Specifications

Web browser based management
UMMBRG300-1101 19
The following Ethernet parameters are shown:
MAC address
The device' unique MAC address. This number is hard coded and cannot be changed.
The following Internet protocol (IP) settings can be entered:
IP address
The IP address assigned to this device.
Subnet mask (also known as indexterm2:[network mask])
If you have a router, enter the subnet mask for the segment to which this device is
attached.
Gateway address
If your network segment has a router, enter its IP address here. Otherwise leave the
address as 0.0.0.0.
Once you click Save the new settings are stored and applied instantly. The new settings
are confirmed with the following page:
Figure5.6:IP settings changed confirmation
Please write down the new IP address so you are able to communicate with the
device in the future!
Configuring serial line Modbus
The Modbus settings for serial line can be configured to match the network configuration
of your Modbus master device. Select the Configuration#Modbus sub-menu from the
menu bar to open the Modbus settings which are shown below:
Figure5.7:Modbus settings page
The following Modbus settings can be entered:
Physical layer
Can be set to two-wire RS-485, RS-422 or RS-232 mode. RS-485 is the default.
Depending on this setting either the D-sub (RS-232) connector or the terminal block
connector (RS-485/422) of the MBRG-300 is utilized. The (RS-485 + RS-422) mode
is a special mode which allows operating one RS-422 device and a RS-485 bus one
the same serial interface.
Transmission mode
Only RTU mode can be selected here.