communication interface, in which The MODBUS standard protocol is used for
communication. The inverters can be used as slave connected to the host (such as PLC
controller, PC), both of which have the same communication interface and protocol, for the
purpose of centralized monitoring of the inverters. Or one inverter can be used as host and
other inverters as slaves, all connected with RS485 communication interface, to achieve
multi-machine interaction of the inverters. And with this communication interface, a
Keyboard can also be connected to inverters for remote operation.
The MODBUS communication protocol of the inverter supports two transmitting ways: RTU
mode, the following is a detailed description of the communication protocol of the inverter.
9.2 Communication protocol specification
9.2.1 Communications networking methods
1． networking methods with inverter as slave:
Fig. 9－1 networking of slaves
(2) The networking of multi-machine interaction：
Fig. The networking of multi-machine interaction
9.2.2 Communication protocol
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