HD67E01-2-A1 EtherCAT Slave to Modbus RTU Master RS232 – industrial protocol converter

Industrial EtherCAT Slave to Modbus RTU Master RS232 converter.

HD67E01-2-A1 is an industrial protocol converter designed to integrate EtherCAT Slave networks with devices communicating using Modbus RTU Master over RS232. The device enables direct and deterministic data exchange between real-time EtherCAT systems and classic Modbus RTU field devices.

The converter operates as an EtherCAT Slave node, providing process data directly to the PLC, while simultaneously acting as a Modbus RTU Master on the RS232 serial interface. This allows reading and writing Modbus registers without modifying the existing automation system architecture.

The HD67E01-2-A1 model is equipped with two RJ45 Ethernet ports dedicated to EtherCAT communication, featuring an internal switch that enables EtherCAT input and output connection within a single line. The Modbus RTU interface is implemented via a 3-pin 5 mm RS232 terminal block.

Thanks to triple galvanic isolation between EtherCAT, Modbus, and power supply, the converter offers high resistance to electromagnetic interference, potential differences, and voltage transients, making it suitable for demanding industrial environments.

Device configuration is performed using the dedicated SW67E01 software. This tool enables full data mapping between EtherCAT and Modbus RTU, definition of communication parameters and polling times, as well as generation of the ESI file required for EtherCAT Master configuration.

Product features

• EtherCAT Slave with real-time process data handling
• Modbus RTU Master over RS232 interface
• Triple galvanic isolation between EtherCAT, Modbus and power supply
• Two RJ45 Ethernet ports with integrated EtherCAT switch
• DIN rail mounting (35 mm)
• Wide operating temperature range from -40°C to +85°C
• Wide AC and DC power supply range

Technical specification

• Model: HD67E01-2-A1
• Function: EtherCAT Slave / Modbus RTU Master
• Modbus interface: RS232
• EtherCAT protocol: EtherCAT Slave
• Modbus RTU data rate: up to 115200 bps
• EtherCAT data rate: auto-sensing 10/100 Base-T
• Modbus connector: 3-pin 5 mm terminal block
• EtherCAT connector: RJ45
• Power supply: 8..24 V AC or 12..35 V DC
• Power supply connector: 2-pin 5 mm terminal block
• Operating temperature: -40°C to +85°C
• Dimensions: 120 x 23 x 107 mm
• Weight: approx. 200 g
• Mounting: DIN rail

HD67E01-2-A1 is a versatile solution for integrating EtherCAT controllers with Modbus RTU RS232 devices in industrial applications requiring high determinism, reliability, and environmental resistance. With triple isolation, a wide operating temperature range, and flexible configuration, this converter is well suited for machine control systems, production lines, and automation retrofit projects.

If you have questions regarding device selection, configuration, or testing, contact the Consteel Electronics team .