Siemens SIMATIC TeleControl DNP3 - Page 52

Configuration
3.7 Configuring WAN networks
Configuration - DNP3
52 Configuration Manual, 11/2018, C79000-G8976-C508-01
Access method
Only with dedicated line
●
Access method
The access method is preset and cannot be changed:
– Polling
Frame parameters
The parameters are preset and cannot be changed.
●
Frame format
– FT3
●
Acknowledgment type
– Short acknowledgment (1 byte)
●
Repetition factor
The repetition factor determines how often a data frame that has not been acknowledged
positively is repeated:
– 3
●
Max. frame length
Maximum size of a data frame within the network:
– 240
Network settings
●
Dependence on direction
Direction dependency of the network
– Duplex
– Half duplex
●
Transmission speed
Speed at which the communications module and modem communicate.
From the drop-down list, select a value that is supported by all connected modems.
Time-of-day synchronization
● Enable time-of-day synchronization for WAN
When the parameter is enabled, you specify whether the time for the time-of-day
synchronization of the connected stations should be transmitted via the WAN network.
You specify the synchronization cycle if the parameter is enabled.
Note
Transfer of the setting by stations
The connected TIM modules adopt the settings made here on the network.