Data processing: generic control systems or specific application – Generic control system – apparatus or process – Sequential or selective
Reexamination Certificate
2006-03-08
2008-11-18
Hartman, Jr., Ronald D (Department: 2121)
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Sequential or selective
C714S004110, C370S227000, C370S228000
Reexamination Certificate
active
07454252
ABSTRACT:
A redundant fieldbus system provides power and communications in a parallel physical configuration between the host system and attached field devices irrespective of any single point failure in the network. In case of a fault, the redundant fieldbus system automatically eliminates the faulty section of the network, switches power and communications to the healthy portion of the network and terminates the network for signal integrity. A device coupler for the system may include a fault detector coupled to an auto-termination circuit that terminates a fieldbus cable when a fault is detected. The device coupler may include fault detection and isolation coupled to each set of spur terminals used to connect field devices to the device coupler. A field device for the system may include circuitry for deselecting a faulty cable while maintaining connection to a healthy cable.
REFERENCES:
patent: 5757265 (1998-05-01), Kogure et al.
patent: 2002/0184410 (2002-12-01), Apel et al.
patent: 2007/0109958 (2007-05-01), Fehrmann et al.
patent: WO 2005/032060 (2005-04-01), None
A Triply Redundant Wiring Solution For Foundation Fieldbus Segments; by Mike O'Neil; from Jump Aboard 2005; Fieldbus Foundation; pp. 1-10.
Trunkguard Series 200 Device Coupler; specification data sheets; Sep. 2005; 2 pages.
Fieldbus Facts Online; May 2005; vol. 6, No. 5; 8 pages including Figure reproduction as p. 8.
Fieldbus definition; Wikipedia.
Fieldbus Facts Online; Jun. 2005; vol. 6, No. 6; 13 pages.
TS Series Trunksafe Fault Tolerant Fieldbus System; device description; May 2007; 8 pages.
Trunksafe “In A Eggshell”; Jun. 2007; 2 pages.
TG200 Trunkguard Series Fieldbus Device Couplers; Aug. 2006; Device specification; 4 pages.
“Free Trunkguard with FPS200 Fieldbus Power Supply”; From Processingtalk Editorial Team; Nov. 17, 2004; 3 pages.
Fieldbus Facts Online; Apr. 2004; 19 pages.
Fieldbus Facts Online; Jun. 2004; 13 pages.
Fieldbus Facts Online; Feb. 2005; 9 pages.
Hartman Jr. Ronald D
Moore Industries International Inc.
Orrick Herrington & Sutcliffe LLP
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