Knowledge

Smart metering explained clearly

Basics and practical knowledge from our daily work with meters, smart meter gateways and LMN equipment. Concisely written, regularly expanded.

Basics

What is a smart meter gateway (SMGw)?

The communication unit of the intelligent metering system: tasks, interfaces (LMN, WAN, HAN), legal framework and BSI certification – explained concisely.

LMN explained simply: the interface between meter and SMGw

How the local metrological network works: wired via RS-485/RJ12 with HDLC and SML, wireless via Wireless M-Bus – and how to test LMN communication.

mME, base meter, intelligent metering system – the differences

Modern metering device, base meter (Basiszähler) and iMSys are often confused. What the terms mean under the MsbG and FNN, and how they relate.