ibaDAQ
Manual
Issue 1.1
55
Set the smallest scheduled sampling rate in the "Timebase" field. Now, you can enter the
scheduled or expected data volume (in bytes) manually in the table rows 1 to 15. Each
new entry causes the result values in the "Flex frame utilisation" field to be recalculated.
This allows you to estimate whether the planned number of signals or devices can be
processed on one Flex link or whether an additional Flex link should be used.
Reserved bandwidth in the Ethernet channel for configuration data
The Ethernet channel (address 0) is used to transmit configuration data, to communicate
with a web interface and especially for ibaBM-DP to display the Profibus diagnosis. If
many devices are configured with a lot of signals, it may happen that only the minimum
size of 1 kB/s is reserved for the Ethernet channel. This minimum size is often not suffi-
cient and the Profibus diagnosis may not be displayed as a result or communication with
the web interface may become very slow.
The option "Reserve bandwidth for Ethernet communication" allows you to reserve a
fixed bandwidth for the Ethernet channel. The default value of 4 kB/s is usually sufficient
for configuration data and Profibus diagnosis.
Figure 51: Reserving bandwidth for Ethernet communication.
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