GREE ME50-00/EG(M) Modbus Gateway Kit for U-Match and Commercial HVAC Systems

<p>The <strong>GREE ME50-00/EG(M) Modbus Gateway Kit</strong> is a communication interface accessory designed for GREE commercial HVAC applications. It is used when a project requires centralized control, remote monitoring, or BMS integration for compatible GREE indoor units.</p><p>The gateway connects to the indoor unit communication network and acts as the bridge between the indoor unit main board and the external central controller or remote monitoring system. In the GREE gateway manual, the network diagram shows a central controller / remote monitor connected through the L1 communication network to multiple gateways, with each gateway connected to an indoor unit through L2 wiring. The same manual notes that the L1 network can connect up to <strong>255 gateways</strong>. </p><p>For GREE U-Match applications, GREE documentation describes <strong>ME50-00/EG(M)</strong> as a Modbus gateway / long-distance monitor option for connecting the unit to a BMS control system, with one network supporting up to <strong>255 devices</strong>.</p><p><br></p><p>Modbus gateway kit for compatible GREE HVAC systems</p><p>Model: <strong>ME50-00/EG(M)</strong></p><p>Used for central control, remote monitoring, or BMS connection</p><p>Connects indoor unit communication network to external controller / monitor</p><p>Commonly associated with GREE U-Match commercial indoor units</p><p>L1 communication network supports up to <strong>255 gateways</strong></p><p>Gateway includes screw terminals marked <strong>A, A, B, B</strong></p><p>Can be daisy-chained when multiple gateways are used</p><p>L1 communication cable: <strong>2-core twisted pair, AWG24</strong></p><p>If communication distance exceeds <strong>800 m</strong>, a photoelectric isolation repeater is required</p><p>L2 communication cable: <strong>6-core communication cord</strong>, standard configuration</p><p>Red power indicator: always on after power-on</p><p>Green communication indicator: blinks during operation</p>