Siemens SIMATIC TIM 3V-IE DNP3 - Network structures and configurations; 2.1 Overview of the possible network types

TIM DNP3
System Manual, 12/2015, C79000-G8976-C253-04
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Network structures and configurations
2
2.1
Overview of the possible network types
With the DNP3 TIM, hierarchical networks consisting of control center and stations and if
required node stations can be set up via a WAN.
IP-based WAN
DNP3 communication is possible between station and control center via IP-based WANs:
● Via Ethernet (copper cable)
● Over fiber-optic cable
– For example by using SCALANCE X switches with optical ports; this allows distances
of up to 120 km to be covered.
or also
– In conjunction with transmission systems such as PCM30 or OTN
Classic WAN
● Dedicated lines
Dedicated lines, private or leased copper cable or fiber-optic cable can be used as classic
WANs for the data transmission. A suitable dedicated line modem is required for data
transmission, for example the dedicated line modem MD2.
● Dial-up networks
The following networks can be used for data transmission:
– Private wireless networks
– Analog telephone network
– Digital ISDN network
– Mobile wireless network (GSM)
2.2
Communication relations between DNP3 subscribers
Possible communications relations
● A DNP3 master station can communicate with several DNP3 stations.
● A DNP3 station can communicate with several master stations.