Configuration and operation
4.5 Telecontrol communication (CP 1542SP-1 IRC)
CP 1542SP-1, CP 1542SP-1 IRC, CP 1543SP-1
Operating Instructions, 01/2017, C79000-G8976-C426-03
55
Addressing of single and redundant communications partners
Addressing the telecontrol server
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Addressing of a single telecontrol server
Configure the IP address of the telecontrol server or the DSL router when connecting via
the Internet.
When using a DynDNS service with the host name (FQDN) can be specified.
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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 a 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 (TCP) 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.
Addressing redundant DNP3 or IEC masters
For each master specify the master station address and the IP address being used.
Partner for inter-station communication
Only when using the "TeleControl Basic" protocol
Inter-station communication
In this table, you specify the S7 stations and CPs with which the current station will use inter-
station communication. Connections for inter-station communication run via the telecontrol
server.
The partner number is assigned by the system. It is required during data point configuration
to assign data points to their communications partners.
For inter-station communication, the partner is addressed with the parameters "Project",
"Station" and "Slot".
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