CUTES CT-2000F Series - 13 Series Communication User Manual; The Physical Link

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Serial Communications User Ma nual
13. Serial Communications User Manual
This product built in with standard RS422/RS485 communicate port, support
international standard MODBUS protocol, user can monitor single or many inverters
by using PLC, PC, industrial computer or other equipment which support MODBUS
protocol
A. The physical link
The wiring of this product can use either RS422(4 wires) or RS485(2wires), by jumper
J11 and J13.
J11 J13 Figure
Single RS422 Pin 2-3 short Open 13-1
Single RS485 Pin 1-2 short Open 13-2
Remote keyboard &
Single RS485
Pin 1-2 short
Pin 2-3 short
Short 13-3
INVERTER
INVERTER
………………. .
A+
A- B+ B-
A+ A- B+ B-
1/2W 150 Ω
R
R+
R-
Mas t er
T+
T-
R
R R
1/2W 150 Ω
1/2W 150 Ω
Fig 13-1