Maximum Transmission Rate Control

By default, the KNX driver uses a bandwidth rate limiting mechanism to restrict outbound traffic to approximately 20 percent of its full capability. This is because KNX uses a 9600 bps serial bus, and there is a possibility the packet buffers of individual IP routers may overflow.

It is possible to set this value higher using the KNX Parameters parameter, however, this is only recommended for a large KNX network on a single line containing many IP router devices with concise filter tables. If a value other than the default is used, you should monitor and confirm the delivery of telegrams to and from the KNX network.

This parameter only governs outbound traffic, so it should be set at a rate that allows enough bandwidth to accommodate a reply to each read request.

You can also use the KNX Parameters parameter to adjust the minimum timing delay between successive transmitted frames by the driver.