HD67671-IP-4-A1 BACnet IP slave to RS-485 Modbus master converter for automation

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

HD67671 allows you to connect a BACnet Master (for example a Supervisory System, etc) with some Modbus slaves. Converter is easy to configure thanks to free SW67671 software. The device operates as a BACnet IP slave on the Ethernet side and as a RS-485 Modbus master on the serial side, enabling seamless interoperability between IP-based building automation systems and Modbus RTU devices. This makes it an ideal solution for Building Management Systems (BMS), HVAC control, energy management, and industrial automation, where BACnet controllers need to interact with Modbus-based field devices. Thanks to its slim DIN rail housing, the converter fits even in compact control panels and retrofit installations.

Configuration:

Thanks to the SW67671 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 read from the Modbus slaves
• Define BACnet objects that contains the data to send to the Modbus slaves
• Update the device

SW67671 configuration software allows users to easily map RS-485 Modbus slave registers into BACnet IP slave objects. This mapping provides BACnet supervisory systems with direct access to Modbus field data without the need for additional middleware. The tool also offers firmware update functionality and real-time diagnostics, reducing commissioning time and increasing reliability of integration projects.

Characteristics:

• Up to 2000 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 Rail DIN

With support for up to 2000 BACnet objects, the HD67671 can be used in large-scale automation projects requiring extensive data exchange. The triple galvanic isolation ensures safe and stable operation, preventing electrical disturbances from spreading between the networks. Its reliability and robustness make it suitable for 24/7 operation in mission-critical systems, while the slim housing optimizes use of control cabinet space.

Specifications:

• Ports: 2x Ethernet; 1x RS-485
• Serial protocol: RS-485 Modbus Master
• 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° to +85° (-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: SW67671
• ORDER CODE: HD67671-IP-4-A1

The two Ethernet ports provide flexible network integration, while the RS-485 Modbus master interface ensures compatibility with a wide range of Modbus RTU devices. Its extended operating temperature range (-40°C to +85°C) guarantees reliable performance under harsh industrial conditions. The device is compact (120 × 23 × 107 mm) and lightweight (approx. 200 g), making it easy to install and maintain, even in demanding automation projects.

Configurator – Software SW67671 FREE DOWNLOAD

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