INMBSHIS064O000 – Hisense VRF to Modbus RTU/TCP Gateway for 64 Indoor Units

INMBSHIS064O000 – Hisense VRF to Modbus RTU/TCP Gateway for 64 Indoor Units. 

The newer version of this device is IN770AIR00MO000.

The INMBSHIS064O000 gateway enables seamless bidirectional control and monitoring of Hisense VRF air-conditioning systems via both Modbus RTU and Modbus TCP protocols. Designed for medium-to-large installations, it manages up to 64 indoor units, giving BMS, SCADA and PLC platforms full access to operational and diagnostic data.

Connecting directly to the outdoor units through the H-Link bus, the interface exposes HVAC parameters such as set-point temperature, operating mode, fan speed and error states. Internal variables from the outdoor units are also available, aiding energy-efficiency analysis and predictive maintenance.

Setup is fast thanks to Intesis MAPS. The software offers automatic unit discovery, custom Modbus register mapping, live traffic diagnostics and over-the-air firmware updates. Whether you are integrating into an existing Modbus TCP backbone or a standalone RS485 network, the gateway’s dual-protocol engine handles both simultaneously.

Key Features

• Controls / monitors up to 64 Hisense indoor units
• Concurrent Modbus TCP (Ethernet) & Modbus RTU (RS485)
• Direct H-Link connection – no extra adapters required
• Automatic indoor-unit scan and point creation
• Data-logging via USB; configuration via USB or IP
• Front-panel LEDs for power, error and TX/RX status
• 1500 VDC galvanic isolation between all ports
• Industrial-grade PC enclosure, UL 94 V-0, DIN-rail or wall mount
• 3-year manufacturer’s warranty

Technical Specifications

Ports
• Port A: 1× H-Link (2-pole orange), plus reserved 2-pole green terminal
• Port B: 1× RS232 SUB-D9 male; 1× RS485 (A, B, SGND)
• DIP Switch B: 120 Ω termination & line polarisation settings
• Ethernet: 10/100 Mbps RJ45

Power
• 9 – 36 V DC ±10 % (max 140 mA) or 24 V AC ±10 % (max 127 mA) – 24 V DC recommended

LED Indicators
• 2× Run/Error • 2× Ethernet Link/Speed • 2× TX/RX Port A • 2× TX/RX Port B • Button A/B status

Mechanical
• Plastic PC (UL 94 V-0) • 90 × 88 × 56 mm • IP20 • Light grey RAL 7035 • Wall or DIN-rail (EN 60715 TH35)

Environmental
• Operating temp 0 – 60 °C • Humidity 5 – 95 % RH (non-condensing)

Looking for expert advice or a custom integration file? Contact our team – we’re happy to help.