Configuration
3.6 Serial interface
Configuration - DNP3
50
Configuration Manual, 11/2018, C79000-G8976-C508-01
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Dial test interval
The test interval (min) is started when no connection could be established by the
communications module after 3 attempts. When the test interval elapses, the
communications module attempts to establish a connection again.
If it fails to establish the connection again, the test interval is restarted.
If a new frame is pending for transfer during the test interval in a master station TIM, the
TIM attempts to establish a connection immediately.
Default setting: 5. Permitted range: 0...255
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Max. connection duration
Only for interfaces with the Network node type "Master station".
Maximum connection duration (s) for a dial-up connection. When the time elapses, the
connection is terminated. Frames that are still pending for transmission in the station are
transferred the next time a connection is established.
With 0 (null), the dial-up connection is retained until all pending data has been
transferred.
Default setting: 5. Permitted range: 0...65535
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Repetition factor
The repetition factor determines how often a data frame that has not been acknowledged
positively is repeated.
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Abort delay time
Only with CP 1243-8 IRC
Duration (s) a dial-up connection is retained when the send buffer of the TIM is full and
the TIM can send no further messages or data to the CPU.
During the abort delay time, received messages are acknowledged negatively and the
communications partner repeats sent and negatively acknowledged messages.
When the abort delay time elapses, the connection is terminated.
Default setting: 20. Permitted range: 0...255
Form of transfer
Only with CP 1243-8 IRC
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Form of transfer
Specifies the form in which data messages are sent.
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Type-specific
This is the bundled transfer of events according to data types typical for DNP3. First
the existing binary events are sent, then all analog values and finally all counted value
changes. This makes the frames somewhat more compact and transmission more
efficient.
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Chronological
In this mode, events are transmitted strictly chronologically. The optimizing effect of
grouping into blocks of the same data type as described in the DNP3 specification
