GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
275
(1) Interface Drawing
RS485-1 interface, for
communication with
Gree Web-based
Remote Monitoring and
Control System/BMS
CAN interface, for
communication
with air conditioning units
Digital
input (DI)
Digital
output (DO)
Power input
Gateway
Power input
Running
Alarm
Power
Address
Function
(2) Power Supply Interfaces
CAN Interface: It is connected to the air conditioning system through twisted pairs so as to get
through the communication between the Modbus gateway and the air conditioning system.
RS485-1 Interface: It is connected to Gree Web-based Remote Monitoring and Control
System/BMS through twisted pairs so as to get through the communication between the Modbus
gateway and the Gree Web-based Remote Monitoring and Control System/BMS.
RS485-2 Interface: it is reserved.
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