Method of communication in a home automation network allowing communication between command transmitters and/or command receivers associated with equipment in a building by means of messages transmitted in the form of frames, a frame comprising at least one data field comprising several functional segments, said method comprising a step of constructing a frame on the basis of an instruction written in a programming language, the instruction comprising words composed in the form of strings of alphanumeric characters and/or of signs and/or of icons, delimited by separators, in which each word gives rise to a functional segment.