JPH0648017U - External power supply automatic recognition processor for I / O boards - Google Patents
External power supply automatic recognition processor for I / O boardsInfo
- Publication number
- JPH0648017U JPH0648017U JP8204692U JP8204692U JPH0648017U JP H0648017 U JPH0648017 U JP H0648017U JP 8204692 U JP8204692 U JP 8204692U JP 8204692 U JP8204692 U JP 8204692U JP H0648017 U JPH0648017 U JP H0648017U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- external
- external power
- input
- output board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Control Of Voltage And Current In General (AREA)
- Power Sources (AREA)
- Feedback Control In General (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
(57)【要約】
【目的】 外部電源の変動による外付け抵抗の取替えを
不要とし、異常電圧が入力されても損傷しない入出力基
板を実現する。
【構成】 外部電源２が接続される電源監視回路３、同
回路３と上記外部電源２が接続された電源ライン切換部
４、および同切換部４と入出力用モジュール９の間に接
続され複数個の外付き抵抗７，８が設けられた外付け抵
抗部６により処理装置が形成され、これが入出力基板１
に設けられたことによって、外部電源２が接続される
と、その電圧に対応した外付け抵抗が選択され、その外
付け抵抗を介して入出力用モジュール９に外部電源２が
接続されるため、異なる外部電源２を接続する場合の外
付け抵抗７，８の取替えを不要とし、また、異常電圧に
よる入出力基板１の損傷防止も可能とする。
(57) [Summary] [Purpose] To realize an input / output board that does not require replacement of external resistors due to fluctuations in the external power supply and is not damaged even when abnormal voltage is input. A power supply monitoring circuit 3 to which an external power supply 2 is connected, a power supply line switching unit 4 to which the circuit 3 and the external power supply 2 are connected, and a plurality of power supply line switching units 4 and the input / output module 9 are connected. A processing device is formed by the external resistor portion 6 provided with the individual external resistors 7 and 8, and this is the input / output board 1.
When the external power supply 2 is connected, the external resistance corresponding to the voltage is selected, and the external power supply 2 is connected to the input / output module 9 via the external resistance. It is not necessary to replace the external resistors 7 and 8 when connecting different external power supplies 2, and it is possible to prevent damage to the input / output board 1 due to abnormal voltage.
Description
【０００１】[0001]
本考案は、外部電源を必要とする入出力基板に適用される入出力基板用外部電 源自動認識処理装置に関する。 The present invention relates to an input / output board external power supply automatic recognition processing device applied to an input / output board that requires an external power supply.
【０００２】[0002]
従来は外部電源を必要とする入出力基板においては、図２に示すように入出力 用モジュール９に接続されている外付け抵抗７を外部電源の電圧に応じて入れ替 えて基板を製作していた。 Conventionally, in the case of an input / output board that requires an external power source, the external resistor 7 connected to the input / output module 9 is replaced according to the voltage of the external power source to manufacture the board as shown in FIG. .
【０００３】[0003]
従来の入出力基板においては、外部電源を決定してからそれに合った外付け抵 抗を基板に付けて製作しているため、外部電源の変更に対応するには外付け抵抗 の取替を行う必要があった。また、外部電源の接続ミスや変動時には基板の損傷 を引きおこすおそれがあった。 本考案は上記の課題を解決しようとするものである。 In the conventional I / O board, the external power supply is determined and then an external resistor suitable for the external power supply is attached to the board. Therefore, in order to respond to changes in the external power supply, the external resistance is replaced. There was a need. In addition, there is a risk that the board may be damaged when the external power supply is connected incorrectly or changes. The present invention is intended to solve the above problems.
【０００４】[0004]
本考案の入出力基板用外部電源自動認識処理装置は、入出力基板に設けられ外 部電源が接続される電源監視回路、同電源監視回路と上記外部電源が接続される 電源ライン切換部、および同電源ライン切換部が接続され複数個の外付け抵抗が 設けられいずれかの外付き抵抗を介して上記外部電源を入出力用モジュールに接 続する外付け抵抗部を備えたことを特徴としている。 The automatic external power supply recognition processing device for an input / output board of the present invention is a power supply monitoring circuit provided on the input / output board to which an external power supply is connected, a power supply line switching section to which the power supply monitoring circuit and the external power supply are connected, and The power supply line switching unit is connected, a plurality of external resistors are provided, and an external resistor unit for connecting the external power source to the input / output module via any of the external resistors is provided. .
【０００５】[0005]
上記において、入出力基板に外部電源が接続されると、その電圧が電源監視回 路に入力される。 In the above, when an external power supply is connected to the input / output board, the voltage is input to the power supply monitoring circuit.
【０００６】 上記電源電圧が入力された電源監視回路は電源ライン切換部に制御信号を入力 し、電源ライン切換部は外付け抵抗部に設けられた複数個の外付け抵抗の中から 電源電圧に対応をす外付け抵抗を選択し、選択された外付け抵抗に外部電源を接 続する。The power supply monitoring circuit to which the power supply voltage is input inputs a control signal to the power supply line switching unit, and the power supply line switching unit selects the power supply voltage from the plurality of external resistors provided in the external resistor unit. Select the corresponding external resistor and connect the external power supply to the selected external resistor.
【０００７】 そのため、外部電源はその電圧に対応した適切な外付き抵抗を介して入出力用 モジュールに電流を供給する。なお、電源電圧に対応する適切な外付け抵抗がな い場合には、外部電源は入出力用モジュールに接続されない。Therefore, the external power supply supplies a current to the input / output module through an appropriate external resistor corresponding to the voltage. If there is no appropriate external resistor corresponding to the power supply voltage, the external power supply is not connected to the I / O module.
【０００８】 上記のように、外部電源が接続されると、その電圧に対応した外付け抵抗が選 択され、その外付け抵抗を介して入出力用モジュールに外部電源が接続されるた め、異なる外部電源を接続する場合の外付け抵抗の取替えが不要となり、また、 異常電圧による入出力基板の損傷防止も可能となる。As described above, when the external power source is connected, the external resistor corresponding to the voltage is selected, and the external power source is connected to the input / output module via the external resistor. It is not necessary to replace the external resistor when connecting different external power supplies, and it is possible to prevent damage to the I / O board due to abnormal voltage.
【０００９】[0009]
本考案の一実施例に係る外部電源自動認識処理装置を図１により説明する。図 １に示す本実施例の装置は、入出力用モジュール９を有する入出力基板１に設け られるものであり、外部電源２が接続される電源監視回路３、同回路３に接続さ れた外部電源異常表示部５、上記外部電源２と電源監視回路３にそれぞれ接続さ れた切換スイッチ部４ａとスイッチ駆動部４ｂが設けられた電源ライン切換部４ 、同切換部４の切換スイッチ部４ａにそれぞれ一端が接続され他端が上記入出力 用モジュール９に接続された外付け抵抗７と外付け抵抗８が設けられた外付け抵 抗部６を備えている。 An external power supply automatic recognition processing apparatus according to an embodiment of the present invention will be described with reference to FIG. The apparatus of the present embodiment shown in FIG. 1 is provided on an input / output board 1 having an input / output module 9, and includes a power supply monitoring circuit 3 to which an external power supply 2 is connected, and an external device connected to the circuit 3. A power supply abnormality display unit 5, a power supply line switching unit 4 provided with a changeover switch unit 4a and a switch driving unit 4b connected to the external power supply 2 and the power supply monitoring circuit 3, respectively, and a changeover switch unit 4a of the same changeover unit 4. The external resistor section 6 is provided with an external resistor 7 and an external resistor 8 each having one end connected and the other end connected to the input / output module 9.
【００１０】 上記において、入出力基板１に外部電源２が接続されると、電源監視回路３が その電圧レベルを検知し、異常な外部電源２と判断すると、外部電源異常表示部 ５に信号を送りユーザーに異常状態を知らせる。このとき、外付け抵抗部６には 外部電源２は接続されず、入出力用モジュールに電流が供給されない。In the above description, when the external power supply 2 is connected to the input / output board 1, the power supply monitoring circuit 3 detects the voltage level, and when the external power supply 2 is determined to be abnormal, a signal is sent to the external power supply abnormality display section 5. Notify the sending user of an abnormal condition. At this time, the external power source 2 is not connected to the external resistor section 6, and no current is supplied to the input / output module.
【００１１】 上記電源監視回路３が外付け抵抗７又は８に接続可能な正常な外部電源２と認 識すると、その外部電源２に合致する外付け抵抗を選び（仮に外付け抵抗７とす る）、その外付け抵抗７に外部電源２が接続されるように制御信号を電源ライン 切換部４に入力し、スイッチ駆動部４ｂを作動させ、切換スイッチ４ａを操作す る。When the power supply monitoring circuit 3 recognizes that the external power supply 2 is a normal external power supply 2 that can be connected to the external resistance 7 or 8, an external resistance that matches the external power supply 2 is selected. ), A control signal is input to the power supply line switching unit 4 so that the external power source 2 is connected to the external resistor 7, the switch driving unit 4b is operated, and the changeover switch 4a is operated.
【００１２】 上記のように、外部電源が接続されると、外部電源に合致する外付け抵抗が自 動的に選択され、入出力用モジュールは適切な外付け抵抗を介して外部電源に接 続されるため、入出力基板に異なる外部電源が接続される場合に外付け抵抗を取 替える必要がなく、また、入出力基板の異常電圧による損傷の防止も可能となっ た。As described above, when the external power source is connected, the external resistor that matches the external power source is automatically selected, and the input / output module is connected to the external power source through the appropriate external resistor. Therefore, it is not necessary to replace the external resistor when different external power supplies are connected to the I / O board, and it is possible to prevent damage due to abnormal voltage on the I / O board.
【００１３】 なお、本実施例においては、外付け抵抗は２個としているが、２個以上として 選択の幅を広げることもできる。In this embodiment, the number of external resistors is two, but the number of external resistors may be two or more to widen the selection range.
【００１４】[0014]
本考案の入出力基板用外部電源自動認識処理装置は、外部電源が接続される電 源監視回路、同回路と上記外部電源が接続された電源ライン切換部、および同切 換部と入出力用モジュールの間に接続され複数個の外付き抵抗が設けられた外付 け抵抗部により形成され、これらが入出力基板に設けられたことによって、外部 電源が接続されるとその電圧に対応した外付け抵抗が選択され、その外付け抵抗 を介して入出力用モジュールに外部電源が接続されるため、異なる外部電源を接 続する場合の外付け抵抗の取替えを不要とし、また、異常電圧による入出力基板 の損傷防止も可能とする。 An external power supply automatic recognition processing device for an input / output board of the present invention is a power supply monitoring circuit to which an external power supply is connected, a power supply line switching unit connected to the circuit and the external power supply, and a switching unit and an input / output unit. It is formed by an external resistor part connected between modules and provided with a plurality of external resistors, and these are provided on the input / output board. The external resistor is selected, and the external power supply is connected to the I / O module via the external resistor.Therefore, it is not necessary to replace the external resistor when connecting a different external power supply. It also makes it possible to prevent damage to the output board.
【図１】本考案の一実施例に係る入出力基板用外部電源
自動認識処理装置の説明図である。FIG. 1 is an explanatory diagram of an input / output board external power source automatic recognition processing apparatus according to an embodiment of the present invention.
【図２】従来の装置の説明図である。FIG. 2 is an explanatory diagram of a conventional device.
１ 入出力基板 ２ 外部電源 ３ 電源監視回路 ４ 電源ライン切換部 ４ａ 切換スイッチ部 ４ｂ スイッチ駆動部 ５ 外部電源異常表示部 ６ 外付け抵抗部 ７，８ 外付け抵抗 ９ 入出力用モジュール 1 Input / Output Board 2 External Power Supply 3 Power Supply Monitoring Circuit 4 Power Supply Line Switching Section 4a Changeover Switch Section 4b Switch Driving Section 5 External Power Supply Abnormality Display Section 6 External Resistor Section 7, 8 External Resistor 9 Input / Output Module
Claims (1)
れる電源監視回路、同電源監視回路と上記外部電源が接
続される電源ライン切換部、および同電源ライン切換部
が接続され複数個の外付け抵抗が設けられいずれかの外
付き抵抗を介して上記外部電源を入出力用モジュールに
接続する外付け抵抗部を備えたことを特徴とする入出力
基板用外部電源自動認識処理装置。1. A power supply monitoring circuit provided on an input / output board to which an external power supply is connected, a power supply line switching unit to which the power supply monitoring circuit and the external power supply are connected, and a plurality of power supply line switching units connected to each other. An external power supply automatic recognition processing device for an input / output board, comprising an external resistance portion, the external resistance portion connecting the external power supply to the input / output module via any one of the external resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8204692U JPH0648017U (en) | 1992-11-27 | 1992-11-27 | External power supply automatic recognition processor for I / O boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8204692U JPH0648017U (en) | 1992-11-27 | 1992-11-27 | External power supply automatic recognition processor for I / O boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0648017U true JPH0648017U (en) | 1994-06-28 |
Family
ID=13763579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8204692U Withdrawn JPH0648017U (en) | 1992-11-27 | 1992-11-27 | External power supply automatic recognition processor for I / O boards |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648017U (en) |
-
1992
- 1992-11-27 JP JP8204692U patent/JPH0648017U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19970306 |