INMBSMEB0200000 – Industrial M-Bus to Modbus Gateway for 20 Devices and 500 Data Points

INMBSMEB0200000 – M-Bus to Modbus Gateway for 500 Points and 20 Devices. 

The INMBSMEB0200000 gateway from Intesis is designed to enable bidirectional integration between M-Bus meters and Modbus-based systems such as BMS, SCADA or industrial PLCs. It supports up to 20 M-Bus devices and makes available up to 500 data points in the Modbus network, allowing precise and scalable metering integration for energy, water, gas and heat consumption.

The device works as a Modbus slave on the Modbus side, responding to polling requests from a Modbus master and making data acquired from M-Bus meters available through its Modbus registers. On the M-Bus side, the gateway behaves as an M-Bus master, actively querying devices and forwarding the data to the Modbus network. This makes it ideal for centralized monitoring and control of distributed metering infrastructure.

Key Features:

• Supports up to 20 M-Bus meters and 500 Modbus points
• Bidirectional communication between M-Bus and Modbus
• Compatible with Modbus RTU and Modbus TCP
• Ideal for energy monitoring and building management systems
• Powerful integration with real-time data acquisition and diagnostics

Ports and Interfaces:

• Ethernet: 1x 10/100 Mbps RJ45 with status LEDs
• Port A: 1x M-Bus terminal block (36VDC / 210mA, 1500VDC isolated)
• Additional reserved terminal for future use
• Port B: 1x RS232 (DB9 male), 1x RS485 (3-pin terminal, A/B/SGND, 1500VDC isolated)
• Console port: USB Mini Type-B (1500VDC isolation)
• USB port: Type-A for flash storage, 150mA max

Configuration Switches:

• Switch A: Reserved DIP-switch for Port A
• Switch B: DIP-switch for RS485 with termination and polarization options

Power Supply:

• Input: 9 to 36 VDC ±10% / max 140mA or 24 VAC ±10% 50–60Hz / max 127mA
• Startup power draw: max 30W (transient)

Battery Backup:

• Coin cell: 20mm x 3.2mm
• 3V / 225mAh (Manganese Dioxide Lithium)

Status Indicators:

• 2x Power/Error
• 2x M-Bus Port A activity (TX/RX)
• 2x Port B activity (TX/RX)
• 2x Ethernet (Link, Speed)
• 1x LED for Button A
• 1x LED for Button B

Mechanical and Environmental:

• Enclosure: Plastic PC (UL 94 V-0)
• Dimensions: 90 x 88 x 56 mm
• Color: Light Grey (RAL 7035)
• IP Protection: IP20 (IEC60529)
• Mounting: Wall mount or DIN rail (EN60715 TH35)
• Operating temperature: 0°C to 60°C
• Humidity: 5% to 90%, non-condensing

Warranty: 36 months

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