j62056 Overview

j62056 on Maven Central

j62056 is a Java implementation of the IEC 62056-21 protocol (modes A, B, C, and D). It can be used to develop individual IEC 62056-21 master applications that read metering data from slaves such as gas, water, heat, or electricity meters. The library includes an application that reads a given meter and prints the received data to stdout. j62056 is licensed under the LGPL version 2.1 or later.

Our library is used by openHAB und OGEMA, among others.


  • Dirk Zimmermann


  • Stefan Feuerhahn