Configuration in STEP 7
5.6 Configuring networks and network nodes in STEP 7 / NetPro
TIM DNP3
92 System Manual, 12/2015, C79000-G8976-C253-04
The Network Settings tab specifies the basic communications parameters for the current
network.
Image 5-10 Network Settings tab
The parameters are somewhat different for dial-up networks and DNP3 dedicated lines. The
"Identification" and "Dial-up network options" boxes are only available for dial-up networks.
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For DNP3 dedicated lines, the "Polling" mode is preset and cannot be changed.
– Polling
In polling mode that is used with dedicated lines, the data exchange is controlled by
the master TIM. This polls the connected stations and node stations one after the
other. Stations with data to transmit send it as soon as they are polled. Stations that
do not currently have any data acknowledge the poll. Only data to be sent from the
master TIM to the stations can be transferred at any time between two individual polls.
For dial-up networks, only the "DNP3 mode" can be configured.
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