HD67843-B2 – Industrial DALI to Modbus RTU Slave converter for lighting integration

Industrial DALI to Modbus RTU Slave converter, housing type B (wide), DIN rail mount.

HD67843-B2 allows you to connect a DALI net (like a light system etc.) with a Modbus TCP Master (like a PLC, etc) in order to exchange informations between the nets. Converter is easy to configure thanks to free SW67843 software.

The HD67843-B2 is specifically designed for seamless integration of DALI-based lighting systems with automation platforms operating on the Modbus RTU protocol. This enables building managers and system integrators to unify lighting management with HVAC, energy metering, or safety systems through Modbus SCADA or PLC environments. By bridging DALI fixtures with Modbus networks, centralized control and real-time monitoring become possible in modern smart buildings.

The device supports up to 64 DALI devices on a single bus, including ballasts, LED drivers, and sensors. Using the integrated DALI Console software, users can configure IDs, groups, and lighting scenes, while the SW67843 configuration software allows mapping of DALI parameters into Modbus registers. This dual software approach provides flexibility in commissioning and simplifies integration of large lighting networks with industrial automation systems.

Configuration:

Thanks to the "DALI Console" software on your PC you can:

• Configure the DALI network
• Setup the DALI devices (groups, scenes, IDs, etc.)
• Test DALI communication

Thanks to the SW67843 software on your PC you can:

• Define the parameters of DALI line
• Define the parameters of Modbus line
• Update the device

The configuration workflow ensures fast commissioning even in complex projects, enabling integrators to map lighting control functions into Modbus SCADA platforms with minimal effort.

Characteristics:

• Up to 64 devices on DALI bus
• Configurator for DALI network/devices
• Isolation between DALI – RS485, Power Supply – RS485; Additional isolation Power Supply – DALI for HD67843-B2-N version
• Bi-directional information exchange between Modbus bus and DALI bus
• Mountable on 35mm Rail DIN

This isolation ensures robust and safe operation even in electrically noisy environments, protecting both field devices and the central automation system.

Specifications:

• Ports: 1x DALI; 1x RS485
• DALI protocol: DALI
• RS485 protocol: Modbus RTU Slave
• Data Rates DALI: 1200 bps
• Data Rates Modbus: Up to 115200 bps
• DALI Connector: 2way 5mm terminal block
• Modbus Connector: 3way 5mm terminal block
• Power supply: 8...24VAC; 12...35VDC
• Power supply Connector: 2way 5mm terminal block
• Operating temperature: -40°C to +85°C (-40°F/+185°F)
• Dimensions: 36 mm x 60 mm x 95 mm (DxWxH)
• Weight: 200g approx
• Mechanical fixing: DIN Rail mount
• Software: SW67843
• ORDER CODE: HD67843-B2

Configurator – Software SW67843 FREE DOWNLOAD

Manufacturer's warranty: 24 months

The HD67843-B2 is widely applied in commercial buildings, warehouses, airports, and industrial plants, where efficient lighting control is essential. By integrating with Modbus, facility managers can centralize monitoring of DALI devices, schedule lighting scenes, and perform predictive maintenance by tracking device status and failures.

Its compact housing, wide operating temperature range, and robust design make it a future-proof and cost-effective solution for advanced lighting automation projects.

For more details and technical support, please visit our contact page.