Application and functions
1.5 Other services and properties
CP 1243-8 IRC
Operating Instructions, 02/2018, C79000-G8976-C385-03
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1.5
Other services and properties
Other services and properties
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Data point configuration
Due to the data point configuration in STEP 7 Basic, programming program blocks in
order to transfer the process data is unnecessary. The process data is configured as
individual data points and transferred one-to-1 to the master station.
●
IP configuration
Characteristics of the IP configuration of the Ethernet interface of the CP:
–
The CP supports IP addresses according to IPv4.
–
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.
●
Time-of-day synchronization
For information on the method and configuration, refer to the section Time-of-day
synchronization (Page 100).
For information on the format of the time stamp of the frames, refer to the section
Datapoint types (Page 135).
●
Access to the Web server of the CPU
With the aid of the Web server of the CPU, you can read out module data from the
station.
●
Send buffer
The CP saves the values of data points configured as an event in the send buffer.
The data is not saved retentively. It is lost in case of a power outage.
●
Event-driven transfer of process data
The CP transmits the data from the send buffer individually or bundled to the
communication partner. The transfer can be triggered by various triggers.
●
Analog value processing
Analog values can be preprocessed on the CP according to various methods.
