Chapter 6 Deployment CPU 31x with TCP/IP Manual VIPA System 300V
6-10 HB130E - CPU - Rev. 11/50
IP address
The IP address is a 32Bit address that must be unique within the network.
The IP address consists of 4 numbers that are separated by a full stop.
The structure of an IP address is as follows:
xxx.xxx.xxx.xxx
Range: 000.000.000.000 to 255.255.255.255
The network administrator also defines IP addresses.
The broadcast address (transmit a message to all stations) is always:
255.255.255.255
Attention!
Certain IP addresses are restricted e.g. 000.000.000.000 These addresses
are reserved for special services!
When the CPU 31xNET is first turned on, the module has an predefined
initial IP address.
This address is available from a label that has been attached to the side of
the module res. in the protocol added to your CPU.
At the first commissioning, the CP portion has the following default settings
for IP address and subnet mask:
IP Address: 172.16.192.11
Subnet Mask: 255.255.255.0
Starting with WinNCS version V 3.12 you have the comfortable possibility
to search stations in the Ethernet, to import their project engineering an to
change their IP addresses without changing the IP circuit.
Attention!
Please regard! If you change the IP Address of the CP by using
[Change IP], the configuration inside the CP is cleared.
IP address
structure
Initial Address
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