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card. Depending on the contract, the RTU receives a dynamic or fixed IP address
assigned by the mobile wireless network provider.
If you want to access the RTU directly with HTTPS, the RTU needs a public IP address.
If the RTU is to transfer not only messages, but also process data, the wireless contract
must support the sending of data.
● Communications partner
Depending on the protocol you are using, you require a suitable communications partner
for the RTU:
– Telecontrol server (TCSB)
– ST7-TIM:
– DNP3 master
– IEC master
The communications partner must be reachable from the LAN or Internet via a router, for
example SIMATIC NET SCALANCE M812.
With the DNP3 and IEC protocols make sure you have suitable security mechanisms for
the connection.
RTU3030C
Operating Instructions, 09/2017, C79000-G8976-C382-04
1.10 Scope of delivery, accessories, requirements
Application and functions
37
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