Applications
RFI-9256 Radio Modem User Manual
Page 51 of 109
6.9 SCADA Network with Routing Table
A simple SCADA network using a routing table is shown in Figure 22.
RFI-9256
Master
RFI-9256
Slave 1
Main
Aux
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 1
Hopping Pattern: 25
Local Address: 1000
PROTOCOL CONFIGURATION
Main Port: Modbus
Single Route: 71 -> 2000:01
Mapped Route: 55-56 -> 3001:00
SERIAL CONFIGURATION
Main Port: 9600, 8O1, No Flow
RFI-9256
Slave 2
Main
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 1
Hopping Pattern: 25
Local Address: 2000
PROTOCOL CONFIGURATION
Aux Port: Modbus
Default Route: 1000:00
SERIAL CONFIGURATION
Aux Port: 9600, 8O1, No Flow
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 1
Hopping Pattern: 25
Local Address: 3001
PROTOCOL CONFIGURATION
Main Port: Modbus
Default Route: 1000:00
SERIAL CONFIGURATION
Main Port: 9600, 8O1, No Flow
RFI-9256
Slave 3
Main
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 1
Hopping Pattern: 25
Local Address: 3002
PROTOCOL CONFIGURATION
Main Port: Modbus
Default Route: 1000:00
SERIAL CONFIGURATION
Main Port: 9600, 8O1, No Flow
RTU
MASTER
RTU 71
RTU 55
RTU 56
Figure 22: SCADA network with routing table
In all SCADA routing networks, data travels from the master to one of the slaves, or from one of the slaves
to the master. The slaves each require a default route with the master units address.
The routing table for the master is Table 12.
