Siemens SIMATIC TIM 3V-IE DNP3 System Manual page 105

● Number of stations in sub-cycle:
This parameter cannot be configured for DNP3 and has no significance.
● Transmission mode:
This parameter cannot be configured for DNP3 and has no significance.
"Dial-up Network" tab
This tab contains special parameters required only when using dial-up networks.
Image 5-19
The dial-up network parameters include:
● Transmission criteria:
The transfer criterion for connection establishment to transfer unsolicited messages
(events) is only relevant for stations and node stations and as the default "standard
conditions" is set for the DNP3 dedicated line which cannot be changed.
– Standard conditions:
TIM DNP3
System Manual, 12/2015, C79000-G8976-C253-04
5.6 Configuring networks and network nodes in STEP 7 / NetPro
Properties - DNP3 Dial-up Network TIM dialog, Dial-up Network tab
If unsolicited messages are pending, no connection is established. The unsolicited
frames are only transferred when there is a threat of buffer overflow or the connection
is called up from the other end.
Configuration in STEP 7
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