JPS5574602A - Process control unit - Google Patents
Process control unitInfo
- Publication number
- JPS5574602A JPS5574602A JP14726778A JP14726778A JPS5574602A JP S5574602 A JPS5574602 A JP S5574602A JP 14726778 A JP14726778 A JP 14726778A JP 14726778 A JP14726778 A JP 14726778A JP S5574602 A JPS5574602 A JP S5574602A
- Authority
- JP
- Japan
- Prior art keywords
- objective
- process variable
- program
- singular point
- output
- 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
- Feedback Control In General (AREA)
Abstract
PURPOSE: To prevent the disturbance of control at the singular point where the gradient of objective of program is changed, by compulsively altering the output to the objective when the process variable approaches to the singular point and taking operation output at the operation end to the start point of operation after that.
CONSTITUTION: The program setter 11 sets the objective with the process, outputs calculates the deviation with the subtraction of the amount of process variable from the objective value at the deviation circuit 12, and operates the controlled quantity in matching with the process variable from this deviation at the integrating operation circuit 13. That is, from the process variable signal and program information of the setter 11, the approach of process variable to the singular point of the objective value or of time is detected 19 to activate the relay 13 instantly. The control signal is outputted, and the controlled output of the operation end in response to the control signal is taken as desired objective with the operation circuit 20 so that the controlled output at the operation end can be the operation start point that. Thus, the disturbance at the singular point where the gradient of the objective of program is changed can be avoided.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14726778A JPS5574602A (en) | 1978-11-30 | 1978-11-30 | Process control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14726778A JPS5574602A (en) | 1978-11-30 | 1978-11-30 | Process control unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5574602A true JPS5574602A (en) | 1980-06-05 |
JPS6145242B2 JPS6145242B2 (en) | 1986-10-07 |
Family
ID=15426353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14726778A Granted JPS5574602A (en) | 1978-11-30 | 1978-11-30 | Process control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574602A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01287703A (en) * | 1988-05-14 | 1989-11-20 | Nkk Corp | Method for controlling variable value control system |
-
1978
- 1978-11-30 JP JP14726778A patent/JPS5574602A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01287703A (en) * | 1988-05-14 | 1989-11-20 | Nkk Corp | Method for controlling variable value control system |
Also Published As
Publication number | Publication date |
---|---|
JPS6145242B2 (en) | 1986-10-07 |
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