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Reference Manual
00809-0200-4410, Rev BA
Section 5: Host Integration
February 2014
Host Integration
Figure 5-3. Security Protocols page (internal firewall)
5.4
Modbus
The Gateway supports both Modbus RTU over the RS-485 serial port and Modbus TCP over
Ethernet. It functions as a sub device on the Modbus network and must be polled by a Modbus
master or client (host system).
5.4.1
Communication settings
It is import that the Modbus communication settings in the Gateway match the settings in the
Modbus master or client. Please refer to host system documentation for more information on
how to configure these settings. The Modbus communication settings can be found by
navigating to
Setup>Modbus>Communications
.