ECMX® Registry
ECMX® Registry
The Energy Communications Management eXchange®

ANSI C12.19 / IEEE Std 1377 End Device Class Registration Area

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Find about ANSI C12.19 / IEEE Std 1377 Device Class OIDs

The ANSI C12.19 and IEEE Std 1377 standards organize the data and operational variables to be conveyed into and out of End Devices (e.g., electricity meters or control point devices, such as hosts, gateways, relays and master relays). Within any data organization, the highest level groupings of information are called "Decades". Decades organize information by subject, such as register sensory values, timing controls, or load profile data. Their contained objects are called "Tables". A large number of Tables are defined to allow representation of many types of operational metering and communication needs. Tables exist for standard common data elements that are canonized by the standards; these are known as "Standard Tables" and are created and pre-registered by accredited registrars, such as ECMX®. Tables that are incorporated into the End Device that are not canonized by the standards are referred to as "Manufacturer Tables". Manufacturer Tables can be defined not only by meter manufacturers, but also by system integrators, gateway equipment suppliers, network control and interface vendors and utility information technology engineers.

The registration process is a mechanism for representing the Tables in a common form. Translations and processing can be performed from the ANSI C12.19 / IEEE Std 1377 common form to any alternate form or process. Starting with ANSI C12.19-2008 and IEEE Std 1377-2012 it is required for End Device data models to be registered using XML as the common form for processing information.

The file registered is an XML-based object-oriented Table Definition Language (TDL) that is an abstract End Device class modeling framework (meta-data model). Its data realization companion is the enterprise XML-based Exchange Data Language (EDL), which is used to model End Device Table classes and convey instances of ANSI C12.19 End Device Table values in a manner that is network communication protocol agnostic. Once registered the following artifacts are available for access to our clients as follows:

TDL An XML description of the table model.
EDL An XML content of meter data.
EDL Schema An XMLSchema description of an EDL file which is based on a TDL.

The XML-based TDL meta-models are machine readable and can be used by Head-end systems, meter data management systems (MDMS) and other so-called enterprise applications to interpret the ANSI C12.19 / IEEE Std 1377 End Device data elements when translating MDMS Common Information Model-based messages to Head-end/ANSI C12.19/IEEE Std 1377 Tables, and by the Head-end systems to manage the real-time communication with the End Devices (e.g. meters). The XML-based EDL classes (expressed as EDL schema files) and objects and the elements (expressed as XML file) hold machine readable forms that can be used by Head-end systems and MDMS enterprise applications to convey ANSI C12.19 End Device element data.

In order to provide a unique means of identification of instance models of actual End Devices, ANSI C12.19 and IEEE Std 1377 bind, using the registry services, an End Device Classes [represented by a universally uniquely object identifier (OID)] to the registered TDL/XML and EDL/XML files. Each unique OID represents a unique selection of model components, decades and tables that can were defined and described formally in the Table Definition Language (TDL) and Exchange Data Language (EDL). These OIDs and related artifacts are be available from the ECMX registry along with TDL and EDL descriptions and device class OIDs.