JPS63135439U - - Google Patents
Info
- Publication number
- JPS63135439U JPS63135439U JP2458287U JP2458287U JPS63135439U JP S63135439 U JPS63135439 U JP S63135439U JP 2458287 U JP2458287 U JP 2458287U JP 2458287 U JP2458287 U JP 2458287U JP S63135439 U JPS63135439 U JP S63135439U
- Authority
- JP
- Japan
- Prior art keywords
- reset
- outputs
- terminal
- periodic pulse
- input
- 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
- 230000000737 periodic effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Debugging And Monitoring (AREA)
Description
図面は、この考案の暴走防止回路の実施例を示
し、第１図および第２図は実施例１、第３図ない
し第５図は実施例２を示し、第１図はブロツク図
、第２図ａ〜ｅは動作説明用タイミングチヤート
、第３図はブロツク図、第４図ａ，ｂは動作説明
用タイミングチヤート、第５図は動作説明用フロ
ーチヤートである。
１……マイコン、２……リセツト手段、５……
ＥＸオアゲート、６，７……第１、第２モノマル
チ、Ｒｓ……リセツト端子、Ｐｏ……周期パルス
出力端子。
The drawings show an embodiment of the runaway prevention circuit of this invention, FIGS. 1 and 2 show the first embodiment, FIGS. 3 to 5 show the second embodiment, FIG. 1 is a block diagram, and FIG. 3 is a block diagram, FIGS. 4a and 4b are timing charts for explaining the operation, and FIG. 5 is a flow chart for explaining the operation. 1...Microcomputer, 2...Resetting means, 5...
EX OR gate, 6, 7...first and second monomulti, Rs...reset terminal, Po...periodic pulse output terminal.
Claims (1)
端子を有し、前記リセツト端子へのリセツト信号
の入力により一定の状態になり前記周期パルス出
力端子より周期パルスを出力するとともに、予め
設定されたプログラムに従つて所定の処理を行な
うマイクロコンピユータと、 前記マイクロコンピユータの駆動用電源の投入
から所定時間遅れて前記リセツト端子にリセツト
信号を出力するリセツト手段と、 一方の入力端子に前記周期パルスが入力される
排他的論理和ゲートと、 前記ゲートの出力がトリガとして入力され前記
周期パルスの欠落時に欠落検出パルスを出力する
第１モノマルチバイブレータと、 前記検出パルスがトリガとして入力され前記リ
セツト手段の入力端子および前記ゲートの他方の
入力端子にリセツト指令パルスを出力する第２モ
ノマルチバイブレータと を備えた暴走防止回路。[Claims for Utility Model Registration] It has at least a reset terminal and a periodic pulse output terminal, and when a reset signal is input to the reset terminal, it enters a certain state and outputs a periodic pulse from the periodic pulse output terminal, and also outputs a periodic pulse from the periodic pulse output terminal. a microcomputer that performs predetermined processing according to a programmed program; a reset means that outputs a reset signal to the reset terminal after a predetermined time delay after turning on the driving power of the microcomputer; and a reset means that outputs the periodic pulse to one input terminal. a first mono-multivibrator to which the output of the gate is input as a trigger and outputs a missing detection pulse when the periodic pulse is missing; and a first mono-multivibrator to which the detection pulse is input as a trigger to the reset means. and a second mono-multivibrator that outputs a reset command pulse to the input terminal of the gate and the other input terminal of the gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2458287U JPS63135439U (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2458287U JPS63135439U (en) | 1987-02-20 | 1987-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63135439U true JPS63135439U (en) | 1988-09-06 |
Family
ID=30823949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2458287U Pending JPS63135439U (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63135439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008135059A (en) * | 2001-10-01 | 2008-06-12 | Zevex Inc | Precision dosage apparatus, system and method |
-
1987
- 1987-02-20 JP JP2458287U patent/JPS63135439U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008135059A (en) * | 2001-10-01 | 2008-06-12 | Zevex Inc | Precision dosage apparatus, system and method |
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