SIENNA uses the LON Standard and is compatible with other LonWorks based systems. Echelon’s LonWorks is a ISO/IEC- and ANSI-compliant platform that enables some of the world’s most advanced control and energy management applications. Normally LonWorks is used for commercial buildings and for big projects e.g. Munich Airport, the Reichstag in Berlin, the new trade fair center in Stuttgart. etc. SIENNA is the first system that offers LonWorks based products for residential buildings.