HMS Anybus Communicator CAN PROFINET IRT 2.32, Руководство пользователя

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Configuration 19 (42)
4.2 Network Configuration
To be able to communicate over Ethernet, the PROFINET network interface needs a valid TCP/IP
configuration. This section explains some basic concepts and describes how to configure the
TCP/IP settings using the
IPconfig software tool.
When Ethernet communication has been established the TCP/IP settings can also be changed
from the web interface. See
Web Pages, p. 23 .
4.2.1 Basic TCP/IP Concepts
IP Address
The IP address is used to identify each node on a TCP/IP network. IP addresses are written as
four decimal integers (0–255) separated by dots, where each integer represents the binary value
of one byte of the IP address. This is known as
dot-decimal notation .
Example:
10000000 00001010 00000010 00011110
is written as
128.10.2.30
The following IP addresses are reserved for special purposes and cannot be used:
0.n.n.n
First byte zero — used for broadcast messages
127.n.n.n
First byte 127 — used for loopback addresses to the local host
n.n.n.0
Last byte zero — identifies a whole network/subnet
n.n.n.255
Last byte 255 — used for broadcast messages
Subnet Mask
The IP address is divided into three parts: Net ID , Subnet ID and Host ID . A subnet mask is a 32-
bit binary pattern, where a set bit allocates a bit for Network/Subnet ID, and a cleared bit
allocates a bit for the Host ID. The subnet mask is usually written in dot-decimal notation.
Example: To make the IP address
128.10.2.30
belong to subnet
128.10.2
, the subnet
mask must be
255.255.255.0
.
Default Gateway
For devices to be able to communicate over Ethernet they must either belong to the same
subnet or communicate via a gateway or router.
A gateway or router routes communication between networks, i.e. it enables the nodes on one
network to access the nodes on another. The
default gateway address in the TCP/IP settings of
your product specifies the IP address of the gateway or router on the local network.
Anybus ® Communicator ™ CAN PROFINET ® IRT (2.32) User Manual
SCM-1202-035 1.2 en-US