Gree VRF, Service Manual

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Gree VRF Protocol Gateway
2
Chapter 1 Installation
1 Introduction to System
Gree VRF Protocol Gateway ME30-24/D1(BM) can realize the data exchange between air
conditioner and Building Management System (the following refers to BMS), providing standard
Modbus RTU, Modbus TCP and BACnet/IP building interfaces.
Through the gateway, administrator can conduct data collection, monitor and control of
operating status of multi VRF air conditioner in long distance, and can give out alarm of errors of
air conditioner in time. Moreover, it can provide protocol interfaces of Modbus RTU, Modbus TCP
or BACnet/IP to connect BMS. There is no need for maintenance personnel to set and manage
each set of units on the spot, they just need to sit in front of the computer to perform operation
management such as viewing the operating status of building air-conditioning system, ON and
OFF status of unit, setting of temperature and humidity, etc., which not only greatly improves work
efficiency, but also reduces labor costs and management costs.
The gateway is applicable to GMV5S all DC inverter multi VRF unit, GMV5 DC inverter multi
VRF unit, GMV water source heat pump DC inverter multi VRF unit, GMV ES DC inverter multi
VRF unit, GMV Tops residential multi VRF unit, GMV Star residential multi VRF unit, GMV6 multi
VRF unit.
Note: Later the Gree VRF Protocol Gateway ME30-24/D1(BM) is called gateway for short.
Internet topological graph:
Fig. 1 Network topology for communication method of Modbus RTU