Application and properties
1.3 Other services and properties
CP 1243-1
12 Operating Instructions, 12/2016, C79000-G8976-C365-02
Other services and properties
Other services and properties
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Due to the data point configuration in STEP 7, programming program blocks in order to
transfer the process data is unnecessary. The individual data points are processed one-
to-one in the control system.
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IP configuration - IPv4 and IPv6
– IPv4 / IPv6
The CP supports IP addresses according to IPv4 and IPv6.
For telecontrol applications in IPv6 networks, an IPv6 address can be used in addition
to an IPv4 address.
– Address assignment
The IP address, the subnet mask and the address of a gateway can be set manually
in the configuration.
As an alternative, the IP address can be obtained from a DHCP server or by other
means outside the configuration.
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Time-of-day synchronization
– When telecontrol communication is enabled, the CP obtains its local time of day as
UTC time from the partner (TCSB). The time of day can be read from the CPU. The
mechanisms are described in the STEP 7 information system.
For information on the format of the time stamp, refer to the section Datapoint types
(Page 71).
– If telecontrol communication is disabled, the time of day can be obtained from an NTP
server or from the CPU.
– If the security functions are enabled, the secure method NTP (secure) can be used.
For more information, refer to the section Time-of-day synchronization (Page 50).
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The CP can communicate with a redundant installation of TCSB.
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The CP can store events of different classes chronologically and transfer them
spontaneously or together to the telecontrol server.
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Data transfer is on request or triggered
The telecontrol communication with TCSB is triggered in two ways:
– After a request by TCSB or an OPC client connected to TCSB
– Triggered by various selectable criteria
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