JPS6380648U - - Google Patents
Info
- Publication number
- JPS6380648U JPS6380648U JP17446686U JP17446686U JPS6380648U JP S6380648 U JPS6380648 U JP S6380648U JP 17446686 U JP17446686 U JP 17446686U JP 17446686 U JP17446686 U JP 17446686U JP S6380648 U JPS6380648 U JP S6380648U
- Authority
- JP
- Japan
- Prior art keywords
- microcomputer
- counter
- pulse
- reset pulse
- generation circuit
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Debugging And Monitoring (AREA)
Description
第１図は本考案の一実施例の安全回路のブロツ
ク図、第２図は同マイコンにプログラムされたシ
ーケンスのフローチヤート図である。
１…商用電源、３…マイコン、４…カウンター
、５…パルス発生回路、６…カウンターパルス、
８…リセツトパルス。
FIG. 1 is a block diagram of a safety circuit according to an embodiment of the present invention, and FIG. 2 is a flowchart of a sequence programmed into the microcomputer. 1...Commercial power supply, 3...Microcomputer, 4...Counter, 5...Pulse generation circuit, 6...Counter pulse,
8...Reset pulse.
Claims (1)
用電源１を整流してパルスを発生させるパルス発
生回路５とを設け、マイコン３及びパルス発生回
路５から一定周期でリセツトパルス７及びカウン
ターパルス６をカウンター４に入力してカウンタ
ー４をリセツトし、又カウンター４の出力をマイ
コン３のリセツトパルス８としてマイコン３に接
続し、マイコン３からのリセツトパルス７がとだ
えた時カウンター４からリセツトパルス８をマイ
コン３に入力してマイコン３を停止させることを
特徴とするマイコンの暴走安全回路。 As an external circuit for the microcomputer 3, a counter 4 and a pulse generation circuit 5 that rectifies the commercial power supply 1 and generates pulses are provided, and the microcomputer 3 and the pulse generation circuit 5 send a reset pulse 7 and a counter pulse 6 to the counter 4 at regular intervals. The output of the counter 4 is connected to the microcomputer 3 as the reset pulse 8 of the microcomputer 3, and when the reset pulse 7 from the microcomputer 3 stops, the reset pulse 8 is input from the counter 4 to the microcomputer 3. A runaway safety circuit for a microcomputer is characterized in that the microcomputer 3 is stopped by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17446686U JPS6380648U (en) | 1986-11-13 | 1986-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17446686U JPS6380648U (en) | 1986-11-13 | 1986-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6380648U true JPS6380648U (en) | 1988-05-27 |
Family
ID=31112871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17446686U Pending JPS6380648U (en) | 1986-11-13 | 1986-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6380648U (en) |
-
1986
- 1986-11-13 JP JP17446686U patent/JPS6380648U/ja active Pending