DIN EN IEC 63345:2024-08

This IEC Standard specifies a data model to abstract the metering world towards a simple external consumer display. The data model, as described by means of functional blocks contained in this IEC Standard, lays down the format of metering data accessible by a simple external consumer display. This data interface would be typically part of the meter communication functions and be accessed by a simple external consumer display via the H1 interface of the CEN/CLC/ETSI TR 50572 between the display and the meter communication functions. The data interface specified in this document may also be accessed by the LNAP or NNAP through the C or M interface, after which the data could be accessed by HBES devices through the H2 and H3 interface. In other words, in this way the same data model can be used both on the H1 as well as the H2 and H3 interface. This document specifies the requirements for the data interface and describes the measurement function blocks of the individual metering devices and their measurement data models. The document specifies neither the communication mechanisms used on the data interface, nor the applied data privacy and security mechanisms nor the ergonomics of the simple external consumer displays, where national regulations may apply. The document does also not specify the communication protocol used between the meters and the meter communication functions. However, it takes into account existing standards such as the EN 13757 series (in particular EN 13757-3:2013 and its Annex O) and the EN 62056 series for the definition of the data model. The standard differs from DIN EN 50491-11 (VDE 0849-11):2020-10 as follows: a) the content of DIN EN 50491-11 (VDE 0849-11):2020-10 has been transferred to DIN EN IEC 63345 (VDE 0849-45); b) furthermore, references have been updated. This document should be consulted, for example, when manufacturing a simple external consumer display in the field of home and building systems and building automation systems with regard to smart metering.