Siemens S7-1200 System Manual page 771

Telecontrol by a control center
Figure 12-4
In telecontrol applications, SIMATIC S7-1200 stations with a CP 1242-7 communicate with a
control center via the GSM network and the Internet. The "TELECONTROL SERVER
BASIC" (TCSB) application is installed on the telecontrol server in the master station. This
results in the following use cases:
● Telecontrol communication between station and control center
● Communication between a station and a control room with OPC client
● Inter-station communication via a control center
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
Communication between S7-1200 stations and a control center
In this use case, data from the field is sent by the stations to the telecontrol server in the
master station via the GSM network and Internet. The telecontrol server is used to
monitor remote stations.
As in the first case, the stations communicate with the telecontrol server. Using its
integrated OPC server, the telecontrol server exchanges data with the OPC client of the
control room.
The OPC client and telecontrol server can be located on a single computer, for example
when TCSB is installed on a control center computer with WinCC.
Inter-station communication is possible with S7 stations equipped with a CP 1242-7.
To allow inter-station communication, the telecontrol server forwards the messages of the
sending station to the receiving station.
Communication processor and Modbus TCP
12.6 Telecontrol and TeleService with the CP 1242-7
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