Siemens CP 1243-7 LTE Operating Instructions Manual page 23

● E-mails sent as a result of calling the program block TMAIL_C.
You will find information on the blocks in the section Program blocks for OUC (Page 105),
you will find the description of the programming in the STEP 7 information system.
If you want to use the secure transfer of e-mails, the CP must have the current time of day.
Telecontrol by a control center
Figure 1-2
In the telecontrol applications, the CP communicates with a telecontrol server with an
Internet connection via the mobile wireless network. The "TeleControl Server Basic V3"
(TCSB) application is installed on the telecontrol server in the master station. This results in
the following use cases:
● Communication between a station and a control room with OPC client
The station communicates 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 via a control center
Inter-station communication is possible with S7 stations equipped with a suitable
telecontrol CP: CP 1243-1, CP 1242-7 GPRS V2, CP 1243-7 LTE
To allow inter-station communication, the telecontrol server forwards the messages of the
sending station to the receiving station.
CP 1243-7 LTE
Operating Instructions, 04/2017, C79000-G8976-C381-03
Communication between S7-1200 stations and a control center
Application and properties
1.7 Configuration examples
23