JPS5495148A - Set data protection method - Google Patents
Set data protection methodInfo
- Publication number
- JPS5495148A JPS5495148A JP193078A JP193078A JPS5495148A JP S5495148 A JPS5495148 A JP S5495148A JP 193078 A JP193078 A JP 193078A JP 193078 A JP193078 A JP 193078A JP S5495148 A JPS5495148 A JP S5495148A
- Authority
- JP
- Japan
- Prior art keywords
- operator
- set data
- password
- registered
- level
- 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
- 230000006870 function Effects 0.000 abstract 2
- 230000007257 malfunction Effects 0.000 abstract 1
Abstract
PURPOSE:To prevent the careless change of controlling set data by inputting a password by each operator at a function selection time and fixing a set available range of control data according to the work level registered by the operator. CONSTITUTION:In the set data protection method for preventing malfunction in a process controlling computer which uses set data c of memory b dependently upon CPU a to control process e through I/O device d, when set data c of memory b is changed, password k for each operator and operation level permitted for the operator are previously registered to collate the passward, which is inputted by the operator at a change operation time, with registered password k; and when the inputted password is one of registered passwords k, operation level 1 permitted for the operator is calculated. Then, the caluculated operation level is compared with set function level m selected by the operator, and operation is permitted in case of 1>=m.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP193078A JPS5495148A (en) | 1978-01-13 | 1978-01-13 | Set data protection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP193078A JPS5495148A (en) | 1978-01-13 | 1978-01-13 | Set data protection method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5495148A true JPS5495148A (en) | 1979-07-27 |
Family
ID=11515315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP193078A Pending JPS5495148A (en) | 1978-01-13 | 1978-01-13 | Set data protection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5495148A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57206977A (en) * | 1981-06-15 | 1982-12-18 | Fujitsu Ltd | Document processing system |
JPS5843097A (en) * | 1981-08-25 | 1983-03-12 | アメリカン・デイストリクト・テレグラフ・カンパニ− | Security system with plurality of access levels |
JPS5885500A (en) * | 1981-11-17 | 1983-05-21 | 池上 健三 | Voice recognition equipment |
JPS603748A (en) * | 1983-06-22 | 1985-01-10 | Toshiba Corp | Collating method of memory for controller |
JPS62177667A (en) * | 1986-01-30 | 1987-08-04 | Tokyo Electric Power Co Inc:The | Information system |
JPS62134162U (en) * | 1986-02-13 | 1987-08-24 | ||
JPS6481014A (en) * | 1987-09-24 | 1989-03-27 | Hitachi Ltd | Aural instruction device for operation of equipment |
JPH0212334A (en) * | 1988-06-30 | 1990-01-17 | Yamatake Honeywell Co Ltd | Access control method |
JPH04347948A (en) * | 1991-01-25 | 1992-12-03 | Kokusai Electric Co Ltd | secret communication device |
JPH05158831A (en) * | 1991-12-06 | 1993-06-25 | Tokyo Electric Co Ltd | Program writing device |
US6867749B1 (en) | 1998-04-27 | 2005-03-15 | Digital Electronics Corporation | Control system, display device, control-use host computer, and data transmission method |
-
1978
- 1978-01-13 JP JP193078A patent/JPS5495148A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57206977A (en) * | 1981-06-15 | 1982-12-18 | Fujitsu Ltd | Document processing system |
JPS5843097A (en) * | 1981-08-25 | 1983-03-12 | アメリカン・デイストリクト・テレグラフ・カンパニ− | Security system with plurality of access levels |
JPS5885500A (en) * | 1981-11-17 | 1983-05-21 | 池上 健三 | Voice recognition equipment |
JPS603748A (en) * | 1983-06-22 | 1985-01-10 | Toshiba Corp | Collating method of memory for controller |
JPS62177667A (en) * | 1986-01-30 | 1987-08-04 | Tokyo Electric Power Co Inc:The | Information system |
JPS62134162U (en) * | 1986-02-13 | 1987-08-24 | ||
JPS6481014A (en) * | 1987-09-24 | 1989-03-27 | Hitachi Ltd | Aural instruction device for operation of equipment |
JPH0212334A (en) * | 1988-06-30 | 1990-01-17 | Yamatake Honeywell Co Ltd | Access control method |
JPH04347948A (en) * | 1991-01-25 | 1992-12-03 | Kokusai Electric Co Ltd | secret communication device |
JPH05158831A (en) * | 1991-12-06 | 1993-06-25 | Tokyo Electric Co Ltd | Program writing device |
US6867749B1 (en) | 1998-04-27 | 2005-03-15 | Digital Electronics Corporation | Control system, display device, control-use host computer, and data transmission method |
US7103421B2 (en) | 1998-04-27 | 2006-09-05 | Digital Electronics Corporation | Control system, display device, control-use host computer, and data transmission method |
US7716354B2 (en) | 1998-04-27 | 2010-05-11 | Digital Electronics Corporation | Control system, display device, control-use host computer, and data transmission method |
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