Application and properties
1.5 Configuration examples
CP 1243-1 DNP3, CP 1243-1 IEC
Operating Instructions, 02/2014, C79000-G8976-C312-02
15
A configuration in which the IEC protocol is used would have the same setup apart from the
CP type (here CP 1243-1 IEC).
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 1-2 Configuration example with connections over the Internet
Options of the Internet connection
There are various ways of configuring the Internet connection:
● DSL modem + SCALANCE S
This is the configuration of the example shown in the figure.
In this case, use a standard DSL modem. With the security module SCALANCE S, you
establish the VPN connection.
● DSL router with VPN capability
In such a configuration, use a DSL router with VPN capability.
● Mobile wireless router
If the station needs to be connected to the Internet using mobile wireless (GSM network /
GPRS), the SIMATIC NET router SCALANCE M87x is used.
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