JPS5513410A - Selection control unit - Google Patents

Selection control unit

Info

Publication number
JPS5513410A
JPS5513410A JP8395578A JP8395578A JPS5513410A JP S5513410 A JPS5513410 A JP S5513410A JP 8395578 A JP8395578 A JP 8395578A JP 8395578 A JP8395578 A JP 8395578A JP S5513410 A JPS5513410 A JP S5513410A
Authority
JP
Japan
Prior art keywords
control meter
output
time constant
integration time
pid
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
JP8395578A
Other languages
Japanese (ja)
Inventor
Tetsuo Hiyama
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.)
Azbil Corp
Original Assignee
Azbil 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 Azbil Corp filed Critical Azbil Corp
Priority to JP8395578A priority Critical patent/JPS5513410A/en
Publication of JPS5513410A publication Critical patent/JPS5513410A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To increase the switching response speed for the selected control meter by controlling the integration time constant of the control meter in the process control.
CONSTITUTION: The switch is controlled by the output of zero detection circuit ZD1 and ZD2 in order to accelerate the follow-up in case the difference is not zero between output d1 of arithmetic circuit PID1 in control meter CNT1 and CNT2, output d2 of arithmetic circuit PID2 and output d of signal selection circuit SEL each. As a result, the integration time constant of the control meter is shortened. And when the difference of output becomes zero, the integration time constant is returned to the original value to carry out the ordinaly PID operation. In such way, the switching response speed can be increased for the control meter, and as a result the timing switching to the queuing control meter can be increased to attain the original purpose of the control meter.
COPYRIGHT: (C)1980,JPO&Japio
JP8395578A 1978-07-12 1978-07-12 Selection control unit Pending JPS5513410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8395578A JPS5513410A (en) 1978-07-12 1978-07-12 Selection control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8395578A JPS5513410A (en) 1978-07-12 1978-07-12 Selection control unit

Publications (1)

Publication Number Publication Date
JPS5513410A true JPS5513410A (en) 1980-01-30

Family

ID=13816994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8395578A Pending JPS5513410A (en) 1978-07-12 1978-07-12 Selection control unit

Country Status (1)

Country Link
JP (1) JPS5513410A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134701A (en) * 1981-02-12 1982-08-20 Toshiba Corp Control circuit
JPS57159301A (en) * 1981-03-27 1982-10-01 Toshiba Corp Control switching device
JPS5953403U (en) * 1982-09-27 1984-04-07 株式会社明電舎 Bumpless signal switching circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134701A (en) * 1981-02-12 1982-08-20 Toshiba Corp Control circuit
JPS57159301A (en) * 1981-03-27 1982-10-01 Toshiba Corp Control switching device
JPS5953403U (en) * 1982-09-27 1984-04-07 株式会社明電舎 Bumpless signal switching circuit

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