HD67508-A1-422 Industrial Modbus TCP Slave to Modbus 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.

The HD67508-A1-422 is a professional Modbus TCP Slave to Modbus Master converter designed to ensure seamless integration between serial Modbus RTU devices and Ethernet-based Modbus TCP systems. Equipped with two Ethernet LAN ports, the device provides an integrated switch functionality, allowing multiple devices to be connected in series without the need for an external switch. This makes it an ideal choice for applications in Industrial Automation Systems (IAS) and Building Management Systems (BMS), where reliability and flexibility are crucial. Its slim housing type A is optimized for DIN rail installations in compact control panels, while the extended operating temperature range of -40°C to +85°C guarantees stable performance in harsh environments. Thanks to its robust design and advanced electrical isolation, this gateway ensures safe data exchange and long-term reliability, even in facilities exposed to electrical noise and industrial interference.

The converter supports triple galvanic isolation between RS422, power supply, and Ethernet interfaces, protecting both the field devices and the communication network. This feature is especially important in large-scale systems where electromagnetic disturbances may cause communication failures. By enabling straightforward integration of legacy Modbus RTU Slaves into modern TCP/IP networks, the HD67508-A1-422 reduces deployment time, minimizes wiring costs, and simplifies maintenance. The device is supplied with free SW67508 configuration software, allowing users to quickly define parameters, monitor communication, and update the firmware when necessary. This combination of compact dimensions, advanced safety features, and user-friendly configuration makes it a highly versatile solution for integrators, system engineers, and industrial maintenance teams.

Configuration

With the free SW67508 software, configuring the gateway is fast and intuitive. The tool provides a simple graphical interface where users can set communication parameters for both the Modbus TCP and RS422 serial line. It also includes options for real-time monitoring and diagnostic checks, which help engineers troubleshoot networks more effectively. The configuration software makes it possible to adapt the device to different installation requirements, including baud rates, addressing schemes, and data handling rules. In addition, the built-in firmware update functionality ensures that the converter can be easily upgraded with new features or security patches. This makes the HD67508-A1-422 not only a robust but also a future-proof solution for industrial and building automation.

• Define the parameters of Modbus TCP line
• Define the parameters of Modbus Serial line
• Monitor communication in real time
• Update the device firmware

Features

The converter comes with several built-in features that enhance its performance and reliability. One of the most significant is its triple isolation system, which safeguards communication integrity even in environments affected by electrical noise or ground loops. The internal Ethernet switch with two ports simplifies network wiring by enabling daisy-chain connections, reducing the number of additional devices needed. Support for 10Base-T / 100Base-T Ethernet with autosensing ensures compatibility with a wide range of industrial controllers, PLCs, and SCADA systems. The device is designed for DIN rail mounting (35 mm), making installation straightforward in control cabinets. Compact size and lightweight construction allow it to fit easily into systems with space limitations, while the robust enclosure guarantees long service life.

• Triple isolation between RS422 – Power Supply, RS422 – Ethernet, Power Supply – Ethernet
• Integrated two-port Ethernet switch
• 10/100 Base-T Ethernet with autosensing for Modbus TCP
• Compact housing type A for 35 mm DIN rail installation
• Extended operating temperature range for industrial use

Technical Specifications

• Ports: 2x Ethernet; 1x RS422
• Data Rates RS422: Up to 115200 bps
• Data Rates Ethernet: 10/100 Base-T Autosensing
• RS422 connector: 3way 5mm removable screw terminal
• Ethernet Connector: RJ45
• Power Supply Connector: 2way 5mm removable screw terminal
• Power Supply: 8...24VAC; 12...35VDC
• Operating temperature: -40°C/+85°C (-40°F/+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-A1-422

Configurator – Software SW67508

The SW67508 configuration software is provided free of charge and is essential for setting up and maintaining the HD67508-A1-422. Its user-friendly interface simplifies complex configuration tasks, while built-in monitoring tools allow for precise diagnostics of communication flows. Engineers can use the tool to update firmware, adapt communication settings, and ensure that the converter always operates with maximum efficiency. By offering both flexibility and long-term support, the software guarantees that the device will remain compatible with evolving industrial standards. The latest version of the software can be downloaded here: FREE DOWNLOAD.