Hi, I've noticed recently now that I've picked my project up again that the format of CBus messages has changed in terms of the second byte. For example, the lighting message 05 00 38 00 79 0C xx sets GA 10, however the messages I see coming through are now something like 05 1E 38 00 79 0C xx. What is this second byte used for or indicating. I thought that if we are routing between networks then this second byte would be used but there should be an accompanying byte. In any case, I'm only running the single default network. Cheers, Paul