Patent ID: 6813571
Filing Date: 2004-11-02
Classification: G01D,G01R,H04L,Y02B,Y04S

Abstract:
An IED comprising:a power monitoring circuit operative to monitor a parameter of a portion of a power distribution system and generate an analog signal representative thereof; an analog to digital converter coupled with said power monitoring circuit, said analog to digital converter operative to convert said analog signal to a digital signal representative thereof; a processor coupled with said analog to digital converter and operative to implement power management functionality and generate power management data; at least one of a display and a communications interface coupled with said processor and operative to communicate said power management data external to said IED; an interface coupled with said processor and operative to receive an external function module; wherein said IED further comprises a first non-volatile memory operative to store first program code for execution by said processor, said processor being operative to access a second non-volatile memory in said external function module via said interface, said second non-volatile memory comprising second program code, said processor further operative to replace said first program code in said first non-volatile memory with said second program code.