Siemens SIMATIC NET S7-1200 - Configuration and operation; Addressing and network configuration

CP 1243-1 DNP3, CP 1243-1 IEC
Operating Instructions, 02/2014, C79000-G8976-C312-02
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Configuration and operation
5
5.1
Note on operation
NOTICE
Closing the front panels
To ensure interference-free operation, keep the front panels of the module closed during
operation.
5.2
Addressing and network configuration
To configure and commission the CP, the following information is required:
Address information of the master
The following information is required for the STEP 7 configuration of the CP:
● Address of the master
– IP address
or
– Name that can be resolved with DNS
If you use DNS, there must be a DNS server (see below) and this must be reachable
for the CP.
● Port number of the listener port of the master
● DNS server address(es)
You require the DNS server address if you address the master using a name that can be
resolved by DNS.
Configurations with connections over the Internet: VPN connections
For connections running via the Internet, dynamic IP addresses can be used.
To allow communication in both directions and to ensure that the data is protected during
transfer, a connection with a VPN tunnel is necessary. The security module SCALANCE S is
ideal for this purpose.
Remember the following points when configuring: