HD67931-B2-868MHz-160 Industrial M-Bus Wireless to MQTT converter for 160 wired and 32 wireless devices

HD67931-B2-868MHz-160 – Industrial M-Bus Wireless to MQTT converter, master MBus up to 160 slaves, up to 32 MBus wireless slaves, housing type B (wide), DIN rail mount.

The HD67931-B2-868MHz-160 is an advanced communication gateway designed to integrate M-Bus wired and wireless networks with modern MQTT-based IoT platforms. It supports up to 160 wired M-Bus slaves and 32 wireless devices operating at 868 MHz, making it suitable for large-scale industrial and utility applications. With this converter, energy meters, heat meters, and water meters can easily be connected to cloud platforms, supervisory control systems, or building automation networks. The unit provides a seamless bridge between legacy M-Bus infrastructures and new-generation IoT systems. Thanks to its support for TLS/SSL encryption, data transfer is secured against unauthorized access and interception. The DIN rail mount housing type B ensures reliable and stable installation in industrial panels. By combining wired and wireless communication in one device, it reduces the need for additional hardware and simplifies network architecture in smart buildings and smart grid projects.

The converter is compatible with a wide range of M-Bus meters from SIEMENS, Kamstrup, Maddalena, Sontex, and many others. Data collected from these meters is automatically transmitted to an MQTT Server, where it can be stored, processed, or visualized in real time. The configuration process is simplified through the free SW67931 software, which allows the user to set MQTT parameters, define the wired M-Bus line, and configure the M-Bus Wireless line. Flexible power supply support of 18…35 VDC ensures easy integration in existing control cabinets and automation systems. The device features galvanic isolation between Ethernet and the M-Bus line, providing enhanced reliability and protecting against disturbances. With its RJ45 Ethernet port, SMA antenna connector, and 2-way 5 mm screw terminal for the M-Bus line, it guarantees both flexibility and robustness in professional installations. Typical applications include energy monitoring, utility data collection, and centralized billing systems.

With an extended operating temperature range from -40°C to +85°C, the HD67931-B2-868MHz-160 can be deployed in both indoor and outdoor environments, including harsh industrial conditions. Compact dimensions of 71 x 60 x 95 mm and a weight of only 200 g make it easy to install even in space-limited electrical enclosures. Its peak power consumption during start-up is 30 W, ensuring stability and conformity with industrial standards. The MQTT interface supports multiple Quality of Service levels and hierarchical topics, making it adaptable to various IoT applications. System integrators can also benefit from firmware update capabilities via the SW67931 tool, ensuring long-term compatibility with evolving communication protocols. Thanks to its robust design, the device is ideal for use in energy distribution systems, district heating networks, water management, and smart city infrastructure. The manufacturer provides a 24-month warranty, underlining the product’s durability and reliability for mission-critical applications.

HD67931-B2-868MHz-160 allows to publish the data read from MBus meters into a MQTT Server. These gateways allow a fast and easy access to the IoT world and they are compatible with IoT Servers that support MQTT protocol. The MQTT communication can be encrypted using TLS / SSL protocols, ensuring a secure communication.

They allow to monitor MBus meters (like SIEMENS, Kamstrup, Maddalena, Sontex, etc.). Converter is easy to configure thanks to free SW67931 software.

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
• Mountable on 35mm Rail DIN
• Wide power supply input range: 18...35V DC

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: 2way 5mm terminal block
• MBus Wireless frequency: 868 MHz
• Data Rates MQTT: 10/100 Base-T with autosensing
• Data Rates MBus: Up to 38400 bit/s
• Power supply: 18...35V DC
• Power supply connector: 2way 5mm terminal block
• Operating temperature: -40°C/+85°C (-40°F/+185°F)
• Maximum power consumption at converter start-up: 30W
• Dimensions: 71 mm x 60 mm x 95 mm (DxWxH)
• Weight: 200g approx
• Mechanical fixing: DIN Rail mount
• Software: SW67931
• ORDER CODE: HD67931-B2-868MHz-160

Configurator – Software SW67931 FREE DOWNLOAD

Manufacturer's warranty: 24 months

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