The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
May. 31, 2001
Applicants:
Michael D. Apel, Austin, TX (US);
Steve Dienstbier, Round Rock, TX (US);
Inventors:
Michael D. Apel, Austin, TX (US);
Steve Dienstbier, Round Rock, TX (US);
Assignee:
Fisher-Rosemount Systems, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/22 (2006.01); G06F 11/00 (2006.01); G06F 13/00 (2006.01); G06F 13/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process control system includes a plurality of input/output (I/O) devices and a controller in communication using a bus. Each I/O device has an interface for communicatively linking the I/O device with the bus, and includes a device processor which, upon detection of a potential I/O device fault, severs the communication link provided by the interface with the bus to thereby remove the I/O device from the bus and to prevent the I/O device from keeping other I/O devices on the bus from communicating over the bus.