Samsung to Modbus RTU/TCP – Model INMBSSAM064O000 | Intesis by HMS

INMBSSAM064O000 – Samsung NASA VRF to Modbus RTU/TCP Gateway (64 units). 

The newer version of this device is IN770AIR00MO000

The INMBSSAM064O000 gateway by Intesis enables full bidirectional integration of Samsung NASA VRF systems with Modbus-based BMS, SCADA, or industrial automation systems. Supporting up to 64 indoor units, it is an ideal solution for medium and large installations requiring seamless communication between HVAC and Modbus networks.

This industrial-grade interface connects directly to the outdoor unit's communication bus and allows centralized control over each indoor unit. Users can manage key functions such as setpoint temperature, fan speed, mode selection, and ON/OFF states, while also accessing advanced diagnostic values from outdoor units.

The configuration is done through the powerful Intesis MAPS platform. Its user-friendly interface allows for custom point mapping, import/export of configurations, live data monitoring, and automatic unit scanning. Thanks to its built-in diagnostics engine, technicians can quickly identify errors or communication issues across the installation.

The gateway supports both Modbus RTU (RS232/RS485) and Modbus TCP (Ethernet) communications, providing maximum flexibility. Additionally, a console port allows firmware upgrades and local debugging. Status LEDs provide real-time communication and power feedback, improving maintenance efficiency.

Technical specifications:

Terminal wiring:
– Solid or stranded wires with or without ferrule
– 1 core: 0.5–2.5 mm²
– 2 cores: 0.5–1.5 mm²
– 3 cores: not permitted

Ports:
– 1 x Samsung AC port (EIA485, 2-pole terminal, SELV)
– 1 x Modbus RTU RS232 (DB9 male, SELV)
– 1 x Modbus RTU RS485 (2-pole screw terminal, SELV)
– 1 x Modbus TCP Ethernet (100Base-T RJ45)
– 1 x Console port RS232 (DB9 female, DCE, SELV – also for setup and firmware updates)

Power supply:
– 2-pole plug-in screw terminal
– 9–30 VDC ±10%, Max 125 mA or 24 VAC ±10%, 50–60Hz, Max 127 mA
– Must use NEC Class 2 or LPS and SELV-rated power supply

LED indicators:
– 1 x Power
– 2 x Modbus RTU communication (Tx, Rx)
– 2 x Samsung AC communication (Tx, Rx)
– 2 x Ethernet (LNK, ACT)

Enclosure:
– Material: Plastic PC (UL 94 V-0)
– Dimensions: 107 × 105 × 58 mm
– Color: Light Grey (RAL 7035)
– Protection: IP20 (IEC 60529)
– Mounting: Wall or DIN rail EN60715 TH35

Environmental:
– Operating temperature: 0°C to 70°C
– Humidity: 5% to 95%, non-condensing

Certifications:
– CE conformity with EMC Directive (2004/108/EC) and Low Voltage Directive (2006/95/EC)
– RoHS compliance (2002/95/CE)
– EN 61000-6-2, EN 61000-6-3, EN 60950-1, EN 50491-3

Manufacturer warranty: 36 months

If you’re looking for a reliable gateway for integrating Samsung NASA VRF systems into a Modbus infrastructure, the INMBSSAM064O000 offers flexibility, scalability, and robust industrial features. For technical advice or purchase inquiries, contact us via: https://consteel-electronics.com/contact-us