HD67931-B2-868MHz-80 Industrial M-Bus Wireless to MQTT Converter for 80 Wired and 32 Wireless Slaves

HD67931-B2-868MHz-80 Industrial MBus Wireless to MQTT converter, master MBus up to 80 slaves and up to 32 MBus Wireless slaves, housing type B (wide), DIN rail mount.

The HD67931-B2-868MHz-80 is a high-performance industrial gateway designed to integrate MBus networks with MQTT-based IoT platforms. It supports up to 80 wired MBus slaves and up to 32 wireless MBus devices operating at 868 MHz, making it suitable for large-scale energy monitoring and smart metering projects. With its robust design and -40°C to +85°C operating range, it ensures reliable data transmission even in harsh industrial or outdoor environments.

This converter allows seamless data publishing from meters such as Siemens, Kamstrup, Maddalena, Sontex and others directly to an MQTT Server. Thanks to support for TLS/SSL encryption, communication is protected against unauthorized access, meeting modern cybersecurity standards for critical infrastructure. The device’s electrical isolation between Ethernet and MBus further enhances system safety and prevents interference in complex installations.

Configuration is simplified using the free SW67931 software, which provides intuitive parameter setup for MQTT, MBus and MBus Wireless lines. This flexibility enables integrators to tailor data points, update firmware, and adjust communication parameters according to project needs. Thanks to its DIN rail mount housing (type B, wide), the converter can be easily integrated into existing cabinets alongside PLCs, energy monitoring devices, or SCADA systems.

Configuration:

Thanks to the SW67931 software on your PC you can:

• Define the parameters of MQTT line
• Define the parameters of MBus line
• Define the parameters of MBus Wireless line
• Define which MBus variables are sent to MQTT Server
• Update the device

Characteristics:

• Electrical isolation between Ethernet and MBus
• DIN rail mountable on standard 35mm
• Wide power supply input range: 18...35V DC
• Robust design for industrial and outdoor use

Specifications:

• Ports: 1x Ethernet, 1x MBus Wireless, 1x MBus
• Ethernet protocol: MQTT
• MBus Wireless protocol: MBus Wireless, S1&T1 communication
• MBus protocol: MBus Master
• MQTT connector: RJ45
• MBus Wireless connector: SMA Female Antenna
• MBus connector: 2-way 5mm terminal block
• MBus Wireless frequency: 868 MHz (long-range, interference-resistant)
• Data Rates MQTT: 10/100 Base-T with autosensing
• Data Rates MBus: up to 38400 bit/s
• Power supply: 18...35V DC
• Maximum startup consumption: 30W
• Power supply connector: 2-way 5mm terminal block
• Operating temperature: -40°C to +85°C (-40°F to +185°F)
• Dimensions: 71 mm x 60 mm x 95 mm (DxWxH)
• Weight: ~200g
• Mechanical fixing: DIN Rail mount
• Software: SW67931
• ORDER CODE: HD67931-B2-868MHz-80

Configurator – Software SW67931 FREE DOWNLOAD

Manufacturer's warranty: 24 months

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