HD67522-422-A1 Industrial Modbus TCP to Modbus ASCII RS422 DIN Rail Converter

Industrial Modbus TCP to Modbus ASCII converter, housing type A (slim), DIN rail mount.

HD67522-422-A1 is a Modbus TCP / Modbus ASCII Converter and it allows you to connect a Modbus TCP network with a Modbus ASCII network in order to exchange the informations between the networks. This version, equipped with an RS422 interface, is especially suitable for long-distance and noise-sensitive applications, where RS232 might not be reliable. The device ensures transparent communication between modern Ethernet infrastructures and legacy ASCII-based devices, offering a practical solution in industrial environments requiring interoperability. Converter is easy to configure thanks to free SW67522 software, making the commissioning process straightforward even in complex systems.

Specifications:

• Ports: 1x Ethernet; 1x RS422
• Data Rates Modbus ASCII: Up to 115200 bps
• Data Rates Modbus TCP: 10/100 Base-T Autosensing
• Modbus ASCII connector: D-SUB 9 Male
• Modbus TCP Connector: RJ45
• Power Supply: 8...19VAC; 8...35VDC
• Operating temperature: -40°C/+85°C (-40°F/+185°F)
• Dimensions: 120 mm x 23 mm x 107 mm (LxWxH)
• Weight: 200g approx
• Mechanical fixing: DIN Rail mount
• SOFTWARE: SW67522
• ORDER CODE: HD67522-422-A1

The RS422 port offers superior noise immunity compared to RS232, and supports longer communication distances, which makes the converter particularly useful in factories with extended cabling or electrically noisy environments. Together with the Ethernet port, it allows bridging old ASCII-based controllers to modern supervisory systems with minimal effort. The wide AC/DC supply range ensures flexibility, while the DIN rail design simplifies installation in new or existing panels.

Configurator – Software SW67522 FREE DOWNLOAD

The HD67522-422-A1 is widely adopted in industrial automation, energy management, and building systems where devices using Modbus ASCII over RS422 need to coexist with Ethernet-based Modbus TCP networks. Typical applications include long-distance data acquisition, integration of distributed energy meters, HVAC equipment, or legacy controllers that cannot be easily replaced. With its -40°C to +85°C operating range, the device performs reliably in both indoor and outdoor cabinets. Engineers value its simple setup, robust communication over RS422, and continuous 24/7 operation, which reduce downtime and integration costs.

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