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:
Jun. 09, 1998
Filed:
Feb. 05, 1997
Jane B Lanctot, Minneapolis, MN (US);
Rosemount Inc., Eden Prairie, MN (US);
Abstract
A communications protocol operable in a multi-processor transmitter environment that facilitates communication between the microprocessors is provided. The transmitter includes a sensor module having a sensor microprocessor and a sensor memory. The sensor module digitizes and compensates sensed process variables. The transmitter also includes an electronics module having an electronics microprocessor wherein the sensor and electronics microprocessors each include individually controllable output pins and individually readable input pins. The sensor and electronics microprocessors are connected by an interface having a bus system. The communications protocol comprises a set of instructions formed into procedures. The procedures include a sensor update procedure; a receive data procedure; a send data procedure; a send command procedure; an indexed read procedure; and a read memory direct procedure.