HD67671-MSTP-2-A1 – BACnet MSTP Slave to RS-232 Modbus Master Converter

Industrial BACnet MSTP slave to RS-232 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. This device has been specifically designed for industrial automation and building management systems (BMS), where communication between BACnet and Modbus protocols is frequently required. Thanks to its slim housing type A and DIN rail mount, the converter can be easily integrated into compact control cabinets without wasting valuable space. Its robust design guarantees reliable operation in demanding industrial environments.

The HD67671 supports bi-directional data exchange, making it possible to seamlessly share information between a BACnet MSTP network and Modbus RTU devices. This capability is particularly valuable in applications such as HVAC control, lighting systems, energy monitoring, and industrial process automation, where interoperability of devices based on different standards is a necessity. The unit can handle up to 2000 BACnet objects, providing sufficient capacity even for large installations. The implemented triple isolation between BACnet, Modbus and power supply ensures safety, stability and protection of connected equipment against surges and electromagnetic interference.

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

The configuration interface is intuitive and designed for technicians who need to save time during commissioning. It allows importing, exporting and duplicating configurations, which is particularly useful when deploying multiple converters. Additionally, the software supports diagnostics to verify correct communication between devices and quickly troubleshoot any network issues.

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 – housing type A (slim)
• Supports both low and high-speed communication up to 115200 bps
• Optimized for continuous 24/7 operation in industrial and building automation

This feature set ensures that the converter is versatile enough to be used in energy plants, smart buildings and transportation systems, where protocol integration is critical for centralized control.

Specifications:

• Ports: 1x RS-485; 1x RS-232; 1x Ethernet (programming port)
• Serial protocol: Modbus Master
• BACnet protocol: BACnet MSTP Slave
• Data Rates Serials: Up to 115200 bps
• Data Rates BACnet: Up to 115200 bps
• Serials connector: D-sub connector, type DE-9 Male
• BACnet connector: 3way 5mm removable screw terminal
• Power supply: 8 ~ 24VAC; 12 ~ 35VDC
• 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: SW67671
• ORDER CODE: HD67671-MSTP-2-A1

Configurator – Software SW67671 FREE DOWNLOAD

Manufacturer's warranty: 24 months

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