Advantages and Disadvantages of KNX

Potential Advantages:

• Decentralized Network Structure
• Independent on the platform
• Low energy consumption
• Open standard
• Millions of installed devices
• Developed specifically for building automation
• Standardized applications assure consistency regardless of vendor
• Supported by hundreds of manufacturers
• Tree topology appropriate for large networks
• Choice of transmission media
• Backward compatible with former European Installation Bus (EIB)

Some Disadvantages:

• Community is relatively small (at least in the Western World -> more popular in Europe)
• Still unpopular amongst "home hackers"  that like to develop own stuff (might change in the future due to the hardware independency)

• Security Model
  
  
  
  

Image source: https://www.knx.org/media/docs/Flyers/Smart-Metering-With-KNX/Smart-Metering-With-KNX_en.pdf