ABB i-bus KNX Product Manual page 44

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ABB i-bus KNX
Start-up
Limit number of telegrams
Options:
The load on the bus generated by the device is limited by the telegram rate. This limit relates to all
telegrams sent by the device.

Yes: The following parameters appear:
42 2CDC 506 051 D0204 | JRA/S
Sending cycle time
in s [1...65,535]
Options: 1...60...65,535
Here, the time interval, at which the communication object In operation (No. 0) cyclically sends a
telegram, is sent.
Object value
Options: 1
0
The polarity of the object value is set here.
Note
After bus voltage recovery, the communication object sends its value after the set sending and
switching delay.
No
Yes
Max. number of sent telegrams
Options: 1...255
In period
50 ms/100 ms...1 s...30 s/1 min
Options:
These parameters defines the number of telegrams sent by the device within a period. The
telegrams are sent as quickly as possible at the start of a period.
Note
The device counts the number of telegrams sent within the parameterized period. As soon as the
maximum number of sent telegrams is reached, no further telegrams are sent to the KNX until
the end of the period. A new period commences at the end of the previous period. The telegram
counter is reset to zero, and sending of telegrams is allowed again. The current communication
object value is always sent at the time of sending.
The first period (break time) is not predefined exactly. The period can be between zero seconds
and the parameterized time. The subsequent sending times correspond with the parameterized
time.
Example:
Maximum number of sent telegrams = 5, in period = 5 s. 20 telegrams are ready to be sent. The
device immediately sends 5 telegrams. The next 5 telegrams are sent after maximum 5 seconds.
From this point, a further 5 telegrams are sent on the KNX every 5 seconds.