Configuration in STEP 7
5.7 Configuring TIM modules
TIM DNP3
System Manual, 12/2015, C79000-G8976-C253-04
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"DNP3 master station parameters" tab
This tab is shown only for interfaces with the connection mode "DNP3 master station".
"Master station parameters" box
●
Base polling interval [s]
Here, you specify the base interval for polling stations by the DNP3 master station.
The base polling interval is used to calculate the following parameters in the "DNP3
station parameters" tab:
– Event polling interval
– Class 0 polling interval
Possible values: 0 ... 65535
Default: 30
●
Max. number of events per poll
Maximum number of events that can be sent in the reply message of the station after
being polled by the DNP3 master station.
If you enter 0 (zero), the function is turned off (no limitation).
Possible values: 0 ... 65535
Default: 0
●
Connection monitoring time (application layer) [s]
Time within which a sign of life is expected from the station. If the configured time is
exceeded, the DNP3 master station sends a message to the station on the application
layer. If this message is not acknowledged by the station, the station is classified as being
unreachable. With redundant paths, if the acknowledgment is not received, the
transmission path is classified as disturbed.
If you enter 0 (zero), the function is turned off and no message is sent.
Possible values: 0 ... 65535
Default: 5
Note on commands: If a connection to a station is interrupted or disrupted, commands
are repeated a maximum of three times before they are discarded by the master station if
the interruption to the connection remains.
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