BACnet to Modbus

BACnet to Modbus Gateway


Product Info

The Anybus BACnet to Modbus gateway allows Modbus devices to communicate on a BACnet network. The gateway works as a translator between the two networks allowing Modbus RTU, ASCII or TCP-devices to show up as individual BACnet-compliant devices on a BACnet/IP network. This enables central control and supervision of Modbus devices in a building for example.

Modbus is simple to use but not BACnet compliant. This is where a gateway between Modbus and BACnet is needed!


  • Handles conversion between Modbus (RTU, ASCII, TCP) and BACnet/IP
  • Connects up to 30 Modbus serial devices to BACnet (processing up to 1000 Modbus registers).
  • Each connected Modbus device appears as an individual BACnet compliant device
  • Excel tool and instructions for creating Modbus Device Profiles are available
  • A resident web server allows for commissioning, and troubleshooting via a standard web browser
  • Comes in a rugged IP30 metal housing that mounts on 35-mm DIN-rail
  • A reset switch is provided for returning to the factory default IP address if required
  • LED indicators provide communication status on both the Ethernet and serial ports
  • External terminating resistors are included in the package. (No termination by default in the product)


BACnet is a data communication protocol mainly used in the building automation and HVAC industry (Heating Ventilation and Air-Conditioning). The most common serial version is called BACnet MS/TP while the dominant Ethernet version is BACnet/IP. Modbus remains a popular protocol. It is frequently used on mechanical equipment, such as:

  • Boiler controls
  • Variable speed drives
  • Metering applications

Available Models

Part Number Description
  024090-B Anybus BACnet to Modbus Gateway, gateway leaflet, installation sheet and external discrete terminating resistor.





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