Source: http://www.google.com/patents/US6047222?dq=6978253
Timestamp: 2017-10-20 18:55:51
Document Index: 291259336

Matched Legal Cases: ['art 1', 'art 2', 'art 1', 'art 2', 'art 1', 'art 2', 'art 1', 'art 2']

Patent US6047222 - Process control network with redundant field devices and buses - Google Patents
Functional elements within a two-wire, loop-powered, two-way digital communications environment are interconnected using selective redundant connections and selective redundant functional elements. The redundant functional elements and redundant connections provide a smooth transition from operation...http://www.google.com/patents/US6047222?utm_source=gb-gplus-sharePatent US6047222 - Process control network with redundant field devices and buses
Publication number US6047222 A
Application number US 08/983,019
PCT number PCT/US1997/017983
Publication number 08983019, 983019, PCT/1997/17983, PCT/US/1997/017983, PCT/US/1997/17983, PCT/US/97/017983, PCT/US/97/17983, PCT/US1997/017983, PCT/US1997/17983, PCT/US1997017983, PCT/US199717983, PCT/US97/017983, PCT/US97/17983, PCT/US97017983, PCT/US9717983, US 6047222 A, US 6047222A, US-A-6047222, US6047222 A, US6047222A
Patent Citations (42), Non-Patent Citations (32), Referenced by (259), Classifications (24), Legal Events (5)
US 6047222 A
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12 * Fieldbus Foundation Manual, Communications Technical Specification and User Layer Technical Specification, 1994 1997, including Fieldbus Message Specification FF 870 1.1; Physical Layer Conformance Testing FF 830 FS 1.0; Device Description Language FF 900 1.0; Function Blocks (Part 1) FF 890 1.2; Fieldbus Access Sublayer FF 875 1.1; Function Blocks (Part 2) FF 891 1.2; Data Link Protocol FF 822 1.1; System Management FF 880 1.1; Communication Profile FF 940 1.0; Transducer Blocks (Part 1) FF 902 Rev PS 2.0; Transducer Blocks (Part 2) FF 903 Rev PS 2.0; Data Link Services FF 821 1.0; 31.25 kbit/s Physical Layer Profile FF 816 1.0; Network Management FF 801 1.1; and System Architecture FF 800 1.0.
13 Fieldbus Foundation Manual, Communications Technical Specification and User Layer Technical Specification, 1994-1997, including Fieldbus Message Specification FF-870-1.1; Physical Layer Conformance Testing FF-830 FS 1.0; Device Description Language FF-900-1.0; Function Blocks (Part 1) FF-890-1.2; Fieldbus Access Sublayer FF-875-1.1; Function Blocks (Part 2) FF-891-1.2; Data Link Protocol FF-822-1.1; System Management FF-880-1.1; Communication Profile FF-940-1.0; Transducer Blocks (Part 1) FF-902 Rev PS 2.0; Transducer Blocks (Part 2) FF-903-Rev PS 2.0; Data Link Services FF-821-1.0; 31.25 kbit/s Physical Layer Profile FF-816-1.0; Network Management FF-801-1.1; and System Architecture FF-800-1.0.
19 * Fieldvue VL2000 Series Software User Guide, Fisher Controls, Version 2.0 (Jun. 1996).
25 * PCT International Search Report for PCT/US 97/17983 mailed Feb. 20, 1998.
26 * PCT Written Opinion issued in PCT application PCT/US97/17983 dated Jul. 20, 1998.
29 Zielinski et al., "Asset Management Using Fieldbus," Fisher-Rosemount Systems, Inc, pp. 1-14 (1997).
30 * Zielinski et al., Asset Management Using Fieldbus, Fisher Rosemount Systems, Inc, pp. 1 14 (1997).
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U.S. Classification 700/79, 700/2, 700/83, 714/11, 709/201, 709/211, 700/3, 700/82, 714/2, 709/210, 714/6.32
International Classification G05B19/04, G06F15/177, G05B19/418
Cooperative Classification G05B19/41855, G05B2219/31245, G05B19/4184, G05B2219/31121, G05B2219/24175, G05B2219/24182, Y02P90/185, Y02P90/14
European Classification G05B19/418F, G05B19/418N1