HD67931-B2 Industrial MBus to MQTT Converter for up to 80 Slaves with TLS/SSL Encryption

Industrial MBus to MQTT converter, master MBus up to 80 slaves, housing type B (wide), DIN rail mount. 

HD67931-B2 allows to publish the data read from MBus meters into an MQTT Server. These gateways enable fast and reliable integration between traditional MBus-based metering systems and modern IoT infrastructures. They are compatible with IoT Servers that support the MQTT protocol, making them ideal for smart building automation, energy monitoring, and industrial IoT deployments.

The MQTT communication can be encrypted using TLS / SSL protocols, ensuring a secure communication channel that meets modern cybersecurity standards. This feature is essential for applications where sensitive consumption data is transmitted over public or corporate networks. With support for up to 80 MBus slave devices, the HD67931-B2 is well-suited for both medium and large-scale installations, such as district heating systems, smart city infrastructure, and industrial utility monitoring.

They allow to monitor MBus meters (such as SIEMENS, Kamstrup, Maddalena, Sontex and many others), providing real-time data acquisition for applications like consumption reporting, preventive maintenance, and energy efficiency optimization. The converter is easy to configure thanks to the free SW67931 software, which offers an intuitive interface for quick setup and parameter adjustments. Installation on a 35mm DIN rail ensures quick integration into standard industrial control panels.

Configuration:

Thanks to the SW67931 software on your PC you can:

• Define the parameters of the MQTT line, including broker address, port, and authentication.
• Define the parameters of the MBus line for optimal performance with various types of meters.
• Define the parameters of the MBus Wireless line for installations requiring remote meter communication.
• Define which specific MBus variables are sent to the MQTT Server, allowing selective data transmission to reduce network load.
• Update the device firmware to ensure compatibility with the latest security standards and features.

This configuration flexibility makes the HD67931-B2 suitable for both static and dynamic IoT environments.

Characteristics:

• Electrical isolation between Ethernet and MBus for enhanced safety and protection against surges.
• Mountable on 35mm DIN Rail for standardized industrial installation.
• Wide power supply input range: 18...35V DC and 15...21V AC for flexibility in various environments.

These characteristics ensure reliable operation even in challenging industrial conditions, including extended temperature ranges and electrical noise environments.

Specifications:

• Ports: 1x Ethernet, 1x MBus
• Ethernet protocol: MQTT
• Ethernet connector: RJ45
• MBus protocol: MBus master
• MBus connector: 2-way 5mm fixed screw terminal
• Data Rates MBus: Up to 38400 bps
• Data Rates MQTT: 10/100 Base-T with autosensing
• Power supply: 15...21V AC; 18...35V DC
• Power supply connector: 2-way 5mm terminal block
• Operating temperature: -40°C / +70°C (-40°F / +185°F)
• Dimensions: 71 mm x 60 mm x 95 mm (DxWxH)
• Weight: approx. 200g
• Maximum power consumption at converter start-up: 30W
• Mechanical fixing: DIN Rail mount
• Software: SW67931
• ORDER CODE: HD67931-B2-80

Configurator – Software SW67931 FREE DOWNLOAD

Manufacturer's warranty: 24 months

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