Wikipedia
OpenWebNet
OpenWebNet is a communications protocol developed by Bticino since 2000.
The OpenWebNet protocol allows a "high-level" interaction between a remote unit and Bus SCS of MyHome domotic system. The latest protocol evolution has been improved to allow interaction with well-known home automation systems like KNX and DMX512-A system, by using appropriate gateways.
The OpenWebNet protocol is disclosed on MyOpen community.