JPS56140409A - Processing system for power failure and power restoration in sequence control device - Google Patents
Processing system for power failure and power restoration in sequence control deviceInfo
- Publication number
- JPS56140409A JPS56140409A JP4393480A JP4393480A JPS56140409A JP S56140409 A JPS56140409 A JP S56140409A JP 4393480 A JP4393480 A JP 4393480A JP 4393480 A JP4393480 A JP 4393480A JP S56140409 A JPS56140409 A JP S56140409A
- Authority
- JP
- Japan
- Prior art keywords
- power restoration
- power
- program
- processing
- control device
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/07—Programme control other than numerical control, i.e. in sequence controllers or logic controllers where the programme is defined in the fixed connection of electrical elements, e.g. potentiometers, counters, transistors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE:To perform the processing at the power failure time and the power restoration time, by providing an instruction area for the processing for power restoration in the program memory and by executing the program of this area at the power restoration time, in the sequence control device of the process incremental system due to the stored program control. CONSTITUTION:Step selector 202 is operated by process counter 208 to select a program of the process to be processed, and it is connected to instruction decoding part 203. Decoding part 203 decodes program contents and transmits output signal 204 to the external and sets conditions for increment, jump, and so on to operating part 205. When power is restored from power failure, power restoration control part 209 sets so that decoding part 203 executes the program, which is written in area SP of program memory 201 to execute the power restoration processing if power restoration processing mode switch 211 is turned on. Meanwhile, if switch 211 is turned off, process counter 208 is initialized at the power restoration time to execute processes from the first process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4393480A JPS5946002B2 (en) | 1980-04-03 | 1980-04-03 | Processing method during power outage and power restoration in sequence control equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4393480A JPS5946002B2 (en) | 1980-04-03 | 1980-04-03 | Processing method during power outage and power restoration in sequence control equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56140409A true JPS56140409A (en) | 1981-11-02 |
JPS5946002B2 JPS5946002B2 (en) | 1984-11-09 |
Family
ID=12677514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4393480A Expired JPS5946002B2 (en) | 1980-04-03 | 1980-04-03 | Processing method during power outage and power restoration in sequence control equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946002B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138902U (en) * | 1983-03-04 | 1984-09-17 | オムロン株式会社 | programmable controller |
JPH0296201A (en) * | 1988-09-30 | 1990-04-09 | Mazda Motor Corp | Abnormality restoring device for sequence control system machine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61195606U (en) * | 1985-05-29 | 1986-12-05 | ||
JPS6468003A (en) * | 1987-09-09 | 1989-03-14 | Uniden Kk | Electromagnetic horn and parabolic antenna unit using this horn |
JPH01107201U (en) * | 1988-01-08 | 1989-07-19 |
-
1980
- 1980-04-03 JP JP4393480A patent/JPS5946002B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59138902U (en) * | 1983-03-04 | 1984-09-17 | オムロン株式会社 | programmable controller |
JPH0296201A (en) * | 1988-09-30 | 1990-04-09 | Mazda Motor Corp | Abnormality restoring device for sequence control system machine |
Also Published As
Publication number | Publication date |
---|---|
JPS5946002B2 (en) | 1984-11-09 |
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