27.10.2020, 15:43
Hi,
The answer is quite simple, a KNX TP bus can handle aprox 40 telegrams a second, if you have moments where you have more then the max (this occurs most logical on the backbone) you need to switch to IP couplers.
There are a lot of devices that will increase traffic like motion sensors, thermostats and all other sensors that produce telegrams on cyclic base or motion inputs. When having only switching actuators with manual inputs you probably have a very low traffic, but adding more intelligent devices will increase traffic.
My rule of thumb is 1 to 3 lines can be done without filtering, 4 to 8 can be done with some filters (if you don't need all status infor into the visu) and any above the 8 lines must be IP. If your visu needs all info then you need an IP backbone when having more then 2-3 lines.
The answer is quite simple, a KNX TP bus can handle aprox 40 telegrams a second, if you have moments where you have more then the max (this occurs most logical on the backbone) you need to switch to IP couplers.
There are a lot of devices that will increase traffic like motion sensors, thermostats and all other sensors that produce telegrams on cyclic base or motion inputs. When having only switching actuators with manual inputs you probably have a very low traffic, but adding more intelligent devices will increase traffic.
My rule of thumb is 1 to 3 lines can be done without filtering, 4 to 8 can be done with some filters (if you don't need all status infor into the visu) and any above the 8 lines must be IP. If your visu needs all info then you need an IP backbone when having more then 2-3 lines.