HD67516-A1-232 industrial Modbus Slave to Modbus TCP Master converter with dual Ethernet ports

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

The HD67516-A1-232 is a high-performance Modbus Slave to Modbus TCP Master converter designed for industrial environments where reliable communication between Modbus RTU Masters and multiple Modbus TCP Slaves is required. Equipped with two Ethernet ports, the device integrates an internal Ethernet switch, allowing daisy-chain connections with several Ethernet devices without the need for an external switch. Its compact slim-type housing (Type A) ensures easy DIN rail installation even in cabinets with limited space.

This converter is particularly suitable for applications in Industrial Automation Systems (IAS) and Building Management Systems (BMS), ensuring seamless interoperability between different devices and controllers. Thanks to triple galvanic isolation (Serial – Power Supply, Serial – Ethernet, Power Supply – Ethernet), it offers increased protection against electromagnetic disturbances and ensures stable communication in harsh industrial environments. With an extended operating temperature range from -40°C to +85°C, the HD67516-A1-232 can be reliably used in outdoor installations or areas with demanding thermal conditions.

The device supports RS232 communication up to 115200 bps and Ethernet 10/100 Base-T with autosensing, offering high flexibility for integration into both modern and legacy networks. A wide power supply range of 8…24VAC or 12…35VDC guarantees compatibility with various industrial power standards. Compact dimensions of 120 x 23 x 107 mm and weight of approximately 200 g make it an excellent choice for installations where space and weight are critical. Its configuration is intuitive and quick using the free SW67516 software.

Configuration

Using the free SW67516 software on your PC, you can:

• Define the Modbus TCP line parameters
• Configure the Modbus serial line parameters
• Update the device firmware

Features

• Triple galvanic isolation: Serial – Power Supply, Serial – Ethernet, Power Supply – Ethernet
• Integrated Ethernet switch with 2x RJ45 ports for daisy-chain connections
• Supports Ethernet 10Base-T / 100Base-T with autosensing
• Compact slim housing, suitable for DIN rail 35 mm installation

Technical Specifications

• Ports: 2x Ethernet; 1x RS232
• RS232 data rate: up to 115200 bps
• Ethernet data rate: 10/100 Base-T autosensing
• RS232 connector: 3-way 5 mm removable screw terminal
• Ethernet connector: RJ45
• Power supply connector: 2-way 5 mm 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
• Mounting: DIN rail
• Software: SW67516
• Order code: HD67516-A1-232

Software SW67516

The free SW67516 configuration software allows quick setup of communication parameters, device management, and firmware updates. Download the latest version here: FREE DOWNLOAD.