How many send telegrams are allowed per IP Gateway in a certain amount of time? The Group Address Type is set here as well.
Send Interval
It defines the interval of telegrams being sent to a single gateway. The KNX bus can handle approximately 17 telegrams per second. The data management module of the NETx BMS Core Server is responsible for sending telegrams to the gateway within the defined time. If for example 2000 telegrams are sent to a gateway, it will take 2000 x 250ms = 8.3min, until all of them are sent out. We suggest calculating with 10 telegrams per second and KNX line. Then there is enough capacity left in case of occasional high loads and still no loss of any telegram to the line. The default value of 250ms is set for being able to send out 4 telegrams per second and still enough buffer to receive telegrams from the KNX line in between.
Group Address Type
This property defines how the logical KNX address is shown in the studio (in 2 or 3 steps). This parameter does not have any influence on the Server Item ID (which mainly consists of the logical KNX address). The type of the address being used for the Server Item ID is set in the system configuration (cf. section 4.2.2.1).
Figure 3.13.: KNX Configuration