NL7602220A - PROCESS CONTROL SYSTEM. - Google Patents

PROCESS CONTROL SYSTEM.

Info

Publication number
NL7602220A
NL7602220A NL7602220A NL7602220A NL7602220A NL 7602220 A NL7602220 A NL 7602220A NL 7602220 A NL7602220 A NL 7602220A NL 7602220 A NL7602220 A NL 7602220A NL 7602220 A NL7602220 A NL 7602220A
Authority
NL
Netherlands
Prior art keywords
control system
process control
control
Prior art date
Application number
NL7602220A
Other languages
Dutch (nl)
Original Assignee
Honeywell Inc
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
Priority claimed from US05/557,791 external-priority patent/US4009372A/en
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of NL7602220A publication Critical patent/NL7602220A/en

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
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric
    • 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
    • G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
    • G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Feedback Control In General (AREA)
  • Electronic Switches (AREA)
NL7602220A 1975-03-12 1976-03-03 PROCESS CONTROL SYSTEM. NL7602220A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/557,791 US4009372A (en) 1975-03-12 1975-03-12 Manual override using a variable clock frequency in a control system employing a D/A converter to translate digital control signals from a digital computer to analog signals for operating process control devices
US57050075A 1975-04-22 1975-04-22

Publications (1)

Publication Number Publication Date
NL7602220A true NL7602220A (en) 1976-09-14

Family

ID=27071537

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7602220A NL7602220A (en) 1975-03-12 1976-03-03 PROCESS CONTROL SYSTEM.

Country Status (3)

Country Link
DE (1) DE2609640C2 (en)
GB (1) GB1532513A (en)
NL (1) NL7602220A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036024A1 (en) * 1980-09-24 1982-05-06 Eckardt Ag, 7000 Stuttgart Electronic controller setting magnitude regulator - has multistage slide switch for manual speed dependent control, whose null position is in middle
US4841459A (en) * 1986-04-09 1989-06-20 Toshiba Kikai Kabushiki Kaisha Temperature indicating control apparatus having data storing function
US5703774A (en) * 1995-05-11 1997-12-30 The Boeing Company Variable slew selector switch system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121169B (en) * 1958-11-25 1962-01-04 British Thompson Houston Co Lt Device for position control
US3826991A (en) * 1972-11-09 1974-07-30 Honeywell Inc Process controller having electronic manual control

Also Published As

Publication number Publication date
DE2609640C2 (en) 1985-12-12
DE2609640A1 (en) 1976-09-23
GB1532513A (en) 1978-11-15

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Legal Events

Date Code Title Description
BV The patent application has lapsed