INBACMBM3K00000 – Modbus RTU or TCP to BACnet Gateway 3000 Points

Modbus RTU or TCP to BACnet INBACMBM3K00000 Gateway 3000 points. 

The INBACMBM3K00000 gateway offers seamless integration of Modbus RTU and Modbus TCP slave devices into BACnet IP or BACnet MS/TP-based systems. It supports up to 3000 data points, making it ideal for large-scale industrial automation or building management applications. The gateway complies with the B-AAC BACnet profile and is BTL-certified for interoperability and reliability in professional BACnet environments.

Designed for flexibility, the device allows simultaneous integration of both Modbus RTU and Modbus TCP devices. It can connect energy meters, HVAC controllers, PLCs, lighting systems, or other Modbus-based devices into BACnet infrastructures without the need for extra converters. This reduces network complexity and simplifies commissioning.

The hardware features two serial ports (EIA-485, EIA-232) and one 10/100 Mbps Ethernet port. Configuration DIP-switches enable easy setup of 120 Ω termination and line polarization, enhancing stability in noisy environments. The device ensures maximum protection with 1500 VDC electrical isolation on communication ports to prevent ground loops and interference.

A flexible power input of 9–36 VDC or 24 VAC supports a wide range of installation scenarios, from control panels to distributed automation networks. Clear LED indicators for power, error states, Ethernet link/speed, and TX/RX activity offer at-a-glance diagnostics. The compact UL 94 V-0 rated plastic housing can be DIN-rail or wall-mounted, optimizing space in control cabinets.

Technical Specifications:

• Port A:
  • 1x Serial EIA485 (2 poles)
  • 1x green SGND terminal block; 1500 VDC isolation
• Switch A:
  • Position 1: Termination 120 Ω ON/OFF
  • Position 2-3: Polarization ON/OFF
• Port B:
  • 1x Serial EIA232 SUB-D9 (reserved)
  • 1x Serial EIA485 (3 poles); A, B, SGND
• Switch B:
  • Same configuration as Port A
• Ethernet: 1x RJ45 10/100 Mbps
• Power supply: 9–36 VDC ±10% or 24 VAC ±10%
• Max consumption: 140 mA (DC), 127 mA (AC)
• LEDs: Power/Error, Ethernet, TX/RX for both ports, Button indicators
• Housing: Plastic (UL 94 V-0), IP20, RAL 7035, 90 × 88 × 56 mm
• Mounting: DIN rail (EN60715 TH35) or wall
• Temperature: 0°C to 60°C
• Humidity: 5–95% RH, non-condensing
• Warranty: 36 months

Old model code: IBOX-BAC-MBM. For integration support, contact our team here.