JPS59121800U - Control device with memory check function - Google Patents
Control device with memory check functionInfo
- Publication number
- JPS59121800U JPS59121800U JP1483683U JP1483683U JPS59121800U JP S59121800 U JPS59121800 U JP S59121800U JP 1483683 U JP1483683 U JP 1483683U JP 1483683 U JP1483683 U JP 1483683U JP S59121800 U JPS59121800 U JP S59121800U
- Authority
- JP
- Japan
- Prior art keywords
- memory
- variable memory
- control device
- data
- control
- 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
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
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
第１図はこの考案の制御装置のブロック図、第２図はこ
の゛考案の制御装置の動作を示すフローチャート、第３
図はこの考案の他の実施例のフローチャートである。
１・・・・・・制御装置、２・・・・・・入力信号、３
・・・・・・制御信号、４・・・・・・演算制御部、５
・・・・・・可変メモリ（ＲＡＭ）、６・・・・・・固
定メモーバＲＯＭ）、７・・・・・・スイッチ群。
第２図
第３図Fig. 1 is a block diagram of the control device of this invention, Fig. 2 is a flow chart showing the operation of the control device of this invention, and Fig. 3 is a block diagram of the control device of this invention.
The figure is a flowchart of another embodiment of this invention. 1...Control device, 2...Input signal, 3
...Control signal, 4...Arithmetic control section, 5
. . . variable memory (RAM), 6 . . . fixed memover ROM), 7 . . . switch group. Figure 2 Figure 3
Claims (1)
時に上記固定メモリに格納されているデータを選択して
上記可変メモリに転送し、上記可変メモリのデータに基
づいて制御を実行する制御装置において、制御開始時に
上記可変メモリに格納されているデータのうち制御動作
の実行によって変化しないデータに基づいてあらかじめ
決められた形式でチェックデータを算出して上記可変メ
モリに格納すると共に、所定のタイミングで再度上記可
変メモリ上の変化しないデータに基づいてチェックデー
タを算出して上記可変メモリに格納しであるチェックデ
ータと比較することにより、可変メモリの動作チェック
を行うメモリ点検機能を有する制御装置。A control device that has an arithmetic control unit, a fixed memory, and a variable memory, selects data stored in the fixed memory at the start of control, transfers it to the variable memory, and executes control based on the data in the variable memory. In this step, check data is calculated in a predetermined format based on data that does not change due to execution of the control operation among the data stored in the variable memory at the start of control, and is stored in the variable memory, and at a predetermined timing. A control device having a memory inspection function that checks the operation of the variable memory by calculating check data again based on the unchanging data on the variable memory and comparing it with the check data stored in the variable memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1483683U JPS59121800U (en) | 1983-02-03 | 1983-02-03 | Control device with memory check function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1483683U JPS59121800U (en) | 1983-02-03 | 1983-02-03 | Control device with memory check function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59121800U true JPS59121800U (en) | 1984-08-16 |
Family
ID=30146181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1483683U Pending JPS59121800U (en) | 1983-02-03 | 1983-02-03 | Control device with memory check function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59121800U (en) |
-
1983
- 1983-02-03 JP JP1483683U patent/JPS59121800U/en active Pending
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