Boots – shoes – and leggings
Patent
1997-05-12
1999-01-19
Decady, Albert
Boots, shoes, and leggings
364133, 364187, G06F 1134
Patent
active
058623159
ABSTRACT:
A process control interface system having a network of distributed triply redundant input/output field computer units. The system includes a plurality of self-contained remotely located triply redundant field computer units connected to decision making redundant process control computers through a bi-directional communication network having at least two concurrently active communication channels. Each of the field computer units include a set of at least redundant field computers for arbitrating both input and output signals. The input arbitration method enables a plurality of selectable default input conditions, such as select HIGH and select LOW, in the event that a majority agreement cannot be reached among valid input signals. The output arbitration method includes a plurality of selectable default output conditions, such as fail SAFE and fail LAST. Each of the default input and output conditions may be rapidly adjusted through software selection. The field computer units also include individual abort circuits for each output signal to be transmitted to a device which affects the operation of the physical process. These abort circuits effectively enforce the output value signals arbitrated independently through each of the three redundant field computers using a voting procedure.
REFERENCES:
patent: 3377623 (1968-04-01), Reut
patent: 3593307 (1971-07-01), Gouge et al.
patent: 3636331 (1972-01-01), Amrehn
patent: 3665173 (1972-05-01), Bouricius et al.
patent: 3681578 (1972-08-01), Stevens
patent: 3735356 (1973-05-01), Yates
patent: 3783250 (1974-01-01), Fletcher
patent: 3895223 (1975-07-01), Neuner
patent: 3898621 (1975-08-01), Zelinski
patent: 3921149 (1975-11-01), Kreis
patent: 4015246 (1977-03-01), Hopkins
patent: 4032757 (1977-06-01), Eccles
patent: 4049957 (1977-09-01), Kera
patent: 4099234 (1978-07-01), Woods
patent: 4101958 (1978-07-01), Patterson
patent: 4133027 (1979-01-01), Hogan
patent: 4153198 (1979-05-01), Eki
patent: 4198678 (1980-04-01), Maatje
patent: 4228496 (1980-10-01), Katzman
patent: 4251873 (1981-02-01), Joby
patent: 4270168 (1981-05-01), Murphy
patent: 4270715 (1981-06-01), Norton
patent: 4276648 (1981-06-01), Tomlinson
patent: 4277832 (1981-07-01), Wang
patent: 4304001 (1981-12-01), Cope
patent: 4342083 (1982-07-01), Thuy
patent: 4347563 (1982-08-01), Paredes
patent: 4347564 (1982-08-01), Sugano
patent: 4352103 (1982-09-01), Slater
patent: 4358823 (1982-11-01), McDonald
patent: 4371754 (1983-02-01), De
patent: 4375683 (1983-03-01), Wensley
patent: 4392199 (1983-07-01), Schmitter
patent: 4412280 (1983-10-01), Murphy
patent: 4424559 (1984-01-01), Lorincz
patent: 4443861 (1984-04-01), Slater
patent: 4472806 (1984-09-01), Blair
patent: 4517639 (1985-05-01), Ferell
patent: 4517673 (1985-05-01), Brown
patent: 4530045 (1985-07-01), Petroff
patent: 4532630 (1985-07-01), Corney
patent: 4562575 (1985-12-01), Townsend
patent: 4583224 (1986-04-01), Ishii
patent: 4610013 (1986-09-01), Long
patent: 4616312 (1986-10-01), Uebel
patent: 4617475 (1986-10-01), Reinschmidt
patent: 4622667 (1986-11-01), Yount
patent: 4631693 (1986-12-01), Neri
patent: 4634110 (1987-01-01), Julich
patent: 4635184 (1987-01-01), Schuss
patent: 4639852 (1987-01-01), Motomiya
patent: 4644538 (1987-02-01), Cooper
patent: 4663704 (1987-05-01), Jones
patent: 4665522 (1987-05-01), Lala
patent: 4667284 (1987-05-01), Asami
patent: 4667294 (1987-05-01), Asami
patent: 4672530 (1987-06-01), Schuss
patent: 4683105 (1987-07-01), Hager
patent: 4685053 (1987-08-01), Hattori
patent: 4692932 (1987-09-01), Denhez
patent: 4695952 (1987-09-01), Howland
patent: 4713832 (1987-12-01), Hutson
patent: 4726026 (1988-02-01), Hilford
patent: 4748594 (1988-05-01), Lida
patent: 4774709 (1988-09-01), Tulplue
patent: 4794601 (1988-12-01), Kikuchi
patent: 4797884 (1989-01-01), Yalowitz
patent: 4799140 (1989-01-01), Dietz
patent: 4817091 (1989-03-01), Katzman
patent: 4823256 (1989-04-01), Bishop
patent: 4841232 (1989-06-01), Graham et al.
patent: 4858101 (1989-08-01), Stewart
patent: 4868826 (1989-09-01), Smith
patent: 4868851 (1989-09-01), Trinidad
patent: 4872106 (1989-10-01), Slater
patent: 4872213 (1989-10-01), Sebald
patent: 4897640 (1990-01-01), Rapoen
patent: 4916612 (1990-04-01), Chin
patent: 4916695 (1990-04-01), Ossfeldt
patent: 4933940 (1990-06-01), Walter
patent: 4955020 (1990-09-01), Stone
patent: 4958270 (1990-09-01), McLaughlin
patent: 4959768 (1990-09-01), Gerlart
patent: 4965745 (1990-10-01), Economy
patent: 4975931 (1990-12-01), Cosand
patent: 4995040 (1991-02-01), Reut
patent: 4998194 (1991-03-01), Okamoto
patent: 5008805 (1991-04-01), Fieblg
Gadi Kaplan, "The x-29: Is it coming or going?" IEEE Spectrum Jun. 1985, pp. 54-60.
Gary R. Strickler, "Chemical Engineering Progress" pp. 50-56, Dec. 1986.
Camile.TM. Brochures on Data Acquisition and Control.
ISA Transactions, vol. 30, No. 4, 1991 Pittsburgh U.S., pp. 97-106, Tony Frederickson et al. "Comparison of Fault Tolerant Controllers Used in Safety Applications".
Jerome Folman "Distributed Memory Network: An 8 Gigabit Fiber Optic Tightly Coupled System" Proceedings of IEEE 1985 National Aerospace and Electronics Conference NAECon, May 1995.
Jacob; Wolf et al. "Design of a Distributed Fault-Tolerant Loop Network " The Ninth Annual International Symposium on Fault-Tolerant Computing, Madison Wisconsin pp. 17-24, Jun. 1979.
Fernandez G. Paul
Glaser Robert S.
Grai Timothy J.
Grinwis Donald J.
Hoy Robert S.
Coughlin William J.
De'cady Albert
Schultz Dale H.
The Dow Chemical Company
LandOfFree
Process control interface system having triply redundant remote does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process control interface system having triply redundant remote , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process control interface system having triply redundant remote will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1253810