Siemens CP 1243-1, Руководство по эксплуатации

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Configuration
4.8 Partner stations
CP 1243-1
Operating Instructions, 04/2017, C79000-G8976-C365-03
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● Protocol type
Only for DNP3
Selection of the protocol type on the transport layer: TCP / UDP
● Partner port
Only with TeleControl Basic
Number of the listener port of the telecontrol server.
4.8.2 TeleControl Basic
4.8.2.1 Addressing in the redundant TCSB system
Addressing of the redundant telecontrol server
● Addressing of the TCSB redundancy group by the stations using one IP address
In the LAN in the master station to which the TCSB server PCs and the DSL router (e.g.
SCALANCE M) are connected, the Network Load Balancing (NLB) of the computer
operating system will assign a common virtual IP address to the two server PCs.
This IP address is configured depending on the network setup:
–
If only one CP without a DSL router is connected, the virtual address assigned by the
NLB must be configured in the CP as the IP address of the telecontrol server.
– If a DSL router is used, only one IP address will be configured to address the
redundant telecontrol server in the stations, the public address of the DSL router.
Set the port forwarding on the DSL router so that the public IP address (external
network) is led to the virtual IP address of the TCSB server PCs (internal network).
Only the public IP address is reachable from the Internet. The station does not
therefore receive any information telling it which of the two computers of the
redundancy group it is connected to.