Honeywell C-bus protocol


Thread Starter

Petr Placek


I would like to ask you if the Honeywell C-bus protocol specification can be found somewhere on Internet.

Thank you for any suggestions,

Peter Placek.
Merz company
Have you ever found the C-bus protocol? I am interested in iti also. I have found a company in the Cezch Republic that sell a SCADA device for Honeywell C-bus, and have purchased it. Their internet site is The only drawback is that it will only communicate to a 9600 baud C-bus speed.

That web site address is