INMBSMID032I000 – Interface for Midea VRF and Commercial AC to Modbus RTU, 32 Units

INMBSMID032I000 – Interface for Midea VRF and Commercial AC to Modbus RTU, 32 Units. 

The newer version of this device is IN770AIR00MO000.

The INMBSMID032I000 gateway enables efficient and transparent bidirectional integration between Midea VRF and commercial air conditioning systems and any Modbus RTU-based control platform. With support for up to 32 indoor units, this interface is ideal for medium-sized installations requiring centralized HVAC management via BMS, PLC, or SCADA environments.

The device connects directly to the Midea outdoor units via the XYE communication bus, ensuring seamless access to every indoor unit in the system. Users can control and monitor essential HVAC functions such as operating mode, setpoint temperature, fan speed, and alarms. In addition, selected internal parameters of the outdoor units can be retrieved for diagnostic or energy efficiency purposes, offering enhanced visibility over the system's performance.

Configuration is handled using the powerful Intesis MAPS software, designed to streamline setup and integration. Custom profiles can be created for each project, while a built-in auto-discovery function automatically scans the connected Midea system to detect available units. This reduces commissioning time and ensures accuracy. The integrated diagnostics help identify communication errors and system malfunctions early, improving reliability and maintainability.

Technical Specifications:

Ports:
– 1x Modbus RTU port (EIA-485, 2-pole screw terminal: A, B)
– 1x AC bus port (Midea XYE, 2-pole screw terminal: X, Y)
– DIP Switches: 1x for AC features, 1x for Modbus RTU settings, 1x for additional functions

Power Supply:
– Terminal: 2-pole screw terminal (V1/V2)

Mechanical:
– Enclosure: Plastic PC, UL 94 V-0 rated
– Dimensions: 93mm x 58mm x 553mm (verify length; may be a typo)
– Color: Light grey, RAL 7035
– Protection class: IP20 (IEC60529)
– Mounting options: Wall or DIN rail (EN60715 TH35)
– Isolation voltage: 1500VDC
– Isolation resistance: 1000MΩ

Environmental:
– Operating temperature: 0°C to 60°C
– Storage temperature: -20°C to 85°C
– Humidity: <95%, non-condensing

Warranty: 36 months

The INMBSMID032I000 gateway is a robust and cost-effective solution for HVAC integrators looking to connect Midea VRF or commercial air conditioners to a Modbus network. It simplifies system monitoring, facilitates advanced energy management strategies, and allows building automation systems to take full control of HVAC operations.

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