JPS57108901A - Hybrid type process controller - Google Patents

Hybrid type process controller

Info

Publication number
JPS57108901A
JPS57108901A JP18424080A JP18424080A JPS57108901A JP S57108901 A JPS57108901 A JP S57108901A JP 18424080 A JP18424080 A JP 18424080A JP 18424080 A JP18424080 A JP 18424080A JP S57108901 A JPS57108901 A JP S57108901A
Authority
JP
Japan
Prior art keywords
desired value
manipulated
manipulated variable
control loop
variable
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
JP18424080A
Other languages
Japanese (ja)
Inventor
Kensuke Kawai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP18424080A priority Critical patent/JPS57108901A/en
Publication of JPS57108901A publication Critical patent/JPS57108901A/en
Pending legal-status Critical Current

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
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.

Abstract

PURPOSE:To improve control performance superposing the manipulated variables of both digital and analog systems so that a feedback amount from a single control loop is controlled to a desired value. CONSTITUTION:With regard to the control target of a single control loop, a desired value FS based upon a reference desired-value signal REF and a desired value RS based upon a desired-value setter RST are selected on a plant condition CND, and thus the desired value ST of a PID controller 31 is obtained. The PID controller 31 obtains an analog manipulated variable MA from a deviation signal ER between the process variable of the single control loop 1 to be controlled and a desired value ST. In a digital subsystem 2, an arithmetic device 22 performs arithmetic in accordance with prescribed algorithm by using an input from an analog subsystem 3 and the plant condition CND, and a digital manipulated-variable setter 34 selects a manipulated variable MD. Then, the manipulated variable MD and a manipulated variable MA are superposed to obtain a manipulated variable MH, which is applied to the single control loop 1.
JP18424080A 1980-12-25 1980-12-25 Hybrid type process controller Pending JPS57108901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18424080A JPS57108901A (en) 1980-12-25 1980-12-25 Hybrid type process controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18424080A JPS57108901A (en) 1980-12-25 1980-12-25 Hybrid type process controller

Publications (1)

Publication Number Publication Date
JPS57108901A true JPS57108901A (en) 1982-07-07

Family

ID=16149828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18424080A Pending JPS57108901A (en) 1980-12-25 1980-12-25 Hybrid type process controller

Country Status (1)

Country Link
JP (1) JPS57108901A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121504A (en) * 1984-07-09 1986-01-30 Mitsubishi Electric Corp Process controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121504A (en) * 1984-07-09 1986-01-30 Mitsubishi Electric Corp Process controller

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