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:
Apr. 07, 2009
Filed:
Feb. 15, 2005
Applicants:
David Martin, Jonesborough, TN (US);
C. Eric Gibson, Johnson City, TN (US);
Inventors:
David Martin, Jonesborough, TN (US);
C. Eric Gibson, Johnson City, TN (US);
Assignee:
Siemens Energy & Automation, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/14 (2006.01); G06F 12/16 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G05B 19/18 (2006.01); G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system for providing an application with a plurality of methods for accessing memory of a programmable logic controller includes an application, an interface for establishing communication between the application and a programmable logic controller, and a shared memory area initiated by the application or the programmable logic controller. The shared memory area includes an input memory and an output memory. The application is enabled by the interface to write to the input memory and to read from the output memory.