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:
Aug. 30, 2005
Filed:
Apr. 19, 2002
Harald Herberth, Oberasbach, DE;
Harald Herberth, Oberasbach, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for operating automation control equipment applications ensures uninterrupted execution of a control application, at least during specific time periods, but such that the control application does not have the access privileges of a device driver. The operating system is configured for preventing calling of the processor commands from the control application, the processor communicating with the controlled automation equipment via a programmable bus interface. An embodiment of the method comprises the steps of performing read and write access of the control application to the bus interface directly and without routines of the operating system or device driver, and suspending processing of hardware interrupt calls of the processor during a preselected time period. Read and write access of the control application to the bus interface is thus carried out directly, rather than via routines of the operating system, and hardware interrupt calls of the processor are not processed during specific time periods.