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GB1344619A - Control systems - Google Patents

Control systems

Info

Publication number
GB1344619A
GB1344619A GB1344619DA GB1344619A GB 1344619 A GB1344619 A GB 1344619A GB 1344619D A GB1344619D A GB 1344619DA GB 1344619 A GB1344619 A GB 1344619A
Authority
GB
United Kingdom
Prior art keywords
wires
controller
valve
control
station
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.)
Expired
Application number
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.)
SPX Flow Technology Crawley Ltd
Original Assignee
APV Corp 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 APV Corp Ltd filed Critical APV Corp Ltd
Publication of GB1344619A publication Critical patent/GB1344619A/en
Expired 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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21032—Controlled module in a ring, each module detects its own address
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21111—Each module has a push button to bypass control and switch module on
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21157—Broken, open line, cable, circuit, faulty connection
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24098—Scan and display states of all actuators if controller fails
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25195—Multiwire cable, parallel

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Feedback Control In General (AREA)
  • Selective Calling Equipment (AREA)

Abstract

1344619 Selective signalling APV CO Ltd 4 May 1971 [4 May 1970] 21362/70 Heading G4H A control system comprises a controller to which a plurality of transducers and/or control devices are connected by a plurality of lines in a loop, a decoder being associated with each transducer and/or control device, some of the lines being utilized for the transmission of a code for the selection of a particular transducer or control device of the plurality of transducers and/or control devices, the controller including means for testing the continuity of each line. As described, a 19-wire cable connects valve stations and the controller in a potable liquid process installation (e.g. dairy or brewery) in a loop, a station being addressed (selected) by energizing 2 out of 5 of the lines plus 2 out of another 5 plus 1 out of 2, the decoder in the selected station having only these lines connected through respective diodes, a resistor and a Zener diode to cause a transistor to conduct, the junction of the resistor and Zener diode being connected to a power supply via a resistor and to earth via a capacitor. Conduction of the transistor permits a latching relay controlling the valve to be set in one of two states according to which of two further wires of the 19 wires is energized, and energizes through diodes a further one of the 19 wires and (depending on the relay state) one of two more of the 19 wires to notify the controller of the relay state. The remaining two of the 19 wires are used for power supply. As a modification, 15 wires may be used for station selection, in 3 groups of 2 out of 5. The controller may include a computer which selects the valve stations in turn, and a panel permitting manual selection and control of valves and display on lights of valve state. The controller uses relays to test the continuity of the wires in turn periodically. A second set of decoders may be connected to the wires, with the same addresses as the above decoders respectively, and if the computer fails, an oscillatordriven counter addresses all the decoders in turn, those of the second set latching valve state information from the valve stations and using it to control a mimic diagram display. Each decoder of the second set includes a switch for supplying a signal to the associated valve station when the corresponding address is generated. Control of reversible motors, product routing and in-place cleaning is also mentioned.
GB1344619D 1970-05-04 1971-05-04 Control systems Expired GB1344619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2136270 1970-05-04

Publications (1)

Publication Number Publication Date
GB1344619A true GB1344619A (en) 1974-01-23

Family

ID=10161632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1344619D Expired GB1344619A (en) 1970-05-04 1971-05-04 Control systems

Country Status (6)

Country Link
BE (1) BE766650A (en)
DE (1) DE2122032A1 (en)
DK (1) DK134620B (en)
FR (1) FR2088322B1 (en)
GB (1) GB1344619A (en)
NL (1) NL155107B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419546A1 (en) * 1978-03-10 1979-10-05 Ward Goldstone Ltd INFORMATION PROCESSING SYSTEM
DE3020884A1 (en) * 1980-06-02 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Cable layout system for computerised factories - has permanent reserve cable permitting resumption of service after main line damage
GB2149161A (en) * 1983-10-28 1985-06-05 Software Control Limited Computer control system
GB2164180A (en) * 1984-09-06 1986-03-12 Jones Automation Limited J Remote monitoring apparatus
GB2204723A (en) * 1987-05-09 1988-11-16 Gewerk Eisenhuette Westfalia Electro-hydraulic control systems for use in mineral mining
GB2263049B (en) * 1991-12-20 1995-09-13 Teac Corp Control System
GB2332549A (en) * 1997-12-22 1999-06-23 Smc Kk Electropneumatic regulator system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543028C2 (en) * 1975-09-26 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Electrical system for remote actuation of electrical consumers arranged at one or more points
DE3221519A1 (en) * 1982-06-08 1984-03-08 Telefunken electronic GmbH, 7100 Heilbronn Arrangement for transmitting information by means of electrical signals
DE4232518C2 (en) * 1992-09-22 1996-03-14 Mannesmann Ag Control device for valves and / or valve units
DE4232519C2 (en) * 1992-09-22 1995-12-21 Mannesmann Ag Computer bus controlled power valve control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1114522A (en) * 1964-06-10 1968-05-22 English Electric Co Ltd Analogue signal transmission system
FR1460129A (en) * 1964-10-28 1966-06-17 English Electric Co Ltd Remote electrical control system for various elements of an installation
GB1134184A (en) * 1965-07-14 1968-11-20 Ass Elect Ind Improvements relating to signalling apparatus
GB1168476A (en) * 1966-05-17 1969-10-29 British Telecomm Res Ltd Improvements in or relating to data transmission systems

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419546A1 (en) * 1978-03-10 1979-10-05 Ward Goldstone Ltd INFORMATION PROCESSING SYSTEM
US4290134A (en) 1978-03-10 1981-09-15 Ward & Goldstone Limited Multiplex information handling system
DE3020884A1 (en) * 1980-06-02 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Cable layout system for computerised factories - has permanent reserve cable permitting resumption of service after main line damage
GB2149161A (en) * 1983-10-28 1985-06-05 Software Control Limited Computer control system
GB2164180A (en) * 1984-09-06 1986-03-12 Jones Automation Limited J Remote monitoring apparatus
GB2204723A (en) * 1987-05-09 1988-11-16 Gewerk Eisenhuette Westfalia Electro-hydraulic control systems for use in mineral mining
GB2204723B (en) * 1987-05-09 1991-05-15 Gewerk Eisenhuette Westfalia Improvements in electro-hydraulic control systems for use in mineral mining
GB2263049B (en) * 1991-12-20 1995-09-13 Teac Corp Control System
GB2332549A (en) * 1997-12-22 1999-06-23 Smc Kk Electropneumatic regulator system
GB2332549B (en) * 1997-12-22 2000-02-16 Smc Kk Electropneumatic regulator system
US6119721A (en) * 1997-12-22 2000-09-19 Smc Kabushiki Kaisha Electropneumatic regulator system

Also Published As

Publication number Publication date
BE766650A (en) 1971-10-01
FR2088322A1 (en) 1972-01-07
FR2088322B1 (en) 1974-03-22
DE2122032A1 (en) 1971-11-25
DK134620B (en) 1976-12-06
DK134620C (en) 1977-05-16
NL7106057A (en) 1971-11-08
NL155107B (en) 1977-11-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee