HD67508-A1-232 Industrial Modbus TCP Slave to Master Converter with Dual Ethernet Ports

Industrial Modbus TCP Slave to Modbus Master converter with two Ethernet ports, housing type A (slim), DIN rail mount.

HD67508-A1-232 is an industrial Modbus TCP Slave to Modbus Master converter designed for seamless communication between Modbus RTU serial devices and Modbus TCP networks. It allows one or multiple Modbus RTU Slaves to be connected to a Modbus TCP Master via Ethernet, ensuring efficient data exchange across automation systems. With two integrated LAN ports, the device functions as a built-in Ethernet switch, enabling series connection of multiple devices without requiring external networking equipment. The compact housing type A and DIN rail mounting make it suitable for installation in industrial panels with limited space.

This converter is particularly useful in Industrial Automation Systems (IAS) and Building Management Systems (BMS), where robust and reliable communication between field devices and supervisory systems is essential. It is equipped with triple galvanic isolation between RS232/RS485, Power Supply, and Ethernet, which guarantees protection against voltage surges, ground loops, and electromagnetic interference. Operating reliably in extreme environments, the HD67508-A1-232 supports a wide temperature range from -40°C to +85°C, making it ideal for energy monitoring, HVAC systems, and smart infrastructure projects. Its low power requirements (8…24VAC / 12…35VDC) and 200 g lightweight construction ensure energy-efficient operation and easy integration.

Configuration is straightforward thanks to the free SW67508 software, which provides a user-friendly interface to define Modbus TCP parameters, configure the serial Modbus line, and perform firmware updates. Communication speeds reach up to 115200 bps on RS232 and 10/100 Base-T autosensing on Ethernet, ensuring fast and stable data transfer. The converter’s compact dimensions (120 x 23 x 107 mm) allow installation in dense control cabinets, while the rugged design makes it suitable for long-term deployment in industrial environments. By combining secure communication, high flexibility, and ease of installation, the HD67508-A1-232 is a reliable gateway for advanced Modbus integration projects.

Configuration

Thanks to the SW67508 software on your PC you can:

• Define the parameters of Modbus TCP line
• Define the parameters of Modbus Serial line
• Update the device

Characteristics

• Triple isolation between RS232/RS485 - Power Supply, RS232/RS485 - Ethernet, Power Supply - Ethernet
• Internal Ethernet switch with dual LAN ports
• Ethernet 10Base-T / 100Base-T with autosensing for Modbus TCP
• DIN rail 35 mm mounting

Specifications

• Ports: 2x Ethernet; 1x RS232
• Data Rates RS232: Up to 115200 bps
• Data Rates Ethernet: 10/100 Base-T Autosensing
• RS232 connector: 3-way 5mm removable screw terminal
• Ethernet Connector: RJ45
• Power Supply Connector: 2-way 5mm removable screw terminal
• Power Supply: 8...24VAC; 12...35VDC
• Operating temperature: -40°C to +85°C (-40°F to +185°F)
• Dimensions: 120 mm x 23 mm x 107 mm (LxWxH)
• Weight: approx. 200 g
• Mechanical fixing: DIN Rail mount
• Software: SW67508
• ORDER CODE: HD67508-A1-232

Software SW67508

The SW67508 software is a free configuration tool that simplifies setup and maintenance of the converter. With its intuitive interface, users can define Modbus parameters, update device firmware, and monitor communication performance. Download the latest version here: FREE DOWNLOAD.