HD67672-IP-4-A1 BACnet IP slave to RS-485 Modbus slave converter for BMS and industry

Industrial BACnet IP slave to RS-485 Modbus slave converter, housing type A (slim), DIN rail mount.

HD67672 allows you to connect a BACnet Master (for example a Supervisory System, etc) with a Modbus Master (for example a PLC, HMI, etc) in order to exchange the informations between the networks. Converter is easy to configure thanks to free SW67672 software. The device functions as a BACnet IP slave on the Ethernet side and as a RS-485 Modbus slave on the serial side, ensuring reliable interoperability between two widely used communication protocols. It is particularly useful for Building Management Systems (BMS) and industrial automation, where BACnet-based controllers need to integrate with legacy or field-level Modbus RTU devices. The compact slim housing type A makes it suitable for installations with limited cabinet space, while DIN rail mounting ensures quick and secure placement.

Configuration:

Thanks to the SW67672 software on your PC you can:

• Define the parameters of BACnet line
• Define the parameters of Modbus line
• Define BACnet objects that contains the data sent by the Master Modbus
• Define BACnet objects that contains the data to sent to the Master Modbus
• Update the device

The SW67672 software simplifies integration by allowing engineers to map RS-485 Modbus slave registers into BACnet IP slave objects. This makes Modbus field data immediately available to BACnet supervisory systems. It also supports firmware updates and diagnostic tools for troubleshooting, minimizing commissioning time and reducing overall costs. Its intuitive design makes it accessible for both experienced integrators and technicians who are new to BACnet/Modbus integration.

Characteristics:

• Up to 2048 BACnet objects (Read+Write)
• Triple isolation between BACnet - Power Supply, BACnet - Modbus, Power Supply - Modbus
• Bi-directional information exchange between BACnet bus and Modbus bus
• Mountable on 35mm DIN rail

With support for 2048 BACnet objects, the converter can manage large automation networks with high data volume. Its triple galvanic isolation guarantees stable operation and eliminates the risk of interference propagation between BACnet, Modbus, and the power supply. Bi-directional communication ensures that both protocols can read and write data seamlessly, enabling smooth integration in HVAC, lighting control, energy management, and process monitoring systems. This robust architecture makes the device ideal for mission-critical 24/7 operations.

Specifications:

• Ports: 2x Ethernet; 1x RS-485
• Serial protocol: RS-485 Modbus slave
• BACnet protocol: BACnet IP Slave
• Data Rates Serials: Up to 115200 bps
• Data Rates BACnet: 10/100 Base-T Autosensing
• Serials connector: 3way 5mm removable screw terminal
• BACnet connector: RJ45
• Power supply: 8 ~ 24V AC; 12 ~ 35V DC
• Power supply connector: 2way 5mm terminal block
• Operating temperature: -40°C to +85°C (-40°F to +185°F)
• Dimensions: 120 mm x 23 mm x 107 mm (DxWxH)
• Weight: 200g approx
• Mechanical fixing: 35mm DIN Rail mount
• Software: SW67672
• ORDER CODE: HD67672-IP-4-A1

The presence of dual Ethernet ports increases flexibility in BACnet IP networking, while the RS-485 Modbus slave port provides compatibility with numerous field devices. Its operating temperature range of -40°C to +85°C guarantees performance even in extreme industrial environments. Despite its compact size and low weight (~200 g), the device delivers high reliability and endurance, making it a dependable choice for long-term deployment in building and industrial automation.

Configurator – Software SW67672 FREE DOWNLOAD

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