Intelligent process control communication system and method havi

Details Intelligent process control communication system and method havi Intelligent process control communication system and method havi

1994-07-12

1996-05-21

Trammell, James P.

Boots, shoes, and leggings

364187, 39520002, G05B 1500

Patent

active

055196039

ABSTRACT:
An intelligent front-end communication system which is interposed between a plurality of actively redundant process control computers and a computer network. The intelligent front end communication system includes at least one front end computer which is coupled to the computer network, and a serial communication interface which is coupled between the actively redundant process control computers and the front end computer. The serial communication interface transmits sequential sets of dynamic data from the actively redundant process control computers to the front end computer. The front end computer includes a plurality of reflective or shadow memory buffers for storing and time aligning corresponding sets of dynamic data which are asynchronously received from the serial communication interface.

REFERENCES:
patent: 4074119 (1978-02-01), Backnang et al.
patent: 4212057 (1980-07-01), Devlin et al.
patent: 4215398 (1980-07-01), Burkett et al.
patent: 4227453 (1980-10-01), Ehrsam et al.
patent: 4264782 (1981-04-01), Konheim
patent: 4304001 (1981-12-01), Cope
patent: 4310720 (1982-01-01), Check, Jr.
patent: 4325120 (1982-04-01), Colley et al.
patent: 4382083 (1982-07-01), Freedman et al.
patent: 4402046 (1983-08-01), Cox et al.
patent: 4410983 (1983-10-01), Cope
patent: 4465153 (1984-08-01), Van de Pas et al.
patent: 4493028 (1985-01-01), Heath
patent: 4503535 (1985-03-01), Budde et al.
patent: 4539652 (1985-09-01), Rubin
patent: 4578530 (1986-03-01), Zeidler
patent: 4593353 (1986-06-01), Pickholtz
patent: 4596898 (1986-06-01), Pemmaraju
patent: 4607256 (1986-08-01), Henzel
patent: 4609777 (1986-09-01), Cargile
patent: 4622630 (1986-11-01), Vora et al.
patent: 4625076 (1986-11-01), Okamoto et al.
patent: 4652990 (1987-03-01), Pailen et al.
patent: 4660141 (1987-04-01), Ceccon et al.
patent: 4663704 (1987-05-01), Jones et al.
patent: 4670890 (1987-06-01), Titchener
patent: 4672572 (1987-06-01), Alsberg
patent: 4683968 (1987-08-01), Appelbaum et al.
patent: 4713753 (1987-12-01), Boebert et al.
patent: 4723284 (1988-02-01), Munck et al.
patent: 4771462 (1988-09-01), Hannan et al.
patent: 4796232 (1989-01-01), House
patent: 4800590 (1989-01-01), Vaughan
patent: 4803618 (1989-02-01), Ita et al.
patent: 4809327 (1989-02-01), Shima
patent: 4823256 (1989-04-01), Bishop et al.
patent: 4839890 (1989-06-01), Semerau et al.
patent: 4853962 (1989-08-01), Brockman
patent: 4864494 (1989-09-01), Kobus, Jr.
patent: 4868851 (1989-09-01), Trinidad et al.
patent: 4872106 (1989-10-01), Slater
patent: 4881263 (1989-11-01), Herbison et al.
patent: 4882752 (1989-11-01), Lindman et al.
patent: 4885777 (1989-12-01), Takaragi et al.
patent: 4888800 (1989-12-01), Marshall et al.
patent: 4897777 (1990-01-01), Janke et al.
patent: 4903190 (1990-02-01), Akai
patent: 4919545 (1990-04-01), Yu
patent: 4924513 (1990-05-01), Herbison et al.
patent: 4926416 (1990-05-01), Cidon et al.
patent: 4926481 (1990-05-01), Collins, Jr.
patent: 4930073 (1990-05-01), Cina, Jr.
patent: 4932054 (1990-06-01), Chou et al.
patent: 4944008 (1990-07-01), Piosenka et al.
patent: 4956769 (1990-09-01), Smith
patent: 4958270 (1990-09-01), McLaughlin et al.
patent: 4958273 (1990-09-01), Anderson et al.
patent: 4959774 (1990-09-01), Davis
patent: 4964163 (1990-10-01), Berry
patent: 4969189 (1990-11-01), Ohta et al.
patent: 4975865 (1990-12-01), Carrette et al.
patent: 4984271 (1991-01-01), Goto
patent: 4995040 (1991-02-01), Best et al.
patent: 4996655 (1991-02-01), Chadwick et al.
patent: 4999768 (1991-03-01), Hirokawa
patent: 5003593 (1991-03-01), Mihm, Jr.
patent: 5006976 (1991-04-01), Jundt
patent: 5007088 (1991-04-01), Ooi et al.
patent: 5008805 (1991-04-01), Fiebig et al.
patent: 5012515 (1991-04-01), McVitie
patent: 5128943 (1992-07-01), Tulpule et al.
patent: 5129080 (1992-07-01), Smith
IEEE Micro, vol. 7, No. 5, Oct. 1987, New York, USA, pp. 27-50, H. D. Kirrmann "Fault Tolerance in Process Control: An Overview and Examples of European Products", see p. 32, right col., line 5-line 57; figure 3; see p. 35, left col., line 1-line 47.
ATP Automatisierungstechnische Praxis, vol. 33, No. 6, Jun. 1991, Munchen, DE, pp. 296-301, XPOOO237562, H. G. Nix "Fehlertolerant Automatisieren", see p. 298, left col., line 48-right col., line 14.
Hot Rod, High-Speed Serial Link Gallium Arsenide, Gazelle Microcircuits, Inc., Santa Clara, CA, Sept. 1989.

Affiliated with

Also associated with

Rating

Intelligent process control communication system and method havi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intelligent process control communication system and method havi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intelligent process control communication system and method havi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2043649