JPS6432301A - Process controller - Google Patents
Process controllerInfo
- Publication number
- JPS6432301A JPS6432301A JP18762487A JP18762487A JPS6432301A JP S6432301 A JPS6432301 A JP S6432301A JP 18762487 A JP18762487 A JP 18762487A JP 18762487 A JP18762487 A JP 18762487A JP S6432301 A JPS6432301 A JP S6432301A
- Authority
- JP
- Japan
- Prior art keywords
- pid control
- control
- arithmetic part
- variable
- fetching
- 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
Landscapes
- Feedback Control In General (AREA)
Abstract
PURPOSE:To improve the performance and reliability of a process controller by fetching either of selected output signal out of a multi-variable control arithmetic part or a PID control part and calculating of the manipulated variable of a fetching process. CONSTITUTION:When the dynamic characteristics of a process have a change, an operator produces a circuit switch signal to change a multi-variable control arithmetic part 1 to a PID control arithmetic part 2 and chooses the PID control where the stability is assured in a wide working range to stabilize the process. The PID control is changed to the multi-variable control by the switch signal after confirming that the process is satisfactorily stabilized by the PID control at a point near a normal working point. Furthermore no shock is produced by switching actions since a state value memory element of a control system is shared at a manipulated variable position arithmetic part 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18762487A JPS6432301A (en) | 1987-07-29 | 1987-07-29 | Process controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18762487A JPS6432301A (en) | 1987-07-29 | 1987-07-29 | Process controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432301A true JPS6432301A (en) | 1989-02-02 |
Family
ID=16209364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18762487A Pending JPS6432301A (en) | 1987-07-29 | 1987-07-29 | Process controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432301A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04310102A (en) * | 1991-04-09 | 1992-11-02 | Hitachi Ltd | Method and device for control and state value display method |
JPH05177321A (en) * | 1992-01-06 | 1993-07-20 | Nippon Steel Corp | Device for controlling mold level |
JPH05189009A (en) * | 1992-01-09 | 1993-07-30 | Nippon Steel Corp | Controller |
JP2007191163A (en) * | 2006-01-17 | 2007-08-02 | Yuwa Sangyo Kk | Filling apparatus and filling method |
US8864884B2 (en) | 2007-07-13 | 2014-10-21 | Donaldson Company, Inc. | Contaminant control filter with fill port |
-
1987
- 1987-07-29 JP JP18762487A patent/JPS6432301A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04310102A (en) * | 1991-04-09 | 1992-11-02 | Hitachi Ltd | Method and device for control and state value display method |
JPH05177321A (en) * | 1992-01-06 | 1993-07-20 | Nippon Steel Corp | Device for controlling mold level |
JPH05189009A (en) * | 1992-01-09 | 1993-07-30 | Nippon Steel Corp | Controller |
JP2007191163A (en) * | 2006-01-17 | 2007-08-02 | Yuwa Sangyo Kk | Filling apparatus and filling method |
US8864884B2 (en) | 2007-07-13 | 2014-10-21 | Donaldson Company, Inc. | Contaminant control filter with fill port |
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