this configuration, it is possible to realize the transmission of electric power between the power supply unit and the CPU unit, and then supply the electric power received from the outside to the CPU unit via the third connection unit.
  • the first unit may be a CPU unit (14), and the second unit may be an I / O control unit (16).
  • the electric power received from the outside via the third connection unit is further transferred to the CPU unit and the I / O control unit. Can be supplied.
  • the first unit may be the first constituent unit (18), and the second unit may be the second constituent unit (18).
  • the electric power received from the outside through the third connecting portion is further transferred to the first constituent unit and the first constituent unit and the second constituent unit. It can be supplied to at least one of the second constituent units.
  • a fourth connection unit (a fourth connection unit) that exchanges signals with the first unit. 28) and a fifth connection unit (30) for exchanging signals between the second unit and the second unit are further provided to transmit signals between the first unit and the second unit. You may mediate. According to this configuration, for example, a signal can be transmitted in the entire PLC starting from the CPU unit.
  • the control block (particularly, the power supply monitoring unit 44) of the auxiliary device 10 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software.
  • the auxiliary device 10 includes a computer that executes instructions of a program that is software that realizes each function.
  • the computer includes, for example, one or more processors and a computer-readable recording medium that stores the program. Then, in the computer, the processor reads the program from the recording medium and executes it, thereby achieving the object of the present invention.
  • a CPU Central Processing Unit
  • the recording medium a “non-temporary tangible medium”, for example, a ROM (Read Only Memory) or the like, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used.
  • a RAM RandomAccessMemory
  • the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. It should be noted that one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the above program is embodied by electronic transmission.

Abstract

The present invention makes it possible to replace a power supply unit without stopping a system containing a PLC. This auxiliary device (10) serves as an auxiliary device of a plurality of units which are connected to form a programmable logic controller, the auxiliary device comprising: a first connection part (22) which, when the auxiliary device is connected to a separate unit, performs power transmission with a first unit, which is the separate unit; a second connection part (24) which is electrically connected to the first connection part (22), and when the auxiliary device (10) is connected to yet another separate second unit, performs power transmission with a second unit, which is the yet another separate unit; and a third connection part (26) for receiving power from outside, the third connection part (26) being capable of supplying the received power toward the first connection part (22) and the second connection part (24).

Description

補助装置Auxiliary device
　本発明は、ＰＬＣに連結される補助装置に関する。 The present invention relates to an auxiliary device connected to a PLC.
　電源ユニット及びＣＰＵユニット等の独立した機器を互いに連結することによって構成されるＰＬＣ（Programmable Logic Controller）が、従来技術として知られている。特許文献１では、ＰＬＣシステムを構成する各ユニットにおける電源供給状態を判断することができるＰＬＣシステムが開示されている。 A PLC (Programmable Logic Controller) configured by connecting independent devices such as a power supply unit and a CPU unit to each other is known as a conventional technique. Patent Document 1 discloses a PLC system capable of determining a power supply state in each unit constituting the PLC system.
日本国特許第５８１９０２３号公報Japanese Patent No. 5819023 Gazette
　ＰＬＣを構成する電源ユニットは、寿命が比較的短い電解コンデンサ等の部品を使用しており、他のユニットよりも早期に交換が必要となることが多い。しかしながら、上述のような従来技術においては、連続して稼働させることが望ましい場合であっても、ＰＬＣを含むシステムを停止しなければ電源ユニットを交換することができないという問題がある。 The power supply unit that constitutes the PLC uses parts such as electrolytic capacitors that have a relatively short life, and often needs to be replaced earlier than other units. However, in the above-mentioned conventional technique, there is a problem that the power supply unit cannot be replaced unless the system including the PLC is stopped even when it is desirable to operate the system continuously.
　本発明の一態様は、上記の問題に鑑みてなされたものであり、ＰＬＣを含むシステムを停止させることなく電源ユニットの交換を可能とすることを目的とする。 One aspect of the present invention has been made in view of the above problems, and an object thereof is to enable replacement of a power supply unit without stopping a system including a PLC.
　本発明は、上述した課題を解決するために、以下の構成を採用する。 The present invention adopts the following configuration in order to solve the above-mentioned problems.
　上記の課題を解決するために、本発明の一側面に係る補助装置は、複数のユニットが連結されてプログラマブルロジックコントローラが構成される、前記ユニットとしての補助装置であって、当該補助装置が別のユニットに連結されたときに、前記別のユニットである第１のユニットとの間での電力伝送をする第１接続部と、前記第１接続部に電気的に接続され、当該補助装置が更に別の第２のユニットに連結されたときに、前記更に別のユニットである第２のユニットとの間での電力伝送をする第２接続部と、外部から電力を受け入れるための第３接続部であって、前記第１接続部及び前記第２接続部に向けて、受け入れた電力を供給し得る第３接続部とを備える。 In order to solve the above problems, the auxiliary device according to one aspect of the present invention is an auxiliary device as the unit in which a plurality of units are connected to form a programmable logic controller, and the auxiliary device is different. When connected to the unit, the auxiliary device is electrically connected to the first connection portion that transmits power to and from the first unit, which is the other unit, and the first connection portion. A second connection unit that transmits power to and from the second unit, which is the other unit when connected to yet another second unit, and a third connection for receiving power from the outside. It is provided with a third connection portion capable of supplying the received power toward the first connection portion and the second connection portion.
　本発明の一態様によれば、ＰＬＣを含むシステムを停止させることなく電源ユニットの交換が可能となる。 According to one aspect of the present invention, the power supply unit can be replaced without stopping the system including the PLC.
実施形態１に係る補助装置の適用場面の一例を模式的に例示する。An example of an application scene of the auxiliary device according to the first embodiment is schematically illustrated. 実施形態１に係る補助装置のハードウェア構成の一例を模式的に例示する。An example of the hardware configuration of the auxiliary device according to the first embodiment is schematically illustrated. 管理者が電源ユニットを交換する場合の手順を例示するフローチャートである。It is a flowchart which illustrates the procedure when the administrator replaces a power supply unit. 実施形態２に係る補助装置のハードウェア構成の一例を模式的に例示する。An example of the hardware configuration of the auxiliary device according to the second embodiment is schematically illustrated. 変形例に係る補助装置の適用場面の一例を模式的に例示する。An example of the application scene of the auxiliary device according to the modified example is schematically illustrated. 変形例に係る補助装置の適用場面の一例を模式的に例示する。An example of the application scene of the auxiliary device according to the modified example is schematically illustrated. 変形例に係る補助装置の適用場面の一例を模式的に例示する。An example of the application scene of the auxiliary device according to the modified example is schematically illustrated.
　以下、本発明の一側面に係る実施の形態（以下、「本実施形態」とも表記する）を、図面に基づいて説明する。 Hereinafter, an embodiment according to one aspect of the present invention (hereinafter, also referred to as “the present embodiment”) will be described with reference to the drawings.
　〔実施形態１〕
　§１　適用例
　まず、図１及び図２を用いて、本発明が適用される場面の一例について説明する。図１は、本実施形態に係る補助装置１０の適用場面の一例を模式的に例示する。また、図１は、補助装置１０を連結したＰＬＣ１全体を示している。図２は、本実施形態に係る補助装置１０のハードウェア構成の一例を模式的に例示する。 [Embodiment 1]
§1 Application example First, an example of a situation in which the present invention is applied will be described with reference to FIGS. 1 and 2. FIG. 1 schematically illustrates an example of an application scene of the auxiliary device 10 according to the present embodiment. Further, FIG. 1 shows the entire PLC1 to which the auxiliary device 10 is connected. FIG. 2 schematically illustrates an example of the hardware configuration of the auxiliary device 10 according to the present embodiment.
　図１に示すようにＰＬＣ１は、電源ユニット１２、補助装置１０、ＣＰＵユニット１４、Ｉ／Ｏコントロールユニット１６、１又は複数の構成ユニット１８、及びエンドカバー（エンドプレート）２０を備える。ここで、構成ユニット１８には、例えば基本Ｉ／Ｏユニット、高機能Ｉ／Ｏユニット及びＣＰＵ高機能ユニットが含まれる。また、隣接する上記ユニット等は、互いに連結されて電力および信号の伝送を行う。 As shown in FIG. 1, the PLC 1 includes a power supply unit 12, an auxiliary device 10, a CPU unit 14, an I / O control unit 16, one or a plurality of constituent units 18, and an end cover (end plate) 20. Here, the constituent unit 18 includes, for example, a basic I / O unit, a high-performance I / O unit, and a CPU high-performance unit. Further, the adjacent units and the like are connected to each other to transmit electric power and signals.
　補助装置１０は、複数のユニットが連結されてＰＬＣが構成される、前記ユニットとしての補助装置であって、電源ユニット１２を交換する場合等において、外部電源３２等の外部から受け入れた電力を、ＰＬＣ１の他のユニットに供給可能とするための装置である。一態様において、補助装置１０は、図１に示すように電源ユニット１２とＣＰＵユニット１４との間に連結される構成である。上記構成において、ＰＬＣ１が電源ユニット１２の電力で動作する場合、補助装置１０は、電源ユニット１２から供給された電力を、隣接するＣＰＵユニット１４に供給する。 The auxiliary device 10 is an auxiliary device as the unit in which a plurality of units are connected to form a PLC, and when the power supply unit 12 is replaced or the like, the electric power received from the outside such as the external power supply 32 is received. It is a device for making it possible to supply to other units of PLC1. In one aspect, the auxiliary device 10 is configured to be connected between the power supply unit 12 and the CPU unit 14 as shown in FIG. In the above configuration, when the PLC 1 operates with the power of the power supply unit 12, the auxiliary device 10 supplies the power supplied from the power supply unit 12 to the adjacent CPU unit 14.
　図２に示すように、補助装置１０は、補助装置１０が別のユニットに連結されたときに、前記別のユニットである第１のユニットとの間での電力伝送をする第１接続部２２と、第１接続部２２に電気的に接続され、補助装置１０が更に別の第２のユニットに連結されたときに、前記更に別のユニットである第２のユニットとの間での電力伝送をする第２接続部２４と、外部から電力を受け入れるための第３接続部２６であって、第１接続部２２及び第２接続部２４に向けて、受け入れた電力を供給し得る第３接続部２６とを備える。 As shown in FIG. 2, the auxiliary device 10 is a first connection unit 22 that transmits power to and from the first unit, which is the other unit, when the auxiliary device 10 is connected to another unit. And when it is electrically connected to the first connection unit 22 and the auxiliary device 10 is connected to yet another second unit, power transmission with the second unit which is the still another unit. A third connection unit 24 for receiving power from the outside, and a third connection unit 26 capable of supplying the received power to the first connection unit 22 and the second connection unit 24. A unit 26 is provided.
　従来、電源ユニット及びＣＰＵユニット等の独立した機器を互いに連結することによって構成されるＰＬＣ（Programmable Logic Controller、プログラマブルロジックコントローラ）においては、電力の供給元である電源ユニットを交換する場合、ＰＬＣを含むシステムを停止させる必要があった。本実施形態に係る補助装置は、ＰＬＣが備えるユニット間に連結され、上記の場合において、ＰＬＣを含むシステムを停止させることなく電源ユニットの交換を可能とする。 Conventionally, in a PLC (Programmable Logic Controller) configured by connecting independent devices such as a power supply unit and a CPU unit to each other, when the power supply unit that is a power supply source is replaced, the PLC is included. The system had to be shut down. The auxiliary device according to the present embodiment is connected between the units included in the PLC, and in the above case, the power supply unit can be replaced without stopping the system including the PLC.
　§２　構成例
　次に、図２を用いて、本実施形態に係る補助装置１０のハードウェア構成の一例について詳細に説明する。 §2 Configuration example Next, an example of the hardware configuration of the auxiliary device 10 according to the present embodiment will be described in detail with reference to FIG.
　図２に示すように、補助装置１０は、ＰＬＣ１における第１のユニットと第２のユニットとの間において、各ユニットの接続部３４及び３６を介して連結される。一例として、第１のユニットが電源ユニット１２であり、第２のユニットがＣＰＵユニット１４であるものとして説明するが、これに限定されず、補助装置１０が他のユニット間において連結され、第１のユニットをＣＰＵユニット１４とし、第２のユニットをＩ／Ｏコントロールユニット１６としてもよい。ただし、以下の説明において、補助装置１０に隣接するユニットのうち、電源ユニット１２に近い側のユニットを第１のユニットとし、遠い側のユニットを第２のユニットとして説明する。 As shown in FIG. 2, the auxiliary device 10 is connected between the first unit and the second unit in PLC1 via the connection portions 34 and 36 of the respective units. As an example, the first unit will be described as the power supply unit 12 and the second unit will be the CPU unit 14, but the present invention is not limited to this, and the auxiliary device 10 is connected between the other units, and the first unit is used. The unit may be the CPU unit 14, and the second unit may be the I / O control unit 16. However, in the following description, among the units adjacent to the auxiliary device 10, the unit closer to the power supply unit 12 will be referred to as the first unit, and the unit farther from the power supply unit 12 will be referred to as the second unit.
　補助装置１０は、第１接続部２２、第２接続部２４、第３接続部２６、第４接続部２８及び第５接続部３０を備えている。第１接続部２２は、補助装置１０が第１のユニットに連結されたときに、第１のユニットとの間での電力伝送を行うためのコネクタである。 The auxiliary device 10 includes a first connection unit 22, a second connection unit 24, a third connection unit 26, a fourth connection unit 28, and a fifth connection unit 30. The first connection unit 22 is a connector for transmitting power to and from the first unit when the auxiliary device 10 is connected to the first unit.
　第２接続部２４は、補助装置１０が第２のユニットに連結されたときに、第２のユニットとの間で電力伝送を行うためのコネクタである。第１接続部２２と第２接続部２４とは、電気的に接続されている。よって、補助装置１０の両側に、第１のユニットと第２のユニットとが連結されたときに、第１のユニットと第２のユニットとの間での電力伝送が可能となる。例えば第２接続部２４は、ＣＰＵユニット１４に接続されたときに、第１接続部２２又は第３接続部２６から供給された電力を、ＣＰＵユニット１４に供給する。 The second connection unit 24 is a connector for transmitting power to and from the second unit when the auxiliary device 10 is connected to the second unit. The first connection portion 22 and the second connection portion 24 are electrically connected to each other. Therefore, when the first unit and the second unit are connected to both sides of the auxiliary device 10, power can be transmitted between the first unit and the second unit. For example, the second connection unit 24 supplies the power supplied from the first connection unit 22 or the third connection unit 26 to the CPU unit 14 when it is connected to the CPU unit 14.
　第３接続部２６は、外部から供給された電力を受け付ける。また、第３接続部２６は、第１接続部２２及び第２接続部２４の少なくとも何れかに向けて、外部から受け付けた電力を供給し得る。また、例えば第３接続部２６に対しては、ＰＬＣ１を構成する電源ユニット１２とは異なる外部電源３２が電力を供給する。 The third connection unit 26 receives the electric power supplied from the outside. Further, the third connection unit 26 may supply electric power received from the outside toward at least one of the first connection unit 22 and the second connection unit 24. Further, for example, an external power supply 32 different from the power supply unit 12 constituting the PLC 1 supplies electric power to the third connection unit 26.
　補助装置１０は、ＰＬＣ１に電源ユニット１２が連結されている場合においては、第１のユニットから第１接続部２２に供給された電力を、第２接続部２４を介して第２のユニットに供給できる。一方で補助装置１０は、ＰＬＣ１に電源ユニット１２が連結されておらず、外部電源３２が接続されている場合においては、外部電源３２から第３接続部２６に供給された電力を、第２接続部２４を介して第２のユニットに供給し、且つ第１のユニットが電源ユニット１２でないときには、当該電力を、第１接続部２２を介して第１のユニットに供給できる。 When the power supply unit 12 is connected to the PLC 1, the auxiliary device 10 supplies the power supplied from the first unit to the first connection unit 22 to the second unit via the second connection unit 24. can. On the other hand, in the auxiliary device 10, when the power supply unit 12 is not connected to the PLC1 and the external power supply 32 is connected, the power supplied from the external power supply 32 to the third connection portion 26 is connected to the second connection. When the power is supplied to the second unit via the unit 24 and the first unit is not the power supply unit 12, the power can be supplied to the first unit via the first connection unit 22.
　換言すると、ＰＬＣ１内に電源ユニット１２が連結されている場合においては、第１接続部２２は、第１のユニットから受け入れた電力を第２接続部２４に向けて供給し、且つ第３接続部２６は、外部からの電力を、ＰＬＣ１において消費されるものとして受け入れず、ＰＬＣ１内に電源ユニット１２が連結されていない場合においては、第３接続部２６は、第１接続部２２及び第２接続部２４に向けて、外部から受け入れた電力を供給し得る。 In other words, when the power supply unit 12 is connected to the PLC 1, the first connection unit 22 supplies the power received from the first unit toward the second connection unit 24, and the third connection unit 22. The 26 does not accept the power from the outside as being consumed in the PLC 1, and when the power supply unit 12 is not connected in the PLC 1, the third connection portion 26 is the first connection portion 22 and the second connection. The electric power received from the outside can be supplied to the unit 24.
　図２の信号ライン３８とは、アドレスやその他のデータを示す信号の伝送路を示している。即ち、ＰＬＣ１を構成する各ユニット間においては、信号ライン３８を介して信号の伝送が行われる。また、第４接続部２８は、補助装置１０が第１のユニット及び第２のユニットに接続されたときに、第１のユニットとの間で信号授受をするためのコネクタである。第５接続部３０は、上記のときに、第２のユニットとの間で信号授受をするためのコネクタである。 The signal line 38 in FIG. 2 indicates a signal transmission path indicating an address or other data. That is, signals are transmitted between the units constituting the PLC 1 via the signal line 38. Further, the fourth connection unit 28 is a connector for transmitting and receiving signals to and from the first unit when the auxiliary device 10 is connected to the first unit and the second unit. The fifth connection unit 30 is a connector for transmitting and receiving signals to and from the second unit at the above time.
　なお、第４接続部２８は、第１接続部２２と一体化したコネクタとして実現されてもよいし、別のコネクタとして実現されてもよい。また、第５接続部３０は、第２接続部２４と一体化したコネクタとして実現されてもよいし、別のコネクタとして実現されてもよい。 The fourth connection portion 28 may be realized as a connector integrated with the first connection portion 22, or may be realized as another connector. Further, the fifth connection portion 30 may be realized as a connector integrated with the second connection portion 24, or may be realized as another connector.
　また、ＣＰＵユニット１４は、接続部３６、及び隣接するＩ／Ｏコントロールユニット１６に接続される接続部３７の他に、直流電力の電圧を変更する直流変圧部４０、及びＣＰＵユニット１４全体を統括する制御回路４２を備えている。直流変圧部４０は、供給された直流電力を、制御回路の仕様に合わせて好適に変圧した上で、制御回路４２に供給する。 Further, the CPU unit 14 controls the connection unit 36, the connection unit 37 connected to the adjacent I / O control unit 16, the DC transformer unit 40 that changes the voltage of DC power, and the entire CPU unit 14. The control circuit 42 is provided. The DC transformer unit 40 appropriately transforms the supplied DC power according to the specifications of the control circuit, and then supplies the supplied DC power to the control circuit 42.
　§３　手順例
　次に、図３を用いて、本実施形態に係る補助装置１０が連結されたＰＬＣ１を停止させることなく、管理者が電源ユニット１２を交換する場合の手順例を説明する。図３は、上記手順例を示すフローチャートである。また、図３のフローチャートに示す手順の開始時点において、補助装置１０の第１接続部２２には第１のユニットが接続され、第２接続部２４には第２のユニットが接続され、ＰＬＣ１が稼動しているものとする。なお、以下で説明する処理手順は一例に過ぎず、各処理は可能な限り変更されてよい。また、以下で説明する処理手順について、実施の形態に応じて、適宜、ステップの省略、置換、及び追加が可能である。また、以降の実施形態においても同様である。 §3 Procedure example Next, a procedure example in which the administrator replaces the power supply unit 12 without stopping the PLC1 to which the auxiliary device 10 according to the present embodiment is connected will be described with reference to FIG. FIG. 3 is a flowchart showing the above procedure example. Further, at the start of the procedure shown in the flowchart of FIG. 3, the first unit is connected to the first connection portion 22 of the auxiliary device 10, the second unit is connected to the second connection portion 24, and the PLC1 is connected. It is assumed that it is in operation. The processing procedure described below is only an example, and each processing may be changed as much as possible. Further, with respect to the processing procedure described below, steps can be omitted, replaced, and added as appropriate according to the embodiment. The same applies to the subsequent embodiments.
　（ステップＳ１０１）
　ステップＳ１０１では、管理者は、所定の電圧を出力する外部電源３２を、補助装置１０の第３接続部２６に接続し、外部電源３２からＰＬＣ１への電力供給が開始させる。 (Step S101)
In step S101, the administrator connects the external power supply 32 that outputs a predetermined voltage to the third connection unit 26 of the auxiliary device 10, and starts the power supply from the external power supply 32 to the PLC1.
　（ステップＳ１０２）
　ステップＳ１０２では、管理者は、電源ユニット１２に対する操作によって、電源ユニット１２からＰＬＣ１への電力供給を停止させる。 (Step S102)
In step S102, the administrator stops the power supply from the power supply unit 12 to the PLC 1 by operating the power supply unit 12.
　（ステップＳ１０３）
　ステップＳ１０３では、管理者は、ＰＬＣ１から電源ユニット１２を取り外す。 (Step S103)
In step S103, the administrator removes the power supply unit 12 from the PLC1.
　（ステップＳ１０４）
　ステップＳ１０４では、管理者は、ＰＬＣ１に新たな電源ユニット１２を取り付ける。 (Step S104)
In step S104, the administrator attaches a new power supply unit 12 to the PLC1.
　（ステップＳ１０５）
　ステップＳ１０５では、管理者は、ＰＬＣ１に対する操作によって、電源ユニット１２からＰＬＣ１への電力供給を開始させる。 (Step S105)
In step S105, the administrator starts the power supply from the power supply unit 12 to the PLC1 by operating the PLC1.
　（ステップＳ１０６）
　ステップＳ１０６では、管理者は、外部電源３２に対する操作によって、外部電源３２からＰＬＣ１への電力供給を停止させる。 (Step S106)
In step S106, the administrator stops the power supply from the external power supply 32 to the PLC 1 by operating the external power supply 32.
　（ステップＳ１０７）
　ステップＳ１０７では、管理者は、第３接続部２６から外部電源３２を取り外す。 (Step S107)
In step S107, the administrator removes the external power supply 32 from the third connection portion 26.
　以上、管理者が電源ユニット１２を交換する場合の手順例について説明した。本実施形態の構成によれば、ＰＬＣ１に常に電源ユニット１２又は外部電源３２の電力が供給されるため、ＰＬＣ１を含むシステムを停止させることなく電源ユニット１２の交換が可能となる。 The procedure example when the administrator replaces the power supply unit 12 has been described above. According to the configuration of the present embodiment, since the power of the power supply unit 12 or the external power supply 32 is always supplied to the PLC 1, the power supply unit 12 can be replaced without stopping the system including the PLC 1.
　〔実施形態２〕
　本発明の第２の実施形態について、以下に説明する。なお、説明の便宜上、上記実施形態にて説明した部材と同じ機能を有する部材については、同じ符号を付記し、重複する説明を繰り返さない。本実施形態においては、補助装置１０が第３接続部２６から受け入れる電力の品質を監視する構成の一例について説明する。ここで、電力の品質の監視とは、対象となる電力の品質がＰＬＣ１を動作させるための一定の基準を満たしているか否かを継続的に評価することを意味する。 [Embodiment 2]
A second embodiment of the present invention will be described below. For convenience of explanation, the same reference numerals are given to the members having the same functions as the members described in the above-described embodiment, and duplicate explanations will not be repeated. In the present embodiment, an example of a configuration for monitoring the quality of the electric power received by the auxiliary device 10 from the third connection unit 26 will be described. Here, monitoring the quality of electric power means continuously evaluating whether or not the quality of electric power of interest meets a certain standard for operating the PLC1.
　図４は、本実施形態に係る補助装置１０のハードウェア構成の一例を模式的に例示する。図４に示すように補助装置１０は、図２に示す補助装置１０と比較して、電源監視部４４を更に備える構成である。 FIG. 4 schematically illustrates an example of the hardware configuration of the auxiliary device 10 according to the present embodiment. As shown in FIG. 4, the auxiliary device 10 is configured to further include a power supply monitoring unit 44 as compared with the auxiliary device 10 shown in FIG.
　電源監視部４４は、第３接続部２６から受け入れる電力の品質を監視する。電源監視部４４は、例えば外部電源３２から供給される電力の電圧を継続的に評価することによって電力の品質を監視する。 The power supply monitoring unit 44 monitors the quality of the power received from the third connection unit 26. The power supply monitoring unit 44 monitors the quality of electric power, for example, by continuously evaluating the voltage of the electric power supplied from the external power source 32.
　また、電源監視部４４は、第３接続部２６から受け入れる電力の品質が基準を満たさないと判定した場合、例えばその旨を示す情報を、信号ライン３８を介してＣＰＵユニット１４に送信してＣＰＵユニット１４が所定の処理を行う構成であってもよい。 When the power supply monitoring unit 44 determines that the quality of the electric power received from the third connection unit 26 does not satisfy the standard, for example, the power supply monitoring unit 44 transmits information indicating that fact to the CPU unit 14 via the signal line 38 to the CPU. The unit 14 may be configured to perform a predetermined process.
　次に、電源監視部４４の動作例について説明する。以下、第３接続部２６に、外部電源３２が接続された場合を例に挙げて説明する。 Next, an operation example of the power supply monitoring unit 44 will be described. Hereinafter, a case where an external power supply 32 is connected to the third connection unit 26 will be described as an example.
　第１のユニットと第２のユニットとの間での電力伝送が行われている場合において、第３接続部２６に外部電源３２が接続されたとき、電源監視部４４は、第３接続部２６から受け入れる電力の品質を監視する。電源監視部４４は、上記電力の品質が一定の基準を満たしていない場合に、外部から受け入れる電力の品質が基準値外であることを示す情報を、信号ライン３８を介してＣＰＵユニット１４に送信する。続いてＣＰＵユニット１４は、上記情報を管理者に通知させるために出力する処理を行う。あるいは、補助装置１０が警告ランプ等の報知機能を備えており、外部から受け入れる電力の品質が基準値外であることを警告するものであってもよい。 In the case where power transmission is performed between the first unit and the second unit, when the external power supply 32 is connected to the third connection unit 26, the power supply monitoring unit 44 transfers the third connection unit 26. Monitor the quality of power received from. The power supply monitoring unit 44 transmits information indicating that the quality of the electric power received from the outside is out of the standard value to the CPU unit 14 via the signal line 38 when the quality of the electric power does not meet a certain standard. do. Subsequently, the CPU unit 14 performs a process of outputting the above information in order to notify the administrator. Alternatively, the auxiliary device 10 may be provided with a notification function such as a warning lamp to warn that the quality of the electric power received from the outside is out of the reference value.
　上記の構成によれば、例えば実施形態１のステップＳ１０２の手順において、ＰＬＣ１における電力の供給元を電源ユニット１２から外部電源３２に切り替える前に、管理者は、第３接続部２６に供給される電力の品質がＰＬＣ１を動作させるための基準を満たしているかを把握することができる。上記電力の品質が基準値外である場合にはＰＬＣ１における電力の供給元を電源ユニット１２から外部電源３２に切り替えないことにより、安定的な電力供給に寄与する。 According to the above configuration, for example, in the procedure of step S102 of the first embodiment, the administrator is supplied to the third connection unit 26 before switching the power supply source in the PLC 1 from the power supply unit 12 to the external power supply 32. It is possible to grasp whether the quality of power meets the criteria for operating the PLC1. When the power quality is out of the reference value, the power supply source in the PLC 1 is not switched from the power supply unit 12 to the external power supply 32, thereby contributing to stable power supply.
　また、電力の品質とは、例えば、ノイズの混入の状態であってよい。ノイズを多く含む外部電源３２が第３接続部２６に接続され電力の供給がなされた場合に、ＰＬＣ１が故障する怖れがあるが、実施形態２の補助装置１０によれば、そのような事態の発生を抑止できる。 Further, the quality of electric power may be, for example, a state in which noise is mixed. When the external power supply 32 containing a lot of noise is connected to the third connection portion 26 and the electric power is supplied, there is a possibility that the PLC 1 may fail. However, according to the auxiliary device 10 of the second embodiment, such a situation. Can be suppressed.
　〔実施形態１及び２の変形例〕
　上述したように、補助装置１０がＰＬＣ１内において連結される位置は、電源ユニット１２とＣＰＵユニット１４との間に限定されない。図５～図７は、以下の各位置に連結された補助装置１０の適用場面の一例を模式的に例示する。
・ＣＰＵユニット１４とＩ／Ｏコントロールユニット１６との間（図５）
・構成ユニット（Ｉ／Ｏユニット等）１８と他の構成ユニット１８との間（図６）
・構成ユニット１８とエンドカバー２０との間（図７）
　また、例えば補助装置１０は、エンドカバー２０の代わりとして終端のＩ／Ｏユニットの接続部に第１接続部２２を接続してＰＬＣ１への電力供給が可能な構成であってもよい。 [Variations of Embodiments 1 and 2]
As described above, the position where the auxiliary device 10 is connected in the PLC 1 is not limited to the position between the power supply unit 12 and the CPU unit 14. 5 to 7 schematically illustrate an example of an application scene of the auxiliary device 10 connected to each of the following positions.
-Between the CPU unit 14 and the I / O control unit 16 (FIG. 5)
-Between the constituent unit (I / O unit, etc.) 18 and the other constituent units 18 (FIG. 6)
-Between the constituent unit 18 and the end cover 20 (FIG. 7)
Further, for example, the auxiliary device 10 may have a configuration in which the first connection portion 22 is connected to the connection portion of the terminal I / O unit instead of the end cover 20 so that power can be supplied to the PLC 1.
　また、図５は、第１のユニットが（第１の）電源ユニットであり、第２のユニットがＣＰＵユニットであってもよいことを示している。 Further, FIG. 5 shows that the first unit may be a (first) power supply unit and the second unit may be a CPU unit.
　また、図６は、第１のユニットがＣＰＵユニットであり、第２のユニットがＩ／Ｏコントロールユニットであってもよいことを示している。 Further, FIG. 6 shows that the first unit may be a CPU unit and the second unit may be an I / O control unit.
　また、図７は、第１のユニットは、第１の構成ユニットであり、第２のユニットは、第２の構成ユニットであってもよいことを示している。 Further, FIG. 7 shows that the first unit may be the first constituent unit and the second unit may be the second constituent unit.
　また、１つの補助装置１０が外部から電力を受け入れる接続部の個数は、単数であることに限定されず、複数である構成であってもよい。 Further, the number of connection portions in which one auxiliary device 10 receives electric power from the outside is not limited to a single number, and may be a plurality of connections.
　また、外部電源３２は、交流電源に接続されて交流電圧から変換された直流電圧を出力する構成であってもよいし、ＵＳＢ端子等によって接続されるモバイルバッテリーとして実現される構成であってもよい。 Further, the external power supply 32 may be configured to be connected to an AC power supply and output a DC voltage converted from the AC voltage, or may be configured to be realized as a mobile battery connected by a USB terminal or the like. good.
　〔まとめ〕
　本発明の一側面に係る補助装置（１０）は、複数のユニットが連結されてプログラマブルロジックコントローラが構成される、前記ユニットとしての補助装置であって、当該補助装置が別のユニットに連結されたときに、前記別のユニットである第１のユニットとの間での電力伝送をする第１接続部（２２）と、前記第１接続部に電気的に接続され、当該補助装置が更に別の第２のユニットに連結されたときに、前記更に別のユニットである第２のユニットとの間での電力伝送をする第２接続部（２４）と、外部から電力を受け入れるための第３接続部であって、前記第１接続部及び前記第２接続部に向けて、受け入れた電力を供給し得る第３接続部（２６）とを備える。上記構成では、第１接続部及び第２接続部によって、第１のユニットと第２のユニットとの間における電力の伝送を実現し、更に第３接続部を介して外部から受け入れた電力を第１のユニット及び第２のユニットの少なくとも何れかに供給することができる。これにより、ＰＬＣを含むシステムを停止させることなく電源ユニットの交換が可能となる。 〔summary〕
The auxiliary device (10) according to one aspect of the present invention is an auxiliary device as the unit in which a plurality of units are connected to form a programmable logic controller, and the auxiliary device is connected to another unit. Occasionally, a first connection unit (22) that transmits power to and from the first unit, which is the other unit, and the first connection unit are electrically connected, and the auxiliary device is yet another. A second connection unit (24) that transmits power to and from the second unit, which is another unit when connected to the second unit, and a third connection for receiving power from the outside. The unit includes a third connection unit (26) capable of supplying the received power toward the first connection unit and the second connection unit. In the above configuration, the first connection portion and the second connection portion realize the transmission of electric power between the first unit and the second unit, and further, the electric power received from the outside through the third connection portion is the second. It can be supplied to at least one of the first unit and the second unit. This makes it possible to replace the power supply unit without stopping the system including the PLC.
　上記一側面に係る補助装置において、前記第３接続部から受け入れる電力の品質を監視する電源監視部（４４）を更に備えていてもよい。当該構成によれば、例えば第３接続部に供給される電力の品質がＰＬＣを動作させるための基準を満たしていない場合にその旨を管理者に通知することが可能となる。 The auxiliary device according to the above aspect may further include a power supply monitoring unit (44) that monitors the quality of the power received from the third connection unit. According to this configuration, for example, when the quality of the electric power supplied to the third connection portion does not meet the standard for operating the PLC, it is possible to notify the administrator to that effect.
　上記一側面に係る補助装置において、前記第１のユニットは、電源ユニット（１２）であり、前記第２のユニットは、ＣＰＵユニット（１４）であってもよい。当該構成によれば、電源ユニットとＣＰＵユニットとの間における電力の伝送を実現した上で、更に第３接続部を介して外部から受け入れた電力をＣＰＵユニットに供給することができる。 In the auxiliary device according to the one aspect, the first unit may be a power supply unit (12), and the second unit may be a CPU unit (14). According to this configuration, it is possible to realize the transmission of electric power between the power supply unit and the CPU unit, and then supply the electric power received from the outside to the CPU unit via the third connection unit.
　上記一側面に係る補助装置において、前記第１のユニットは、ＣＰＵユニット（１４）であり、前記第２のユニットは、Ｉ／Ｏコントロールユニット（１６）であってもよい。当該構成によれば、ＣＰＵユニットとＩ／Ｏコントロールユニットとの間における電力の伝送を実現した上で、更に第３接続部を介して外部から受け入れた電力をＣＰＵユニット及びＩ／Ｏコントロールユニットに供給することができる。 In the auxiliary device according to the one aspect, the first unit may be a CPU unit (14), and the second unit may be an I / O control unit (16). According to this configuration, after realizing the transmission of electric power between the CPU unit and the I / O control unit, the electric power received from the outside via the third connection unit is further transferred to the CPU unit and the I / O control unit. Can be supplied.
　上記一側面に係る補助装置において、前記第１のユニットは、第１の構成ユニット（１８）であり、前記第２のユニットは、第２の構成ユニット（１８）であってもよい。当該構成によれば、第１の構成ユニットと第２の構成ユニットとの間における電力の伝送を実現した上で、更に第３接続部を介して外部から受け入れた電力を第１の構成ユニット及び第２の構成ユニットの少なくとも何れかに供給することができる。 In the auxiliary device according to the one aspect, the first unit may be the first constituent unit (18), and the second unit may be the second constituent unit (18). According to this configuration, after realizing the transmission of electric power between the first constituent unit and the second constituent unit, the electric power received from the outside through the third connecting portion is further transferred to the first constituent unit and the first constituent unit and the second constituent unit. It can be supplied to at least one of the second constituent units.
　上記一側面に係る補助装置において、当該補助装置が前記第１のユニット及び前記第２のユニットに連結されたときに、前記第１のユニットとの間での信号授受をする第４接続部（２８）と、前記第２のユニットとの間での信号授受をする第５接続部（３０）と、を更に備え、前記第１のユニットと前記第２のユニットとの間における信号の伝送を仲介してもよい。当該構成によれば、例えばＣＰＵユニットを起点としてＰＬＣ全体における信号の伝送が可能となる。 In the auxiliary device according to the one aspect, when the auxiliary device is connected to the first unit and the second unit, a fourth connection unit (a fourth connection unit) that exchanges signals with the first unit. 28) and a fifth connection unit (30) for exchanging signals between the second unit and the second unit are further provided to transmit signals between the first unit and the second unit. You may mediate. According to this configuration, for example, a signal can be transmitted in the entire PLC starting from the CPU unit.
　〔ソフトウェアによる実現例〕
　補助装置１０の制御ブロック（特に電源監視部４４）は、集積回路（ＩＣチップ）等に形成された論理回路（ハードウェア）によって実現してもよいし、ソフトウェアによって実現してもよい。 [Example of implementation by software]
The control block (particularly, the power supply monitoring unit 44) of the auxiliary device 10 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software.
　後者の場合、補助装置１０は、各機能を実現するソフトウェアであるプログラムの命令を実行するコンピュータを備えている。このコンピュータは、例えば１つ以上のプロセッサを備えていると共に、上記プログラムを記憶したコンピュータ読み取り可能な記録媒体を備えている。そして、上記コンピュータにおいて、上記プロセッサが上記プログラムを上記記録媒体から読み取って実行することにより、本発明の目的が達成される。上記プロセッサとしては、例えばＣＰＵ（Central Processing Unit）を用いることができる。上記記録媒体としては、「一時的でない有形の媒体」、例えば、ＲＯＭ（Read Only Memory）等の他、テープ、ディスク、カード、半導体メモリ、プログラマブルな論理回路などを用いることができる。また、上記プログラムを展開するＲＡＭ（Random Access Memory）などをさらに備えていてもよい。また、上記プログラムは、該プログラムを伝送可能な任意の伝送媒体（通信ネットワークや放送波等）を介して上記コンピュータに供給されてもよい。なお、本発明の一態様は、上記プログラムが電子的な伝送によって具現化された、搬送波に埋め込まれたデータ信号の形態でも実現され得る。 In the latter case, the auxiliary device 10 includes a computer that executes instructions of a program that is software that realizes each function. The computer includes, for example, one or more processors and a computer-readable recording medium that stores the program. Then, in the computer, the processor reads the program from the recording medium and executes it, thereby achieving the object of the present invention. As the processor, for example, a CPU (Central Processing Unit) can be used. As the recording medium, a “non-temporary tangible medium”, for example, a ROM (Read Only Memory) or the like, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. Further, a RAM (RandomAccessMemory) for expanding the above program may be further provided. Further, the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. It should be noted that one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the above program is embodied by electronic transmission.
　本発明は上述した各実施形態に限定されるものではなく、請求項に示した範囲で種々の変更が可能であり、異なる実施形態にそれぞれ開示された技術的手段を適宜組み合わせて得られる実施形態についても本発明の技術的範囲に含まれる。 The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.
１　ＰＬＣ
１０　補助装置
１２　電源ユニット
１４　ＣＰＵユニット
１６　Ｉ／Ｏコントロールユニット
１８　構成ユニット
２０　エンドカバー
２２　第１接続部
２４　第２接続部
２６　第３接続部
２８　第４接続部
３０　第５接続部
４４　電源監視部 1 PLC
10 Auxiliary device 12 Power supply unit 14 CPU unit 16 I / O control unit 18 Configuration unit 20 End cover 22 1st connection unit 24 2nd connection unit 26 3rd connection unit 28 4th connection unit 30 5th connection unit 44 Power supply monitoring unit

Claims (6)

  1. 　複数のユニットが連結されてプログラマブルロジックコントローラが構成される、前記ユニットとしての補助装置であって、
    　当該補助装置が別のユニットに連結されたときに、前記別のユニットである第１のユニットとの間での電力伝送をする第１接続部と、
    　前記第１接続部に電気的に接続され、当該補助装置が更に別の第２のユニットに連結されたときに、前記更に別のユニットである第２のユニットとの間での電力伝送をする第２接続部と、
    　外部から電力を受け入れるための第３接続部であって、前記第１接続部及び前記第２接続部に向けて、受け入れた電力を供給し得る第３接続部と
    を備える補助装置。     It is an auxiliary device as the unit in which a plurality of units are connected to form a programmable logic controller.
    When the auxiliary device is connected to another unit, a first connection unit that transmits power to and from the first unit, which is the other unit, and
    When it is electrically connected to the first connection portion and the auxiliary device is connected to yet another second unit, power is transmitted to and from the second unit which is still another unit. With the second connection
    An auxiliary device including a third connection portion for receiving electric power from the outside, and a third connection portion capable of supplying the received power toward the first connection portion and the second connection portion.
  2. 　前記第３接続部から受け入れる電力の品質を監視する電源監視部を更に備える
    請求項１に記載の補助装置。     The auxiliary device according to claim 1, further comprising a power supply monitoring unit that monitors the quality of electric power received from the third connection unit.
  3. 　前記第１のユニットは、電源ユニットであり、
    　前記第２のユニットは、ＣＰＵユニットである
    請求項１又は２に記載の補助装置。     The first unit is a power supply unit.
    The auxiliary device according to claim 1 or 2, wherein the second unit is a CPU unit.
  4. 　前記第１のユニットは、ＣＰＵユニットであり、
    　前記第２のユニットは、Ｉ／Ｏコントロールユニットである
    請求項１又は２に記載の補助装置。     The first unit is a CPU unit.
    The auxiliary device according to claim 1 or 2, wherein the second unit is an I / O control unit.
  5. 　前記第１のユニットは、第１の構成ユニットであり、
    　前記第２のユニットは、第２の構成ユニットである
    請求項１又は２に記載の補助装置。     The first unit is the first constituent unit, and is
    The auxiliary device according to claim 1 or 2, wherein the second unit is a second constituent unit.
  6. 　当該補助装置が前記第１のユニット及び前記第２のユニットに連結されたときに、前記第１のユニットとの間での信号授受をする第４接続部と、前記第２のユニットとの間での信号授受をする第５接続部と、を更に備え、前記第１のユニットと前記第２のユニットとの間における信号の伝送を仲介する
    請求項１から５までの何れか１項に記載の補助装置。     When the auxiliary device is connected to the first unit and the second unit, between the fourth connection unit that exchanges signals with the first unit and the second unit. The fifth aspect of claim 1 to 5, further comprising a fifth connection portion for transmitting and receiving signals in the above, and mediating signal transmission between the first unit and the second unit. Auxiliary device.
PCT/JP2021/008323 2021-01-08 2021-03-04 Auxiliary device WO2022149292A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017167919A (en) * 2016-03-17 2017-09-21 日本電気株式会社 Server device, power supply control method, program, external power supply device, and server system
JP2019159702A (en) * 2018-03-12 2019-09-19 オムロン株式会社 Controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017167919A (en) * 2016-03-17 2017-09-21 日本電気株式会社 Server device, power supply control method, program, external power supply device, and server system
JP2019159702A (en) * 2018-03-12 2019-09-19 オムロン株式会社 Controller

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