HD67518-B2 DMX to Modbus Master – Industrial Converter for Lighting and Automation

Industrial DMX to Modbus master converter, housing type B, DIN rail mount.

The HD67518 is a DMX to Modbus master Converter and it allows you to connect some DMX devices (for example a Light System...) with some Modbus slaves.

The HD67518-B2 bridges professional DMX512 lighting with industrial Modbus infrastructures so that lighting channels, scenes and fixture parameters can be supervised and coordinated by PLCs, SCADA or BMS platforms. Typical use cases include architectural façades, tunnels and public infrastructure, warehouses and production halls, arenas and venues, as well as smart commercial buildings where lighting must interact with sensors, schedules and safety logic implemented on Modbus devices.

DMX512 conveys up to 512 channel values per universe at a fixed line rate (250 kbit/s). By exposing DMX channels as Modbus registers or coils, the converter lets you read fixture status and write intensity or color parameters from a central controller. This approach enables energy-saving strategies (e.g., dimming based on occupancy), synchronized effects across zones, and unified alarming/diagnostics without replacing existing DMX fixtures. The housing type B with DIN-rail mounting simplifies installation in electrical cabinets alongside other automation equipment.

Commissioning is streamlined with the free configuration software, allowing you to set Modbus timing and addressing, define channel-to-register mapping, and choose scaling rules (for example, mapping DMX 0–255 to engineering units or percentages expected by Modbus slaves). You can also standardize update periods to balance responsiveness with bus load, and establish fail-safe behaviors so that fixtures fall back to predefined levels if upstream communication is interrupted.

Specifications:

• Ports: 2xRS485; 1xEthernet
• Modbus protocol: Modbus master
• DMX protocol: DMX512
• Data Rates Modbus: Up to 115200 bps
• Data Rates DMX: 250 kbps
• Modbus connector: 3way 5mm terminal block
• DMX connector: 3way 5mm terminal block
• Power supply: 8~19VAC; 8~35VDC
• Power supply connector: 2way 5mm terminal block
• Operating temperatur: -40°C to +85°C (-40°F to +185°F)
• Dimensions: 36x60x95 mm
• Weight: 200g approx
• Mechanical fixing: DIN Rail mount
• Software: SW67518
• ORDER CODE: HD67518-B2

With 2× RS485 plus an Ethernet interface available on the device, the converter can sit neatly between field lighting buses and higher-level control networks. The wide power supply range (8–19 VAC / 8–35 VDC) supports retrofit scenarios and panel standardization. Its extended operating temperature ensures dependable performance from cold storage and outdoor enclosures to warm technical rooms.

Configuration & mapping (informative):

• Assign DMX channels or ranges to Modbus registers/coils for PLC/BMS access.
• Set Modbus master parameters (baud rate up to 115200 bps, addressing, polling cadence).
• Normalize DMX 0–255 values to percentages or engineering ranges required by Modbus devices.
• Define default/fallback output levels for safe operation during comms loss.
• Document channel maps to simplify maintenance and future expansions.

Typical applications:

• Warehouses and production halls: PLC-driven dimming by occupancy and daylight sensors.
• Public spaces/transport: synchronized scenes and schedules controlled by Modbus logic.
• Commercial buildings: BMS reads fixture status and pushes global lighting setpoints.
• Venues and façades: integrate DMX effects with safety interlocks and power monitoring.

Configurator – Software SW67518 FREE DOWNLOAD

Manufacturer's warranty: 24 months

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