RLE Protocol Converter V.2.4 - Manual (Page 19)

rletech.com Protocol Converter User Guide 19
2 Installation
2.3.4 Modbus EIA-485 Connections
The Protocol Converter can function as a Modbus Slave or Modbus Master over an EIA-485
hardware connection. The Dual Port Protocol Converter contains three EIA-485 ports, and
EIA-485 Port 2 can be configured as either a 2-wire or 4-wire connection by wiring the port
appropriately and turning on the Duplex DIP switch. See Table 1.2 and Table 1.3 on page 14
for information about configuring this port.
Figure 2.6 EIA-485 Connection, 2-wire
Figure 2.7 EIA-485 Connection, 4-wire