INTELLIGENT ELECTRONIC DEVICE CAPABLE OF OPERATING AS A USB MASTER DEVICE AND A USB SLAVE DEVICE
An intelligent electronic device (IED), e.g., an electrical power meter, having at least one removable memory device for storing data sensed and generated by the intelligent electronic device is provided. The IED includes a housing; at least one sensor; at least one analog-to-digital converter; at least one processing unit coupled to the at least one analog-to-digital converter configured to receive the digital data and store the digital data in a removable memory; and at least one device controller coupled to the at least one processing unit, the at least one device controller including an interface disposed on the housing for interfacing with the removable memory, wherein the at least one device controller is operative as a USB master or USB slave device controller.
1 . An intelligent electronic device comprising:
a housing;
at least one sensor configured for sensing at least one electrical parameter distributed to a load;
at least one analog-to-digital converter coupled to the at least one sensor and configured for converting an analog signal output from the at least one sensor to a digital data;
at least one processing unit coupled to the at least one analog-to-digital converter configured to receive the digital data and store the digital data in a removable memory; and
at least one device controller coupled to the at least one processing unit, the at least one device controller including at least one interface disposed on the housing for interfacing with the removable memory, wherein the at least one device controller is operative as a master or slave device controller.