In-Situ Aqua TROLL 400 Operators Manual User Manual
Page 35
800-446-1500
35
www.in-situ.com
Modbus Master RS232 Wiring Diagram (Converter Required)
Cable length between Master and Slave must not exceed 1,219 m (4,000 ft). 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
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