HD67146-A1 Industrial Modbus Master to MultiSlave Converter with isolation

Industrial Modbus Master to Modbus MultiSlave Converter, housing type A (slim), DIN rail mount.

HD67146-A1 is a professional Modbus gateway designed to manage communication between multiple Modbus Masters and several Modbus Slaves simultaneously. By providing dual RS485 ports and one RS232 interface, the converter allows two independent Modbus Masters to access shared slave devices without communication conflicts. This unique architecture makes it possible to expand and stabilize existing automation infrastructures, especially in industrial environments where several supervisory systems need to access the same field devices. With its slim DIN rail housing and robust design, the HD67146-A1 ensures reliable long-term operation in demanding applications.

A key feature of the device is the galvanic isolation between Modbus ports, which guarantees safe operation even in noisy electrical environments and protects both the converter and connected equipment. The wide power supply range of 8…19VAC or 8…35VDC makes the device highly versatile and easy to integrate with existing systems. Its operating temperature range of -40°C to +85°C allows deployment in extreme industrial conditions, such as outdoor installations, energy distribution, or transportation systems. Thanks to its compact dimensions of 120 x 23 x 107 mm and lightweight design (approx. 200 g), it fits seamlessly into control panels and space-limited enclosures, ensuring efficient use of available space.

Configuration of the HD67146-A1 is simple and user-friendly with the free SW67146 software, which allows engineers to define slave parameters for each port, assign Modbus devices to Port 0 and Port 1, and configure master settings. This makes integration with PLC, SCADA, or BMS straightforward and time-efficient. The converter supports data rates up to 115200 bps on both RS232 and RS485 interfaces, ensuring fast and stable communication. Its design is particularly valuable in applications where multiple systems need real-time access to the same data, for example in energy monitoring, smart building automation, or complex industrial production lines. With 24 months manufacturer’s warranty, the HD67146-A1 is a secure choice for long-term industrial integration.

Configuration

Thanks to the SW67146 software on your PC you can:

• Define the parameters of the Modbus Slave (Port 0, Port 1)
• Define the Modbus Slave devices accessible from Port 0 and Port 1
• Define the parameters of the Modbus Master

Characteristics

• Galvanic isolation between the two Modbus ports
• 35mm DIN rail mount
• Accessible Modbus Slave devices from Port 0 and Port 1

Specifications

• Ports: 1x RS232; 2x RS485
• Data Rates RS232: Up to 115200 bit/s
• Data Rates RS485: Up to 115200 bit/s
• RS232 connector: D-SUB9
• RS485 connector: 5mm terminal block
• Power supply connector: Terminal Block
• Power supply: 8…19VAC; 8…35VDC
• Operating temperature: -40°C to +85°C (-40°F to +185°F)
• Dimensions: 120 mm x 23 mm x 107 mm (DxWxH)
• Weight: approx. 200 g
• Mechanical fixing: 35mm DIN Rail mount
• Software: SW67146
• ORDER CODE: HD67146-A1

Software SW67146

The SW67146 configurator allows quick and intuitive setup of the device. Engineers can define master and slave parameters, manage multi-port access, and update the converter’s firmware. The software is available for free download: FREE DOWNLOAD.

Manufacturer's warranty: 24 months