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13. MODBUS communication
■
◆MODBUS communication
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.
■ The physical links
The wiring of this product can use either RS422（4 wires）or RS485（2 wires）, by
JUMPER(J5).
422/485 setting
RS422 RS485
TA TB RA RB IG TA TBRARBIG
T+
T
R+
R
Master
R R R R
FG/FP
FG/FP
Fig. RS422 The physical links
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