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:
Feb. 28, 1989
Filed:
Oct. 31, 1985
William E Floro, Willoughby, OH (US);
Mark Luboski, Euclid, OH (US);
Timothy J Murphy, Parma, OH (US);
Alan J Campbell, New Berlin, WI (US);
Allen-Bradley Company, Inc., Milwaukee, WI (US);
Abstract
A method and apparatus for access to a programmable controller at a remote location. A peripheral device with a peripheral processor is connected to a port on an I/O module. Blocks of discrete and block transfer data are transferred to and from a common memory in the I/O module where the data is accessible to a serial communication controller that interfaces the module to a high speed serial data channel. Asynchronous communication is provided between the serial communication controller and the peripheral device using a circular buffer in the common memory. Timing considerations are also disclosed.