Westermo MRD-3x0 - Manual (Page 180)

180 6623-3201
7.7 Modbus IP-Serial Gateway
7.7.1 Description
The Modbus IP-Serial Gateway carries out translation between
Modbus/TCP and Modbus/RTU or Modbus/ASCII. This means
that Modbus serial slaves can be directly attached to the unit's
serial ports without any external protocol convertors.
7.7.2 Selecting the port function
The serial server configuration is accessed by selecting Serial
Server from the main menu and Port Setup from the submenu.
To enable a port for the Modbus IP-Serial Gateway function,
select Modbus IP-Serial Gateway from the Function column of
the appropriate port. Once selected, click Update to confirm
the change. Once confirmed, the port will display as shown in
Figure 127.
Figure 127: Selecting Modbus Gateway function