JPS55131803A - Digital controller - Google Patents

Digital controller

Info

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
Application number
JP3946379A
Other languages
Japanese (ja)
Inventor
Katsumi Matsutani
Teruhiko Tsuchiya
Katsura Mimura
Mitsuo Asano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3946379A priority Critical patent/JPS55131803A/en
Publication of JPS55131803A publication Critical patent/JPS55131803A/en
Pending legal-status Critical Current

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  • 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
JP3946379A 1979-03-30 1979-03-30 Digital controller Pending JPS55131803A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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