Abstract: A utility meter may comprise a plurality of modules providing functionality such as metrology, communications, registering power consumption, and other meter personality features. The modules may be connected to one another and configured to communicate within the meter (inter-module communications) using a standards-based protocol that, for intra-meter communications, omits unneeded information. For example, for an ANSI C12.22 BLURT message sent within the meter, the “Calling ApTitle” field and/or the “End Class Device” field and/or the “Write Service Request” field may be omitted. The omitted field(s) are added later by modules in the case of intra-meter messages relayed to an outside, standards-compliant network.

Abstract: An improved process ensures to the extent possible that the usage memory of an electronically-based electricity meter is always in a state that most recent data may be retrieved. Two separate areas or pages of memory are maintained and updated as to quantitative consumptions, e.g., kiloWatt-hour. Preferably a non-volatile form of memory is used. The older of the two data memories is updated, based on a data validation check. The approach ensures that a previous value is always retained, to prevent full data loss in the event that the power goes down. If one area of memory becomes corrupted, the other value can be retrieved and verified so as to prevent loss of both memory areas, before a subsequent data reading (such as kWh or a unit of time for a kW reading). Use of a relatively smaller unit of measure prevents any significant adverse affects to the accuracy of the value stored. In other words, the maximum data lost is limited to the chosen unit of measure since the most recent previous update.