Moxa Technologies 331 Manuel d'utilisateur télécharger pdf (Page 23)

Moxa C Programmable RTU Controllers Getting Started

2-13

Configuring the Ethernet Interface

The network settings of the Moxa C programming RTU controller can be modified with the serial console port,

or online over the network.

Modifying Network Settings via Serial Console

Follow the instructions given in the previous section to access the serial console of the target RTU controller,

and then type #cd /etc/network to change directories.

Type #vi interfaces to edit the network configuration file with vi editor. Users can configure the Ethernet ports

of the RTU controller for static or dynamic (DHCP) IP addresses.

Static IP addresses

As shown in the table below, 4 network addresses must be modified: address, network, netmask, and

broadcast. The default IP address for LAN1 is 192.168.127.254, with default netmask of 255.255.255.0.

Dynamic IP addresses

By default, the RTU controller is configured for “static” IP addresses. To configure the LAN port to request an

IP address dynamically, replace static with dhcp and then delete the address, network, netmask, and

broadcast lines.

Default Setting for LAN1 Dynamic Setting using DHCP

iface eth0 inet static

address 192.168.127.254

network: 192.168.127.0

netmask 255.255.255.0

broadcast 192.168.127.255

iface eth0 inet dhcp

After the LAN interface settings have been modified and saved, perform the following command to activate the

LAN settings immediately:

#/etc/init.d/networking restart

NOTE

After changing the IP settings, use the netw

orking restart command to activate the new IP address.

User

s must modify the /etc/network/interfaces to store the new settings. Using commands such as

#ifconfig eth0 192.168.1.1

WILL NOT save the settings to the flash memory.

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Moxa Technologies 331 Manuel d'utilisateur Page 23