JPS55131803A - Digital controller - Google Patents
Digital controllerInfo
- Publication number
- JPS55131803A JPS55131803A JP3946379A JP3946379A JPS55131803A JP S55131803 A JPS55131803 A JP S55131803A JP 3946379 A JP3946379 A JP 3946379A JP 3946379 A JP3946379 A JP 3946379A JP S55131803 A JPS55131803 A JP S55131803A
- Authority
- JP
- Japan
- Prior art keywords
- arithmetic
- functional blocks
- freely
- pid
- parameter
- 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 make a connection between functional blocks while setting a parameter freely, by freely selecting needed functional blocks corresponding to a process without preparing complex and high-degree control arithmetic blocks by using a microprocessor.
CONSTITUTION: Process input value PV of PID block II with the arithmetic control function of proportional-plus-integral-plus-derivative-control (PID) is stored in arithmetic value storage memory A and arithmetic of instruction PID is carried out according to parameter constants set by set values, such as proportional constant P, integral constant I, differential constant D, desired value SV, and deviation value limit EL. Then, a control mode and alarm output number set by a setter are judged and arithmetic output MV is stored in arithmetic storage memory A, thereby generating bit output B by assigning an alarm output when a difference between desired value SV and arithmetic input PV exceeds deviation value limit EL. Then, functional blocks are selected freely corresponding to the process and while the functional blocks are connected together, a parameter is freely set.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3946379A JPS55131803A (en) | 1979-03-30 | 1979-03-30 | Digital controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3946379A JPS55131803A (en) | 1979-03-30 | 1979-03-30 | Digital controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55131803A true JPS55131803A (en) | 1980-10-14 |
Family
ID=12553735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3946379A Pending JPS55131803A (en) | 1979-03-30 | 1979-03-30 | Digital controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55131803A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794803A (en) * | 1980-12-05 | 1982-06-12 | Hitachi Ltd | Adjusting meter |
JPS59133607A (en) * | 1983-01-19 | 1984-08-01 | Fuji Facom Corp | Process controller |
JPS60189005A (en) * | 1984-03-08 | 1985-09-26 | Hitachi Ltd | Distributed control device |
JPS63131201A (en) * | 1986-11-21 | 1988-06-03 | Hitachi Ltd | Variety setting unit |
JPH04332001A (en) * | 1991-05-07 | 1992-11-19 | Yokogawa Electric Corp | Process control device |
-
1979
- 1979-03-30 JP JP3946379A patent/JPS55131803A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5794803A (en) * | 1980-12-05 | 1982-06-12 | Hitachi Ltd | Adjusting meter |
JPS59133607A (en) * | 1983-01-19 | 1984-08-01 | Fuji Facom Corp | Process controller |
JPS60189005A (en) * | 1984-03-08 | 1985-09-26 | Hitachi Ltd | Distributed control device |
JPS63131201A (en) * | 1986-11-21 | 1988-06-03 | Hitachi Ltd | Variety setting unit |
JPH04332001A (en) * | 1991-05-07 | 1992-11-19 | Yokogawa Electric Corp | Process control device |
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