JPS57139805A - Process controlling method - Google Patents

Process controlling method

Info

Publication number
JPS57139805A
JPS57139805A JP2586181A JP2586181A JPS57139805A JP S57139805 A JPS57139805 A JP S57139805A JP 2586181 A JP2586181 A JP 2586181A JP 2586181 A JP2586181 A JP 2586181A JP S57139805 A JPS57139805 A JP S57139805A
Authority
JP
Japan
Prior art keywords
vtd
integral
case
signal
exceeded
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
Application number
JP2586181A
Other languages
Japanese (ja)
Other versions
JPS6124724B2 (en
Inventor
Shinichi Nakane
Hiroshi Fujieda
Toru Kobayashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2586181A priority Critical patent/JPS57139805A/en
Publication of JPS57139805A publication Critical patent/JPS57139805A/en
Publication of JPS6124724B2 publication Critical patent/JPS6124724B2/ja
Granted 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
    • G05B5/00—Anti-hunting arrangements
    • G05B5/01—Anti-hunting arrangements electric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:Not only to remarkably reduce an integral dose in case when a process load has been varied suddenly, but also to shorten a setting time, by deriving a fluctuation ratio of the load, and initializing an integral term to an integral value corresponding to this ratio. CONSTITUTION:A control part 1 inputs a target value TUP and a process variable signal TWO, its deviation is made to pass through an integral operation control part 8, and VK, VTD and VTi are obtained as a result of operation. The result of operation is inputted to a selecting part 9 as TC1=VK+VTi+ VTD. Also, a deciding part 10 outputs a control signal Si to the integral operation control part 8 and the selecting part 9 in case when the TUP is not varied and the VTD has exceeded some first set value VS1. In accordance with the signal Si, the selecting part 9 selects a regular PID control output TC=TC1, or TC=TCmin in case when the Si signal has exceeded the negative side VS1 of the VTD, and TC=TCmax in case when the VTD has exceeded the positive side VS1, and controls the process part as an output of the control part.
JP2586181A 1981-02-23 1981-02-23 Process controlling method Granted JPS57139805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2586181A JPS57139805A (en) 1981-02-23 1981-02-23 Process controlling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2586181A JPS57139805A (en) 1981-02-23 1981-02-23 Process controlling method

Publications (2)

Publication Number Publication Date
JPS57139805A true JPS57139805A (en) 1982-08-30
JPS6124724B2 JPS6124724B2 (en) 1986-06-12

Family

ID=12177586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2586181A Granted JPS57139805A (en) 1981-02-23 1981-02-23 Process controlling method

Country Status (1)

Country Link
JP (1) JPS57139805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002211A1 (en) * 1993-07-05 1995-01-19 Siemens Aktiengesellschaft Controlling device
JP2003014157A (en) * 2001-06-27 2003-01-15 Koso Service Kk Valve positioner and control unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63195312U (en) * 1987-05-29 1988-12-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002211A1 (en) * 1993-07-05 1995-01-19 Siemens Aktiengesellschaft Controlling device
JP2003014157A (en) * 2001-06-27 2003-01-15 Koso Service Kk Valve positioner and control unit

Also Published As

Publication number Publication date
JPS6124724B2 (en) 1986-06-12

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