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:
Jan. 02, 2001
Filed:
Jun. 30, 1998
Ronald Wayne Olson, Charlottesville, VA (US);
Anthony Joseph Cinalli, Charlottesville, VA (US);
Andrew Edward Spencer, Roanoke, VA (US);
Abstract
A networked system is provided for connecting a plurality of programmable logic controllers together in a manner which more efficiently uses available network bandwidth. The network includes a producer controller and at least one consumer controller. The producer controller shares a portion of its internal memory with other consumer controllers on the network. In this manner, a data sample is sent from the producer controller to one or more consumer controllers. The consumer controllers check to determine if data samples are lost during transmission over the network and initiate responsive corrective action.