This documentation reflects the M-Bus specification from the late 1990s. It is for information only and should not be used for product design or any other application or engineering.Publication of the current M-Bus specification
This document, which is based on references  and , gives detailed and actual information about the M-Bus, which is a low cost home electronic system (HES).
This documentation about the M-Bus is published by the M-Bus Usergroup, which is an international organization of users and producers of M-Bus devices. The usergroup meets several times a year to discuss problems and developments in hardware and software. Recommendations, agreements, examples and explanations are included in this paper as well as parts of the standards itself. Among other things the actual version of this document in Winword format can be downloaded from the M-Bus Mailbox.
§ Text parts or topics marked with this symbol are new or changed information since last version 4.7.1 of this document.