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Definitions Edit

An intelligent electronic device (IED) is

[a]ny device incorporating one or more processors with the capability to receive or send data/control from or to an external source (e.g., electronic multifunction meters, digital relays, controllers).[1]
a "smart" sensor/actuator containing the intelligence required to acquire data, communicate to other devices, and perform local processing and control. An IED could combine an analog input sensor, analog output, low-level control capabilities, a communication system, and program memory in one device.

References Edit

  1. NIST Special Publication 800-82, at B-4.

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