JPS5713515A - Process control checking circuit - Google Patents
Process control checking circuitInfo
- Publication number
- JPS5713515A JPS5713515A JP8831080A JP8831080A JPS5713515A JP S5713515 A JPS5713515 A JP S5713515A JP 8831080 A JP8831080 A JP 8831080A JP 8831080 A JP8831080 A JP 8831080A JP S5713515 A JPS5713515 A JP S5713515A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- checking
- circuit
- process control
- inputted
- 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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
PURPOSE:To check a process control easily, by changing over a changeover switch to a checking side, and outputting a process control signal which has been stored at the checking start time point, in case when a checking start signal is provided and a variation of a process signal is below a prescribed value. CONSTITUTION:When a start signal TST os checking start is not inputted, changeover switches 4-1-4-3 are located as shown in the figure, a controller CT1 to be checked inputs a process signal PCI through a circuit 2, provides a control signal 1a to process device through the changeover switch 4-3, and also stores it in a memory circuit 6. At the checking time when the signal TST is inputted, if a variation of the signal PCI is below prescribed value and a process control system is stable, the circuit 2 outputs a signal 2a, and sets the changeover switches 4-1- 4-3 to the reverse position to that which is shown in the figure, by a signal 3a from a switching circuit 3. In this way, a signal 5a from a checking signal generator 5 is inputted to CT1, and the circuit 6 outputs a signal 6a consisting of the signal 1a. When the signal PCI is varied, the signal 2a is not outputted, checking of CT1 is suspended, and CT1 executes a regular operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8831080A JPS5713515A (en) | 1980-06-27 | 1980-06-27 | Process control checking circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8831080A JPS5713515A (en) | 1980-06-27 | 1980-06-27 | Process control checking circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5713515A true JPS5713515A (en) | 1982-01-23 |
| JPH0231403B2 JPH0231403B2 (en) | 1990-07-13 |
Family
ID=13939350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8831080A Granted JPS5713515A (en) | 1980-06-27 | 1980-06-27 | Process control checking circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5713515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131873A (en) * | 1983-12-15 | 1985-07-13 | 株式会社東芝 | Cerqmic-metal direct bonded body and manufacture |
| US5561321A (en) * | 1992-07-03 | 1996-10-01 | Noritake Co., Ltd. | Ceramic-metal composite structure and process of producing same |
-
1980
- 1980-06-27 JP JP8831080A patent/JPS5713515A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131873A (en) * | 1983-12-15 | 1985-07-13 | 株式会社東芝 | Cerqmic-metal direct bonded body and manufacture |
| US5561321A (en) * | 1992-07-03 | 1996-10-01 | Noritake Co., Ltd. | Ceramic-metal composite structure and process of producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0231403B2 (en) | 1990-07-13 |
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