YASKAWA VIPA System 300S+ Manual page 116

Deployment Ethernet communication - productive
Basics - IP address and subnet
Address at first start-up
Address classes
Private IP networks
Reserved Host-IDs
116
Subnet mask
IPv4 address
Subnet mask and IPv4 address
At the first start-up of the CPU, the Ethernet PG/OP channel and the PROFINET IO con-
troller do not have an IP address.
Information about the assignment of IP address data to the Ethernet PG/OP channel may
Ä Chapter 5.6 'Hardware configuration - Ethernet PG/OP channel'
be found in
on page 49.
Information about the assignment of IP address data to the EtherCAT connection may be
Ä 'Assign IP address parameters' on page 136
found in
For IPv4 addresses there are five address formats (class A to class E) that are all of a
length of 4byte = 32bit.
Class A 0 Network-ID (1+7bit)
Class B 10
Class C 110
Class D 1110
Class E 11110
The classes A, B and C are used for individual addresses, class D for multicast
addresses and class E is reserved for special purposes. The address formats of the 3
classes A, B, C are only differing in the length of Network-ID and Host-ID.
These addresses can be used as net-ID by several organizations without causing con-
flicts, for these IP addresses are neither assigned in the Internet nor are routed in the
Internet. To build up private IP-Networks within the Internet, RFC1597/1918 reserves the
following address areas:
Network class from IP
A 10.0.0.0
B 172.16.0.0
C 192.168.0.0
(The Host-ID is underlined.)
Some Host-IDs are reserved for special purposes.
Host-ID = "0"
Host-ID = maximum (binary complete "1")
binary all "1"
Net-ID
Net-ID
Network-ID (2+14bit)
Network-ID (3+21bit)
Multicast group
Reserved
to IP
10.255.255.255
172.31.255.255
192.168.255.255
Identifier of this network, reserved!
Broadcast address of this network
VIPA System 300S
binary all "0"
Host-ID
Subnet-ID new Host-ID
Host-ID (24bit)
Host-ID (16bit)
Host-ID (8bit)
Standard subnet
mask
255.0.0.0
255.255.0.0
255.255.255.0
HB140 | CPU | 317-4PN23 | en | 18-01
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