Siemens CP 1243-1 - Configuration with Connections over the Internet

Application and properties
1.6 Configuration examples
CP 1243-1
Operating Instructions, 04/2017, C79000-G8976-C365-03
21
1.6.3.2
Configuration with connections over the Internet
Configuration example with connections over the Internet
The following example contains a configuration with a non-redundant control center.
In this example, the DNP3 protocol is used. A configuration in which the IEC protocol is used
would have the same setup.
The S7-1200 stations are connected to the Internet via the CP and connected to the control
center.
When using the DNP3 protocol, for example, SIMATIC PCS 7 TeleControl or the system of a
third-party provider can be used as the control center. If you use SIMATIC PCS 7
TeleControl as the DPN3 master in the control center, you require the necessary DPN3
driver.
Figure 1-5 Configuration example with connections over the Internet
As an alternative to the router SCALANCE 812, you can also use a standard DSL modem
and establish the VPN connection with a security module SCALANCE S.
Addressing
Refer to the information in the section DNP3 / IEC (Page 41).