INMBSMID004I000 – Interface for Midea VRF and commercial AC to Modbus RTU (4 indoor units)

INMBSMID004I000 – Interface for Midea VRF and commercial AC to Modbus RTU (4 indoor units). 

The newer version of this device is IN770AIR00SO000.

The INMBSMID004I000 interface by Intesis is a specialized solution for bidirectional integration of Midea VRF and commercial line systems with any Modbus RTU master device such as BMS, SCADA, or PLC. Designed for compact installations, it allows control of up to 4 indoor units, making it ideal for residential or small commercial environments that demand efficient climate control and monitoring.

The gateway is connected directly to the XYE communication bus of Midea outdoor units, providing full control over the connected indoor units. Through Modbus RTU, you can manage essential HVAC functions such as temperature, mode, fan speed, and also monitor internal variables and status indicators of the connected units.

Using the Intesis MAPS configuration software, you can easily define and adapt your setup. It supports automatic device discovery thanks to its powerful scan function, which makes commissioning quick and hassle-free. Additionally, its diagnostic capabilities help identify issues and malfunctions during operation, improving system reliability and minimizing downtime.

Key Features:

• Supports up to 4 indoor units of Midea VRF and commercial lines
• Direct connection to Midea XYE bus
• Bidirectional control and monitoring via Modbus RTU
• Simple setup via Intesis MAPS software
• Automatic scan function to detect units
• DIN-rail or wall mounting for flexible installation
• Diagnostic tools for real-time troubleshooting
• 3-year manufacturer's warranty

Technical Specification:

Ports:
• Modbus RTU Port:
– 1x Serial EIA485 terminal block (2 poles): A, B
– Compatible with Modbus RTU EIA-485

• AC Unit Port:
– 1x XYE Plug-in terminal block (2 poles): X, Y
– Compatible with Midea XYE communication bus

• Switches:
– Switch 1: DIP-Switch for AC control features
– Switch 3: DIP-Switch for Modbus RTU settings
– Switch 4: DIP-Switch for extra functions

Power:
• Connector: 1x V1 V2 screw terminal (2 poles)

Mechanical:
• Construction: Plastic (PC), UL 94 V-0
• Dimensions: 93mm × 58mm × 553mm
• Color: Light grey (RAL 7035)
• Protection class: IP20 (IEC60529)
• Mounting options: DIN rail EN60715 TH35 or wall mount
• 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

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