×

Intelligent electronic device with assured data storage on powerdown

DC
  • US 6,745,138 B2
  • Filed: 08/15/2001
  • Issued: 06/01/2004
  • Est. Priority Date: 02/23/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for storing working data code for an IED, the method comprising:

  • monitoring a parameter of a portion of a power distribution system and generating an analog signal representative thereof;

    receiving said analog signal and at least one of quantifying and reporting said monitored parameter;

    storing a program code for a processor in a non-volatile memory, wherein said processor comprises said non-volatile memory, a volatile memory and a digital processing core;

    executing said stored program code to implement said quantifying and reporting functions;

    storing, with said volatile memory, working data code for said digital processing core during execution of said stored program code, wherein said volatile memory couples with said processing core; and

    periodically transferring a portion of said working data from said volatile memory to said non-volatile memory.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×