Modbus Communication
‑37‑
● MD520 supports one RS485 interface, which is located on the MD38TX1
communication card, as shown in the following figure.
Hardware connection procedure:
1. Take COM1 as an example. Connect one end of the network cable to CN1 of AM600
through the DB9 terminal, strip the other end of the cable and connect the RS485+,
RS485–, and GND0 wires to RS485+, RS485–, and GND terminals of the AC drive, as
shown in the following figure.
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