Siemens SIMATIC RTU3030C Operating Instructions Manual page 16

Application and functions
1.2 Configuration examples
Telecontrol with the "TeleControl Basic" protocol
In the following example the RTU uses the "TeleControl Basic" protocol and communicates
via the mobile wireless network and the Internet with the teleconrol server (TCSB) in the
master station.
Using its integrated OPC server, the telecontrol server exchanges data with the OPC client
of the control center.
Figure 1-2
16
Communication of the RTU and other station types with a master station
Operating Instructions, 09/2017, C79000-G8976-C382-04
RTU3030C