Reference Guide User Manual

1.5 Modbus Master RS232 Wiring Diagram (Converter Required)

Cable length between Master and Slave must not exceed 1219.2 m (4000 ft). Rugged Cable

length between Master and Converter must not exceed 6 m (20 ft).

Signal Color

Ground/Return Black

External Power

(12-36 VDC, voltage limited by

converter)

Red

RS485 (-) Green

RS485 (+) Blue