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:
Oct. 28, 2008
Filed:
Apr. 30, 2002
Ronald Gross, North Hampton, NH (US);
Ronald Gross, North Hampton, NH (US);
Schneider Automation Inc., North Andover, MA (US);
Abstract
A communication protocol comprising a data packet, a control byte, and a check sum byte. The data packet having a plurality of data words wherein each data word comprises a first byte and a second byte. The control byte having a first address bit, a second address bit, and a third address bit for identifying an address of a slave controller, a type bit following the first address bit, the second address bit, and the third address bit for identifying a data type within said data packet, a direction bit following the type bit for identifying a source of the data frame, a content bit following the direction bit for identifying whether said data packet comprises data, a state bit following the content bit for identifying a state of a master controller, and a run/stop bit following the state bit for identifying a run/stop state of the master controller. The protocol comprises a check sum byte to ensure correct transmission of the data packet and control byte.