Abstract: A method (300) for fault detection in a system under control includes monitoring a command value and a wraparound signal (301) by a fault detection module (203); determining a standard deviation of the command value (302) by the fault detection module; determining a standard deviation of the wraparound signal (303) by the fault detection module; determining a ratio of the standard deviation of the command value to the standard deviation of the wraparound signal (304) by the fault detection module; and determining the presence or absence of a fault in the system under control by the fault detection module based on the ratio (305) by the fault detection module. A fault detection module (203) and a computer program product comprising a computer readable storage medium containing computer code that, when executed by a computer, implements a method (300) for fault detection are also provided.

Abstract: A reconfigurable interface provides device-specific processing through software rather than hardware. The reconfigurable interface that samples an output from at least one device and converts it to a digital signal. The digital signal can then be processed in any desired manner, such as to extract intelligence or condition the signal. The conversion and the processing are controlled by data in a configuration table, which are easily modified and reconfigured to accommodate different systems and devices. The same reconfigurable interface can be used for any type of device and the devices do not require customized hardware interfaces to communicate with a signal processor.