Patent 7752511 was granted and assigned to Siemens AG on July, 2010 by the United States Patent and Trademark Office.
A method for providing a signal indicative of a set single bit flag, which is set for a scan cycle responsive to a detection of a fault in an Input/Output (I/O) device of a programmable logic controller (PLC) system or an I/O interface of the PLC system. Numerous other aspects are provided.