JP4844308B2 - Control device replacement method - Google Patents

Control device replacement method Download PDF

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JP4844308B2
JP4844308B2 JP2006242847A JP2006242847A JP4844308B2 JP 4844308 B2 JP4844308 B2 JP 4844308B2 JP 2006242847 A JP2006242847 A JP 2006242847A JP 2006242847 A JP2006242847 A JP 2006242847A JP 4844308 B2 JP4844308 B2 JP 4844308B2
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control device
connection
adapter unit
connection portion
new control
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JP2008066112A (en
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幸司 小川
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Mitsubishi Materials Techno Corp
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Description

本発明は、接続部を介して外部機器と接続された既設制御装置を接続部の接続形式が異なる新規制御装置に更新する際の制御装置の置き換え工法に関するものである。   The present invention relates to a method for replacing a control device when an existing control device connected to an external device via a connection unit is updated to a new control device having a different connection type of the connection unit.

従来より、端子部やコネクタ等、複数の接続端子を有する接続部を介して外部機器が接続された制御装置を、例えば、小形化、高性能化された新規の制御装置に置き換えることが行われている。
この場合、既設制御装置と新規制御装置とで接続部の接続形式（例えば、コネクタの種類、端子数や端子の配列等）が全く同一であれば、既設制御装置の接続部をそのまま新規制御装置に差し換えることで簡単に置き換え可能であるが、既設制御装置と新規制御装置とで接続部の接続形式が相違していると、上述のような単純な置き換えは不可能であり、このような場合は、現場において以下のような作業が行われていた。 Conventionally, a control device to which an external device is connected via a connection portion having a plurality of connection terminals such as a terminal portion and a connector is replaced with, for example, a new control device having a smaller size and higher performance. ing.
In this case, if the connection type (for example, connector type, number of terminals, terminal arrangement, etc.) of the connection unit is exactly the same between the existing control device and the new control device, the connection unit of the existing control device is used as it is. Can be easily replaced, but if the connection type of the connection part is different between the existing control device and the new control device, the simple replacement as described above is impossible. In this case, the following work was performed on site.

すなわち、先ず、既設制御装置の各接続部の各接続端子に接続されている外部機器側からの配線を全て外して、既設制御装置を収納用のラックから取り外す。
次に、既設制御装置に代えて新規制御装置をラックに取り付ける。
次に、外した多数の配線を新規制御装置の対応する接続部の接続端子に１本ずつ配線位置を確認しながら接続していくという作業である。 That is, first, all the wiring from the external device side connected to each connection terminal of each connection portion of the existing control device is removed, and the existing control device is removed from the storage rack.
Next, a new control device is attached to the rack in place of the existing control device.
Next, the operation is to connect the removed many wires one by one to the connection terminal of the corresponding connecting portion of the new control device while checking the wiring position one by one.

このように、従来の置き換え工法は、配線の取り扱いが極めて煩雑であって、長時間の作業となると共に、熟練者が作業しても配線ミスが発生し易いため、配線終了後に配線の確認作業が必要であり、配線ミスが発見されれば、その補修作業にさらなる時間が費やされることになる。このため、制御装置の置き換え作業の際は、当制御装置を組み込んだシステムを長時間停止させなければならなかった。   In this way, the conventional replacement method is extremely complicated in handling the wiring, and it takes a long time, and it is easy for a skilled person to work on the wiring. If a wiring mistake is discovered, more time will be spent on the repair work. For this reason, when replacing the control device, the system incorporating the control device had to be stopped for a long time.

尚、コネクタの接続形式が異なる機器間の接続を可能にする接続変換技術として、例えば、特許文献１が開示されている。
特開２００２−２８０１３５号公報 For example, Patent Document 1 is disclosed as a connection conversion technique that enables connection between devices having different connector connection formats.
JP 2002-280135 A

本発明は、上記した従来の問題点に鑑み成されたもので、既存制御装置と新規制御装置とで接続部の接続形式が相違していても、制御装置を短時間で効率良く置き換えできる好ましい制御装置の置き換え工法を提供することを目的としている。   The present invention has been made in view of the above-described conventional problems, and it is preferable that the control device can be efficiently replaced in a short time even if the connection control method of the connection unit is different between the existing control device and the new control device. The purpose is to provide a control device replacement method.

すなわち、請求項１に記載の本発明は、外部機器との接続が外部機器側と制御装置側の一対の接続部を介して成された既設制御装置を、接続部の接続形式が異なる新規制御装置に更新するための制御装置の置き換え工法であって、前記既設制御装置側の接続部と同じ接続形式の接続部と、前記新規制御装置の接続部に対応する中継用接続部とを備え、前記接続部の接続端子が対応する前記中継用接続部の接続端子に接続されたアダプタユニットを予め用意すると共に、前記新規制御装置を当該アダプタユニットの角隅部にヒンジを介して上記外部機器の接続側から離間する方向に回転自在に取り付け、且つ当該アダプタユニットの中継用接続部を前記新規制御装置の対応する接続部に接続しておき、次いで、前記既設制御装置の設置場所において、前記既設制御装置を取り外す作業と、前記外部機器側の接続部を外して前記アダプタユニットの対応する接続部に接続する作業を行うことを特徴としている。 That is, the present invention according to claim 1 is a novel control method in which an existing control device in which connection with an external device is made via a pair of connection portions on the external device side and the control device side is different in connection form of the connection portion. A control device replacement method for updating to a device, comprising a connection portion of the same connection type as the connection portion on the existing control device side, and a relay connection portion corresponding to the connection portion of the new control device, An adapter unit connected in advance to the connection terminal of the relay connection unit corresponding to the connection terminal of the connection unit is prepared in advance, and the new control device is connected to the corner of the adapter unit via a hinge via a hinge. mounted rotatably in a direction away from the connection side, leave and connect the relay connecting portion of the adapter unit to the corresponding connection of the new control device, then you the location of the existing control device Te, the operation of removing the existing control device is characterized in that the disconnect the connection of the external device side performs the operation of connecting to the corresponding connection portion of said adapter unit.

また、請求項２に記載の本発明は、請求項１に記載の制御装置の置き換え工法において、前記既設制御装置の接続部の配列と、前記アダプタユニットの接続部の配列を一致させたことを特徴としている。 Further, according to the present invention of claim 2 , in the replacement method of the control device according to claim 1, the arrangement of the connection portions of the existing control device and the arrangement of the connection portions of the adapter unit are matched. It is a feature.

請求項１に記載の発明によれば、外部機器側の接続部の既設配線をそのまま使用し、既設制御装置の設置場所において、外部機器側の接続部をアダプタユニットの接続部に差し換えるだけの単純作業であるため、制御装置の置き換え作業は熟練技術を要さずに短時間で行えるようになる。これにより、作業工数の大幅な低減が可能となると共に、配線ミスによるトラブルも軽減し、置き換え作業を終えた新規制御装置の信頼性も大いに向上する。 According to the first aspect of the present invention, the existing wiring of the connection portion on the external device side is used as it is, and the connection portion on the external device side is simply replaced with the connection portion of the adapter unit at the installation location of the existing control device. Since it is a simple operation, the replacement operation of the control device can be performed in a short time without requiring skill. As a result, the number of work steps can be greatly reduced, troubles due to wiring mistakes can be reduced, and the reliability of the new control device after the replacement work can be greatly improved.

特に、請求項２に記載の発明のように、既設制御装置とアダプタユニットで、接続部の配列を一致させることにより、各接続部の差し換え作業も極めて容易に、且つ、誤りなく迅速に行えるようになる。 In particular, as in the second aspect of the present invention, by making the arrangement of the connecting portions match between the existing control device and the adapter unit, the replacement work of each connecting portion can be performed very easily and without error. become.

以下、図面に基づいて本発明の制御装置の置き換え工法の実施形態を説明する。
本実施形態では、端子部やコネクタ等、複数の接続端子を有する接続部を介して入力機器であるセンサや、出力機器であるソレノイド、モータ等の様々な外部機器がケーブルにて接続された既設の制御装置（例えば、ＰＬＣ：Ｐｒｏｇｒａｍｍａｂｌｅ Ｌｏｇｉｃ Ｃｏｎｔｒｏｌｌｅｒ）を新規の制御装置に更新（入れ換え）する場合について説明する。 Hereinafter, an embodiment of a replacement method for a control device of the present invention will be described based on the drawings.
In this embodiment, various external devices such as terminals, connectors, and other external devices such as sensors, output devices, solenoids, and motors are connected via cables via a connection portion having a plurality of connection terminals. A case will be described in which a control device (for example, PLC: Programmable Logic Controller) is updated (replaced) to a new control device.

図１は、既設制御装置１を示している。この既設制御装置１は、正面にそれぞれ端子部Ｔ１〜Ｔ５、コネクタＣＮ１〜ＣＮ４等の接続部が配設された複数のＩ／ＯユニットＵ１〜Ｕ７と、これらＩ／ＯユニットＵ１〜Ｕ７を介して上記入力機器（図示せず）の情報を監視し、また、上記出力機器の動作を制御するコントローラ部５０と、制御用電源を供給する電源ユニット５１と、Ｉ／Ｏユニット増設用の拡張用コネクタ５２等を備え、これらが装置裏側のベースボード６０に装着されている。
そして、この既設制御装置１がベースボード６０の四隅に設けた取付孔６１を使用して図示しない収納用のラックにネジ止めにて取り付けられている。 FIG. 1 shows an existing control device 1. The existing control device 1 includes a plurality of I / O units U1 to U7 having connection portions such as terminal portions T1 to T5 and connectors CN1 to CN4 disposed on the front surface, and these I / O units U1 to U7. The controller 50 monitors the information of the input device (not shown) and controls the operation of the output device, the power supply unit 51 that supplies the control power, and the expansion for I / O unit expansion. A connector 52 and the like are provided, and these are attached to the base board 60 on the back side of the apparatus.
The existing control device 1 is attached to a storage rack (not shown) with screws using attachment holes 61 provided at the four corners of the base board 60.

図２は、既設制御装置１のＩ／Ｏユニットを示しており、図２（ａ）は、端子部Ｔ１〜Ｔ５が配設されたＩ／Ｏユニット（すなわち、Ｉ／ＯユニットＵ２、Ｕ３、Ｕ５〜Ｕ７）、図２（ｂ）は、コネクタＣＮ１〜ＣＮ４が配設されたＩ／Ｏユニット（すなわち、Ｉ／ＯユニットＵ１、Ｕ４）である。
これらＩ／ＯユニットＵ１〜Ｕ７をベースボード６０の所定のスロット（図示せず）に差し込むことにより、各Ｉ／ＯユニットＵ１〜Ｕ７をベースボード６０に着脱自在に装着することができる。 FIG. 2 shows an I / O unit of the existing control device 1, and FIG. 2 (a) shows an I / O unit in which terminal portions T1 to T5 are arranged (that is, I / O units U2, U3, U5 to U7) and FIG. 2B are I / O units (that is, I / O units U1 and U4) in which connectors CN1 to CN4 are arranged.
By inserting these I / O units U1 to U7 into predetermined slots (not shown) of the base board 60, the respective I / O units U1 to U7 can be detachably attached to the base board 60.

端子部Ｔ１〜Ｔ５やコネクタＣＮ１〜ＣＮ４等の接続部は、それぞれ、制御装置側の接続部（固定側）と外部機器側の接続部（可動側）の一対の接続部にて構成され、可動側の接続部を固定側の接続部に差し込むことにより、各種外部機器がそれぞれ対応する所定のＩ／ＯユニットＵ１〜Ｕ７にケーブル２０を介して接続されることになる。
尚、制御対象となる外部機器の設置台数に応じてＩ／Ｏユニットが増設されることになり、設置台数によっては、上記ラックに複数台（２〜３台）の既設制御装置１が設置される場合もあり、各既設制御装置１間の接続が上述した拡張用コネクタ５２（この場合、拡張用コネクタ５２は２個併設される）を介して行われる。 The connection portions such as the terminal portions T1 to T5 and the connectors CN1 to CN4 are each composed of a pair of connection portions of a connection portion (fixed side) on the control device side and a connection portion (movable side) on the external device side. By inserting the connection portion on the side into the connection portion on the fixed side, various external devices are connected to the corresponding predetermined I / O units U1 to U7 via the cable 20, respectively.
The number of I / O units is increased according to the number of external devices to be controlled. Depending on the number of installed external devices, a plurality (2 to 3) of existing control devices 1 are installed in the rack. In some cases, the connections between the existing control devices 1 are made via the expansion connectors 52 described above (in this case, two expansion connectors 52 are provided side by side).

他方、図３に、置き換え用の新規制御装置２を示す。この新規制御装置２は、正面にそれぞれ端子部Ｔ１１〜Ｔ１６、コネクタＣＮ１１〜ＣＮ１５等が配設された複数のＩ／ＯユニットＵ１１〜Ｕ２１と、これらＩ／ＯユニットＵ１１〜Ｕ２１を介して上記外部機器を制御するコントローラ部７０と、電源ユニット７１と、Ｉ／Ｏユニット増設用の拡張コネクタ７２等を備え、これらが装置裏側のベースボード８０に装着されている。   On the other hand, FIG. 3 shows a new control device 2 for replacement. The new control device 2 includes a plurality of I / O units U11 to U21 having terminal portions T11 to T16, connectors CN11 to CN15 and the like arranged on the front surface, and the external devices via these I / O units U11 to U21. A controller unit 70 for controlling the device, a power supply unit 71, an expansion connector 72 for adding an I / O unit, and the like are provided on a base board 80 on the back side of the apparatus.

図４は新規制御装置２のＩ／Ｏユニットを示しており、図４（ａ）は、端子部Ｔ１１〜Ｔ１６が配設されたＩ／Ｏユニット（すなわち、Ｉ／ＯユニットＵ１３〜Ｕ１５、Ｕ１９〜Ｕ２１）、図３（ｂ）は、コネクタＣＮ１１〜ＣＮ１５が配設されたＩ／Ｏユニット（すなわち、Ｉ／ＯユニットＵ１１、Ｕ１２、Ｕ１６〜Ｕ１８）である。
これらＩ／ＯユニットＵ１１〜Ｕ２１をベースボード８０の所定のスロット（図示せず）に差し込むことにより、各Ｉ／ＯユニットＵ１１〜Ｕ２１をベースボード８０に着脱自在に装着することができる。 FIG. 4 shows an I / O unit of the new control apparatus 2. FIG. 4A shows an I / O unit in which terminal portions T11 to T16 are arranged (that is, I / O units U13 to U15, U19). (U21) and FIG. 3 (b) are I / O units (that is, I / O units U11, U12, U16 to U18) in which connectors CN11 to CN15 are arranged.
By inserting these I / O units U11 to U21 into predetermined slots (not shown) of the base board 80, the I / O units U11 to U21 can be detachably attached to the base board 80.

このように、新規制御装置２と既設制御装置１とでは、各部の構成が同じであるが、装置サイズは元より、各接続部の接続形式（例えば、端子部およびコネクタの種類や設置個数、或いは接続端子の数や信号線に対応する接続端子の配列等）が全く相違している。   Thus, although the structure of each part is the same in the new control apparatus 2 and the existing control apparatus 1, not only the apparatus size but the connection type of each connection part (for example, the type and the number of installed terminals and connectors, Alternatively, the number of connection terminals, the arrangement of connection terminals corresponding to signal lines, etc.) are completely different.

そこで、本実施形態では、既設制御装置１を新規制御装置２に置き換えする場合、以下のような手順にて行うようにした。   Therefore, in the present embodiment, when the existing control device 1 is replaced with the new control device 2, the following procedure is used.

制御装置の置き換えに際し、先ず、既設制御装置１と新規制御装置２の接続部の接続形式を整合させるための変換用のアダプタユニット３（図３参照）を作製する。   When replacing the control device, first, an adapter unit 3 for conversion (see FIG. 3) for matching the connection formats of the connecting portions of the existing control device 1 and the new control device 2 is produced.

このアダプタユニット３は、正面パネル５と、この正面パネル５を取り付ける固定台６とで構成されている。
正面パネル５には、既設制御装置１側の接続部（端子部Ｔ１〜Ｔ５およびコネクタＣＮ１〜ＣＮ４）と接続形式が同じ接続部（端子部Ｔ１’〜Ｔ５’およびコネクタＣＮ１’〜ＣＮ４’）が配設されており、且つ、正面パネル５と既設制御装置１とで接続部の配列を一致させてある。 The adapter unit 3 includes a front panel 5 and a fixed base 6 to which the front panel 5 is attached.
The front panel 5 has connection portions (terminal portions T1 ′ to T5 ′ and connectors CN1 ′ to CN4 ′) having the same connection form as the connection portions (terminal portions T1 to T5 and connectors CN1 to CN4) on the existing control device 1 side. The front panel 5 and the existing control device 1 are arranged in the same arrangement.

そして、この正面パネル５の裏側において、図５（ａ）、図５（ｂ）に示すように、端子部Ｔ１’〜Ｔ５’がそれぞれ中継用端子部Ｔ１”〜Ｔ５”（中継用接続部）に接続され、コネクタＣＮ１’〜ＣＮ４’がそれぞれ中継用コネクタＣＮ１”〜ＣＮ４”（中継用接続部）に接続されている。   Then, on the back side of the front panel 5, as shown in FIGS. 5A and 5B, the terminal portions T1 ′ to T5 ′ are respectively connected to the relay terminal portions T1 ″ to T5 ″ (relay connection portions). And connectors CN1 ′ to CN4 ′ are connected to relay connectors CN1 ″ to CN4 ″ (relay connection portions), respectively.

尚、端子部Ｔ１’〜Ｔ５’とこれらの中継用端子部Ｔ１”〜Ｔ５”、およびコネクタＣＮ１’〜ＣＮ４’とこれらの中継用コネクタＣＮ１”〜ＣＮ４”は、一対ずつ各中継基板４に実装されており、且つ、端子部Ｔ１’〜Ｔ５’と中継用端子部Ｔ１”〜Ｔ５”の接続、およびコネクタＣＮ１’〜ＣＮ４’と中継用コネクタＣＮ１”〜ＣＮ４”の接続は、何れもこの中継基板４に形成されたパターン配線により成されている。
そして、これら中継用端子部Ｔ１”〜Ｔ５”の各接続端子が内部配線１０により、それぞれ対応する新規制御装置２の端子部Ｔ１１〜Ｔ１６の各接続端子に接続され、また、中継用コネクタＣＮ１”〜ＣＮ４”の各接続端子が内部配線１０により、それぞれ対応する新規制御装置２のコネクタＣＮ１１〜ＣＮ１５の各接続端子に接続されている。 The terminal portions T1 ′ to T5 ′ and the relay terminal portions T1 ″ to T5 ″, and the connectors CN1 ′ to CN4 ′ and the relay connectors CN1 ″ to CN4 ″ are mounted on each relay board 4 in pairs. The connection between the terminal portions T1 'to T5' and the relay terminal portions T1 "to T5" and the connection between the connectors CN1 'to CN4' and the relay connectors CN1 "to CN4" The pattern wiring formed on the substrate 4 is used.
The connection terminals of the relay terminal portions T1 ″ to T5 ″ are connected to the connection terminals of the corresponding terminal portions T11 to T16 of the new control device 2 by the internal wiring 10, respectively, and the relay connector CN1 ″. To CN4 ″ are connected to the connection terminals of the connectors CN11 to CN15 of the corresponding new control device 2 by the internal wiring 10, respectively.

このように、新規制御装置２の前段にアダプタユニット３を介在することにより、アダプタユニット３を通して既設制御装置１の接続部の接続形式が新規制御装置２の接続部の接続形式に変換され、既設制御装置１の接続部の各接続端子と、これに対応する新規制御装置２の接続部の各接続端子が内部配線１０により電気的に接続されることになる。   In this way, by interposing the adapter unit 3 in the previous stage of the new control device 2, the connection type of the connection part of the existing control device 1 is converted to the connection type of the connection part of the new control device 2 through the adapter unit 3. Each connection terminal of the connection part of the control apparatus 1 and each connection terminal of the connection part of the new control apparatus 2 corresponding to this are electrically connected by the internal wiring 10.

また、このアダプタユニット３と新規制御装置２との間の内部配線１０による接続変換形態の代表例として、例えば、図７、図８の構成を挙げることができる。尚、図７、図８中の符号Ａはアダプタユニット３側の接続部を示し、符号Ｂは新規制御装置２側の接続部を示している。   Moreover, as a typical example of the connection conversion form by the internal wiring 10 between this adapter unit 3 and the new control apparatus 2, the structure of FIG. 7, FIG. 8 can be mentioned, for example. 7 and 8, reference symbol A indicates a connection portion on the adapter unit 3 side, and reference symbol B indicates a connection portion on the new control device 2 side.

図７は、端子部の接続変換例であって、（ａ）は、１６点用の端子部を８点用の端子部２個に分割配線する例、（ｂ）は、１６点用の端子部を１６点用の端子部１個に配線する例、（ｃ）は、３２点用の端子部を８点用の端子部４個に分割配線する例、（ｄ）は、３２点用の端子部を１６点用の端子部２個に分割配線する例である。また、図８は、コネクタの接続変換例であって、（ａ）は、３２点用のコネクタを３２点用のコネクタに配線する例、（ｂ）は、３２点用の２個のコネクタを６４点用の１個のコネクタに纏めて配線する例である。
尚、上述した８点、１６点、３２点、６４点等の記載は、端子部やコネクタの接続端子の数を示している。 FIGS. 7A and 7B show examples of connection conversion of terminal portions, where FIG. 7A shows an example in which a terminal portion for 16 points is divided into two terminal portions for 8 points, and FIG. 7B shows a terminal for 16 points. (C) shows an example in which a terminal part for 32 points is divided into four terminal parts for 8 points, and (d) shows an example for 32 points. In this example, the terminal portion is divided into two 16-point terminal portions. FIG. 8 is an example of connector connection conversion. (A) shows an example of wiring a 32-point connector to a 32-point connector, and (b) shows two connectors for 32 points. This is an example of wiring in one connector for 64 points.
In addition, the description of 8 points | pieces, 16 points | pieces, 32 points | pieces, 64 points | pieces, etc. which have mentioned above has shown the number of the connection parts of a terminal part or a connector.

次に、上記構成のアダプタユニット３を、図６に示すように、新規制御装置２の裏側に取り付ける。
図６において、正面パネル５の長手両端部より縦方向に支持板８が設けられ、この支持板８の上端部を直角に折り曲げた支持部８ａに新規制御装置２のベースボード８０が載置され、ネジ止め等によって固定されている。但し、本実施形態では、一方の支持部８ａ側を、例えば丁番９による取り付けとして、新規制御装置２を破線で示すように回転自在とし、必要時に新規制御装置２を手前に回転移動させることにより、新規制御装置２の奧側に位置するアダプタユニット３の正面パネル５を装置手前側より容易にアクセスできるようになっている。 Next, the adapter unit 3 having the above configuration is attached to the back side of the new control device 2 as shown in FIG.
In FIG. 6, a support plate 8 is provided in the longitudinal direction from both longitudinal ends of the front panel 5, and a base board 80 of the new control device 2 is placed on a support portion 8a in which the upper end portion of the support plate 8 is bent at a right angle. It is fixed by screwing or the like. However, in the present embodiment, one support portion 8a side is attached by, for example, a hinge 9, so that the new control device 2 is rotatable as indicated by a broken line, and the new control device 2 is rotated forward when necessary. Thus, the front panel 5 of the adapter unit 3 located on the heel side of the new control device 2 can be easily accessed from the front side of the device.

以上、説明したアダプタユニット３の製作、アダプタユニット３と新規制御装置２の間の配線、およびアダプタユニット３の新規制御装置２への取り付け等の作業は予め工場側（装置供給側）で行われる。   As described above, the manufacture of the adapter unit 3 described above, the wiring between the adapter unit 3 and the new control device 2, and the attachment of the adapter unit 3 to the new control device 2 are performed in advance on the factory side (device supply side). .

次に、既設制御装置１をアダプタユニット３を取り付けた新規制御装置２に置き換えるには、先ず、既設制御装置１の設置場所（ユーザーサイド）において、既設制御装置１に接続されている外部機器側の接続部（端子部Ｔ１〜Ｔ５、コネクタＣＮ１〜ＣＮ４）を全て取り外す。   Next, in order to replace the existing control device 1 with the new control device 2 to which the adapter unit 3 is attached, first, the external device connected to the existing control device 1 at the installation location (user side) of the existing control device 1 Are all removed (terminal portions T1 to T5, connectors CN1 to CN4).

次いで、既設制御装置１のベースボード６０の止めネジを外してラックから既設制御装置１を取り外し、代わりに新規制御装置２をラックに取り付ける。取付は、アダプタユニット３の固定台６に設けた四隅の取付孔７を利用してネジ止めする。これにより、新規制御装置２は、アダプタユニット３を介してラックに固定される。   Next, the set screw of the base board 60 of the existing control device 1 is removed to remove the existing control device 1 from the rack, and the new control device 2 is attached to the rack instead. The attachment is screwed using the attachment holes 7 at the four corners provided in the fixing base 6 of the adapter unit 3. As a result, the new control device 2 is fixed to the rack via the adapter unit 3.

次いで、新規制御装置２を手前側に回転移動させて奧側に位置するアダプタユニット３を露出させると共に、正面パネル５に配設された接続部（端子部Ｔ１’〜Ｔ５’およびコネクタＣＮ１’〜ＣＮ４’）のそれぞれに、前作業により既に取り外されている外部機器側の接続部（端子部Ｔ１〜Ｔ５およびコネクタＣＮ１〜ＣＮ４）を差し込み接続する。   Next, the new control device 2 is rotated and moved to the front side to expose the adapter unit 3 located on the heel side, and connection portions (terminal portions T1 ′ to T5 ′ and connectors CN1 ′ to CN1 ′) disposed on the front panel 5 are exposed. CN4 ′) is inserted and connected to the external device side connection portions (terminal portions T1 to T5 and connectors CN1 to CN4) that have already been removed in the previous operation.

通常、各外部機器は制御装置の後方部に位置し、外部機器への接続用ケーブル２０は制御装置の裏側から引き出されるようにケーブル配線が成されているため、本実施形態のように、アダプタユニット３を外部機器により近い制御装置の裏側に配置させることにより、ケーブル２０の長さに余裕を生じさせることができる。この結果、アダプタユニット３における各接続部の差し換え作業の際に、ケーブル２０長が足らなくなって、接続部の差し換え作業に支障を来すといった不都合を回避できる。   Normally, each external device is located at the rear part of the control device, and the cable 20 is connected so that the connection cable 20 to the external device is pulled out from the back side of the control device. By arranging the unit 3 on the back side of the control device closer to the external device, a margin can be generated in the length of the cable 20. As a result, it is possible to avoid the inconvenience that the length of the cable 20 is insufficient when replacing each connecting portion in the adapter unit 3 and hinders the replacing operation of the connecting portion.

以上、本実施形態では、１台の既設制御装置１を置き換える場合について説明したが、複数台の既設制御装置１を置き換えすることも勿論可能であり、この場合は、各新規制御装置１毎に上述したアダプタユニット３を用意する必要がある。置き換え作業は上述した通りである。   As mentioned above, although this embodiment demonstrated the case where one existing control apparatus 1 was replaced | exchanged, of course, it is also possible to replace a plurality of existing control apparatuses 1, and in this case, for each new control apparatus 1 It is necessary to prepare the adapter unit 3 described above. The replacement work is as described above.

また、本実施形態では、予め工場側において、新規制御装置２とアダプタユニット３の取り付け、および新規制御装置２の接続部とアダプタユニット３の中継用接続部の配線を行うようにしたが、係る作業を既設制御装置１の設置場所において行うようにしても良い。   Further, in the present embodiment, on the factory side, the new control device 2 and the adapter unit 3 are attached in advance, and the connecting portion of the new control device 2 and the relay connection portion of the adapter unit 3 are wired. You may make it perform work in the installation place of the existing control apparatus 1. FIG.

以上のように、本実施形態の制御装置の置き換え工法によれば、工場側での作業にある程度の工数と時間を要するものの、既設制御装置１の設置場所における作業については、外部機器側の接続部の既設ケーブル２０をそのまま使用して、外部機器側の接続部をアダプタユニット３の接続部に差し換えるだけの単純作業となるから、制御装置の置き換え作業は熟練技術を要さずに短時間で行えるようになる。
この場合、既設制御装置１の接続部の配列とアダプタユニット３の接続部の配列を一致させているので、各接続部の差し換え作業は極めて容易であり、且つ、誤り無く迅速に行える。 As described above, according to the control device replacement method of the present embodiment, the work on the factory side requires a certain amount of man-hours and time, but the work at the installation location of the existing control device 1 is connected on the external device side. Since the existing cable 20 is used as it is and the connection part on the external device side is simply replaced with the connection part of the adapter unit 3, the replacement work of the control device is a short time without requiring skill. Will be able to do it.
In this case, since the arrangement of the connection portions of the existing control device 1 and the arrangement of the connection portions of the adapter unit 3 are matched, replacement of each connection portion is extremely easy and can be performed quickly without error.

これにより、現地における作業工数の大幅な低減が可能となり、従来のように、制御装置の置き換え作業のためにシステムを長時間にわたって停止させる必要が無くなると共に、配線ミスによるトラブルも軽減され、置き換えを終えた新規制御装置２の信頼性も大いに向上する。
因みに、本発明による制御装置の置き換え工法は、従来工法に比べて交換作業時間を１／５程度に短縮することが可能となった。 As a result, it is possible to significantly reduce the work man-hours at the site, eliminating the need to stop the system for a long period of time to replace the control device as before, and reducing troubles due to wiring mistakes. The reliability of the completed new control device 2 is also greatly improved.
Incidentally, the replacement method of the control device according to the present invention can shorten the replacement work time to about 1/5 compared with the conventional method.

既設制御装置の正面図。The front view of the existing control apparatus. 既設制御装置のＩ／Ｏユニットの側面図。The side view of the I / O unit of the existing control apparatus. 新規制御装置およびアダプタユニットの正面図。The front view of a new control apparatus and an adapter unit. 新規制御装置のＩ／Ｏユニットの側面図。The side view of the I / O unit of a new control apparatus. アダプタユニットの側面図。The side view of an adapter unit. アダプタユニットを取り付けた新規制御装置の底面図。The bottom view of the new control apparatus which attached the adapter unit. アダプタユニットと新規制御装置との間の接続変換形態を示す図。The figure which shows the connection conversion form between an adapter unit and a new control apparatus. 図７とは別の接続変換形態を示す図。The figure which shows the connection conversion form different from FIG.

符号の説明Explanation of symbols

１ 既設制御装置
２ 新規制御装置
３ アダプタユニット
Ｔ１〜Ｔ５、Ｔ１１〜Ｔ１６ 接続部（端子部）
ＣＮ１〜ＣＮ４、ＣＮ１１〜ＣＮ１５ 接続部（コネクタ）
Ｔ１”〜Ｔ５” 中継用接続部（中継用端子部）
ＣＮ１”〜ＣＮ４” 中継用接続部（中継用コネクタ） DESCRIPTION OF SYMBOLS 1 Existing control apparatus 2 New control apparatus 3 Adapter unit T1-T5, T11-T16 Connection part (terminal part)
CN1 to CN4, CN11 to CN15 connection part (connector)
T1 "to T5" Relay connection (relay terminal)
CN1 "to CN4" relay connection (relay connector)

Claims (2)

外部機器との接続が外部機器側と制御装置側の一対の接続部を介して成された既設制御装置を、接続部の接続形式が異なる新規制御装置に更新するための制御装置の置き換え工法であって、
前記既設制御装置側の接続部と同じ接続形式の接続部と、前記新規制御装置の接続部に対応する中継用接続部とを備え、前記接続部の接続端子が対応する前記中継用接続部の接続端子に接続されたアダプタユニットを予め用意すると共に、前記新規制御装置を当該アダプタユニットの角隅部にヒンジを介して上記外部機器の接続側から離間する方向に回転自在に取り付け、且つ当該アダプタユニットの中継用接続部を前記新規制御装置の対応する接続部に接続しておき、
次いで、前記既設制御装置の設置場所において、前記既設制御装置を取り外す作業と、前記外部機器側の接続部を外して前記アダプタユニットの対応する接続部に接続する作業を行うことを特徴とする制御装置の置き換え工法。 A control device replacement method for updating an existing control device in which connection with an external device is made through a pair of connection portions on the external device side and the control device side to a new control device having a different connection type of the connection portion. There,
A connection portion of the same connection type as the connection portion on the existing control device side, and a relay connection portion corresponding to the connection portion of the new control device, wherein the connection terminal of the connection portion corresponds to the connection portion of the relay An adapter unit connected to the connection terminal is prepared in advance, and the new control device is rotatably attached to a corner of the adapter unit via a hinge in a direction away from the connection side of the external device. Connect the relay connection part of the unit to the corresponding connection part of the new control device,
Next, at the installation location of the existing control device, the operation of removing the existing control device and the operation of removing the connection portion on the external device side and connecting to the corresponding connection portion of the adapter unit are performed. Device replacement method. あ前記既設制御装置の接続部の配列と前記アダプタユニットの接続部の配列を一致させたことを特徴とする請求項１に記載の制御装置の置き換え工法。 2. The replacement method for a control device according to claim 1, wherein the arrangement of the connection portions of the existing control device is matched with the arrangement of the connection portions of the adapter unit.
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