JPS61188998A - Printed circuit board insertion and removal - Google Patents
Printed circuit board insertion and removalInfo
- Publication number
- JPS61188998A JPS61188998A JP2828185A JP2828185A JPS61188998A JP S61188998 A JPS61188998 A JP S61188998A JP 2828185 A JP2828185 A JP 2828185A JP 2828185 A JP2828185 A JP 2828185A JP S61188998 A JPS61188998 A JP S61188998A
- Authority
- JP
- Japan
- Prior art keywords
- connector
- bus
- printed circuit
- common
- online
- 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.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はプロセス制御装置に使用される入出力部に適用
され、プリント板が故障をおこした場合。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention is applied to an input/output unit used in a process control device, and is applicable to a case where a printed board fails.
他のプリント板は動作状態で、そのプリント板を交換す
る方式を適用するものである。The other printed boards are replaced while they are in operation.
マイクロコンピュータを使用したプロセス制御装置の適
用が拡大するにつれて、前述の様に、オンラインで故障
を修復する要求が多くなっている。As the application of process control devices using microcomputers expands, there is an increasing demand for on-line repair of failures, as described above.
前述のオンラインプリント板交かんの際、その動作を確
実に行える様にしたオンラインプリント板挿抜法を提供
することにある。It is an object of the present invention to provide an online printed board insertion/removal method that enables reliable operation during the above-mentioned online printed board replacement.
−本発明の概要は、プリント板についている。外゛部電
源コネクタに、あらかじめ、共通電源の端子あるいはピ
ンとバスロック用の信号ピンを用意しておき、プリント
板をオンラインで交かんする際には、別に用意した電源
、ロック信号を与えるコネタにコネクタ外部を差しかえ
て行うプリント板挿抜法。- The summary of the invention is on a printed board. Prepare a terminal or pin for the common power supply and a signal pin for the bus lock on the external power connector in advance, and when exchanging printed boards online, connect the connector to the connector that provides the separately prepared power supply and lock signal. A printed board insertion/extraction method that involves replacing the outside.
第２図は本発明の実施される装置の構成例である、プリ
ント板１，２，３．・・・は共通バス４へ出カゲート１
１．入力ゲート１２などで接続されている。また、いわ
ゆるＶ。ａｔ ＧＮＤからなる、共通電源も共通バス５
，６により供給されている。FIG. 2 shows an example of the configuration of an apparatus in which the present invention is implemented, printed boards 1, 2, 3, . ... is exit gate 1 to common bus 4
1. The input gates 12 and the like are connected to each other. Also, the so-called V. At GND, the common power supply is also common bus 5
, 6.
第２＠、第３図は第１図に使用されているプリント板の
一つを示しており、第２図は通常運転中、第３図はオン
ライン交かんを行うときのコネクタの接続状態を示して
いる。Figures 2 and 3 show one of the printed boards used in Figure 1, Figure 2 shows the connection state of the connector during normal operation, and Figure 3 shows the connection state of the connector when performing online exchange. It shows.
第２図でこのプリント板の状態を説明する。The state of this printed board will be explained with reference to FIG.
本プリント板２ｏは、外部接点４ｏの状態を外部電源３
７．抵抗３０．プイルタ３１からなる回路で検出し、ゲ
ート２６によりオンバス信号２２に従ってプリント板の
接栓２３を介してバスへ送出するものである。ここでオ
ンバス信号２２をコントロールするアンドゲート２８は
抵抗２７により常にオンバス信号２２をオンバスゲート
２６へ送り、必要に応じ外部接点４ｏの状態を共通バス
に送出することかできる。This printed circuit board 2o uses an external power supply 3 to check the state of the external contact 4o.
7. Resistance 30. A circuit consisting of a filter 31 detects the signal, and a gate 26 sends the signal to the bus via a plug 23 on a printed circuit board in accordance with an on-bus signal 22. Here, the AND gate 28 which controls the on-bus signal 22 always sends the on-bus signal 22 to the on-bus gate 26 through the resistor 27, and can send the state of the external contact 4o to the common bus as necessary.
オンライン交かんが必要になったときは、第３図に示す
様に、コネクタ２８が、コネクタ３３にかえられ、外部
電源３７のがわりに、ｖｏと同じ電源３６が接続され、
ダイオード２９により、プリント板２０を引抜き、接栓
２１，２４よりの共通電源が切れても、プリント板２ｏ
内のゲート２６．２８などを連続して動作状態に保つこ
とができる。同時に、コネクタ３３はゲート２８のコン
トロール信号をジャンパー線３７によりＧＮＤ３８に接
続してゲート２８の出力を１１０”に保つため、オンバ
スゲート２６は常にオープンとなり抜出し中にも共通バ
スへ影響を与えることはない。When online exchange becomes necessary, as shown in FIG. 3, the connector 28 is changed to the connector 33, and the same power source 36 as vo is connected instead of the external power source 37.
Even if the printed board 20 is pulled out and the common power source from the connectors 21 and 24 is cut off, the printed board 2o remains intact due to the diode 29.
The gates 26, 28, etc. inside can be kept in continuous operation. At the same time, the connector 33 connects the control signal of the gate 28 to GND 38 via a jumper wire 37 to keep the output of the gate 28 at 110'', so the on-bus gate 26 is always open and does not affect the common bus even during extraction. There isn't.
本発明によれば、オンライン交換のための外部信号、電
源を運転に必要な外部電源と共用するため、あらたに、
オンライン交換のためのコネクタを用意する必要がない
ため、プリント板の面積を有効に利用できると同時に、
外部電源をオンライン時に自動的にカットする−ため、
抜出し、挿入中にこれによる影響を完全に除くことがで
きる。According to the present invention, since the external signal and power source for online exchange are shared with the external power source necessary for operation, additional
Since there is no need to prepare a connector for online replacement, the printed board area can be used effectively.
The external power supply is automatically cut off when online.
This effect can be completely eliminated during extraction and insertion.
第１図は本発明の対象とする装置の概要図、第２図、第
３図は本発明の詳細な説明図である。
４・・・共通バス、５，６・・・共通電源、２６・・・
オンバスゲート、２８・・・アンドゲート、３３・・・
オンライン交かん用外部コネクタ、３７・・・外部電源
、３６・・・オンライン交かん用外部電源、３８・・・
通常運転用外部コネクタ。FIG. 1 is a schematic diagram of an apparatus to which the present invention is applied, and FIGS. 2 and 3 are detailed explanatory diagrams of the present invention. 4...Common bus, 5,6...Common power supply, 26...
On bus gate, 28... and gate, 33...
External connector for online exchange, 37... External power supply, 36... External power supply for online exchange, 38...
External connector for normal operation.
Claims (1)
され動作する装置において、その中のプリント板をオン
ラインで交換する際、その共通バス側から供給されてい
る共通電源を、その交換されるプリント板がその外に必
要とする電源のコネクタから得られるようにし、かつ、
共通バスへ不都合な混乱を与えない様にするロック信号
を上記電源コネクタへ共通に接続し、プリント板をオン
ラインで交換する際は、前記電源コネクタの外部側をは
ずし、共通電源とバスロック信号を与えるコネクタを接
続して行うことを特徴とするプリント板挿抜法。1. In a device in which multiple printed boards are connected to each other through a common bus, when replacing the printed boards online, the common power supplied from the common bus side is used to connect the printed boards to be replaced. so that the board can obtain from the connector any power it needs outside of it, and
A lock signal that prevents any inconvenient disruption to the common bus is commonly connected to the above power connector, and when replacing a printed circuit board online, disconnect the external side of the power connector and connect the common power supply and bus lock signal. A method for inserting and removing printed circuit boards, which is performed by connecting a connector that provides the power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2828185A JPS61188998A (en) | 1985-02-18 | 1985-02-18 | Printed circuit board insertion and removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2828185A JPS61188998A (en) | 1985-02-18 | 1985-02-18 | Printed circuit board insertion and removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61188998A true JPS61188998A (en) | 1986-08-22 |
Family
ID=12244212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2828185A Pending JPS61188998A (en) | 1985-02-18 | 1985-02-18 | Printed circuit board insertion and removal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61188998A (en) |
-
1985
- 1985-02-18 JP JP2828185A patent/JPS61188998A/en active Pending
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