JPS54120378A - Sequence controller - Google Patents
Sequence controllerInfo
- Publication number
- JPS54120378A JPS54120378A JP2680478A JP2680478A JPS54120378A JP S54120378 A JPS54120378 A JP S54120378A JP 2680478 A JP2680478 A JP 2680478A JP 2680478 A JP2680478 A JP 2680478A JP S54120378 A JPS54120378 A JP S54120378A
- Authority
- JP
- Japan
- Prior art keywords
- scanning
- time
- resister
- counter
- gate
- 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
Landscapes
- Testing And Monitoring For Control Systems (AREA)
- Feedback Control In General (AREA)
- Programmable Controllers (AREA)
Abstract
PURPOSE:To remove the out of order previously when a scanning time is beyond the reference time, by means of calculating the time by which a sequence program is once scanned, and indicating the longest time of the scanning. CONSTITUTION:A gate 19 is opened and a counter 15 calculates the clock pulse by the starting of once scanning of a sequence program. The gate 19 is closed by the finishing of once scanning of the sequence program, and the calculation of the clock pulse is stopped. The counting value of the counter 15 is compared with the value of a resister 16 by a comparator 17, and if in a case when the counting value of the counter 15 is large, it is memorized to the resister 16 by means of opening a gate 20. Scanning time is calculated every the scanning being repeated, and the longest time is memorized in the resister 16. If one cycle is finished, the value of the resister 16 is indicated by an indicator 18.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2680478A JPS54120378A (en) | 1978-03-09 | 1978-03-09 | Sequence controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2680478A JPS54120378A (en) | 1978-03-09 | 1978-03-09 | Sequence controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54120378A true JPS54120378A (en) | 1979-09-18 |
JPS6118763B2 JPS6118763B2 (en) | 1986-05-14 |
Family
ID=12203481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2680478A Granted JPS54120378A (en) | 1978-03-09 | 1978-03-09 | Sequence controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54120378A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57134708A (en) * | 1981-02-14 | 1982-08-20 | Omron Tateisi Electronics Co | Scanning type programmable controller |
JPS57143606A (en) * | 1981-03-03 | 1982-09-04 | Omron Tateisi Electronics Co | Scanning type programmable controller |
JPS57169809A (en) * | 1981-04-13 | 1982-10-19 | Omron Tateisi Electronics Co | Programmable logic controller |
JPS5835605A (en) * | 1981-08-26 | 1983-03-02 | Fuji Facom Corp | Instrumentation controller |
JPS6215606A (en) * | 1985-07-15 | 1987-01-24 | Fuji Electric Co Ltd | Method for confirming executing speed of programmable controller |
JPH02212043A (en) * | 1989-02-08 | 1990-08-23 | Makino Milling Mach Co Ltd | Method and device for foreseeing accident of machine tool |
-
1978
- 1978-03-09 JP JP2680478A patent/JPS54120378A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57134708A (en) * | 1981-02-14 | 1982-08-20 | Omron Tateisi Electronics Co | Scanning type programmable controller |
JPS57143606A (en) * | 1981-03-03 | 1982-09-04 | Omron Tateisi Electronics Co | Scanning type programmable controller |
JPS57169809A (en) * | 1981-04-13 | 1982-10-19 | Omron Tateisi Electronics Co | Programmable logic controller |
JPS5835605A (en) * | 1981-08-26 | 1983-03-02 | Fuji Facom Corp | Instrumentation controller |
JPS6215606A (en) * | 1985-07-15 | 1987-01-24 | Fuji Electric Co Ltd | Method for confirming executing speed of programmable controller |
JPH02212043A (en) * | 1989-02-08 | 1990-08-23 | Makino Milling Mach Co Ltd | Method and device for foreseeing accident of machine tool |
Also Published As
Publication number | Publication date |
---|---|
JPS6118763B2 (en) | 1986-05-14 |
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