HD67C07-G43-E-B2 – Modbus TCP Slave / MQTT Broker Converter with LAN, LTE SIM and eSIM

HD67C07-G43-E-B2 – Modbus TCP Slave / MQTT Broker Converter with LAN, LTE SIM and eSIM.

HD67C07-G43-E-B2 is an industrial communication gateway designed to connect Modbus TCP Slave devices with modern MQTT Broker infrastructures. This enhanced version features both LTE SIM and embedded eSIM, providing redundant, flexible and reliable data transmission for distributed automation systems, IoT platforms and cloud-based monitoring. Its compact DIN-rail housing and extended operating temperature range make it ideal for demanding industrial environments.

With support for Ethernet LAN, LTE SIM and eSIM, the HD67C07-G43-E-B2 offers multiple communication paths, ensuring continuity of service in remote areas and critical infrastructure. The integrated MQTT Broker enables efficient, secure data exchange between field devices and supervisory systems, dashboards or cloud services. Configuration is performed via the SW67C07 software, allowing precise control over topics, payloads, mappings and MQTT client settings.

Key Features of the HD67C07-G43-E-B2

• Modbus TCP Slave – provides accessible data for IoT, SCADA and cloud systems.
• Integrated MQTT Broker – publish/subscribe messaging, topic mapping and data routing.
• Triple communication mode: LAN, LTE SIM and embedded eSIM.
• Supports MQTT 3.1, 3.1.1 and 5.0 with full topic and JSON message customization.
• Status LEDs for device operation, Modbus TCP communication, MQTT activity and error diagnostics.
• Electrical isolation between the Ethernet and power circuits for high reliability.
• Wide operating temperature range: −40°C to +85°C.
• Rugged industrial housing – Modulbox type B, DIN-rail mounted.
• Full configuration through SW67C07 software.

How the HD67C07-G43-E-B2 Works

The gateway functions as a Modbus TCP Slave, storing internal data that can be accessed by supervisory or automation systems. The built-in MQTT Broker publishes variables as topics and receives subscribed values, allowing cloud services or IoT controllers to write data back into Modbus registers. This two-way communication enables real-time synchronization between field devices and upper-level systems.

Thanks to advanced MQTT features such as QoS levels, retained messages, bridge connections and JSON payload templates, the HD67C07-G43-E-B2 is suitable for complex IoT architectures, predictive maintenance, environmental monitoring, industrial telemetry and BMS/HVAC automation.

Ports and Connectivity

• 1× Ethernet RJ45 – 10/100 Base-T autosensing.
• LTE SIM slot for mobile communication.
• Embedded eSIM for secure and redundant connectivity.
• 2-pin power connector: 8…24 V AC / 12…35 V DC.
• SMA connector for LTE antenna.

Technical Specifications

• Modbus TCP Slave: 10/100 Base-T autosensing
• MQTT Broker: 10/100 Base-T autosensing
• Operating temperature: −40°C to +85°C
• Dimensions: 70 × 60 × 95 mm
• Weight: approx. 200 g
• Mounting: DIN-rail (35 mm)
• Software: SW67C07 – Download
• Order Code: HD67C07-G43-E-B2

Applications

• IoT and cloud integration with Modbus TCP data.
• Remote industrial monitoring using LTE SIM/eSIM.
• SCADA, BMS and HVAC automation platforms.
• Distributed energy and environmental monitoring systems.
• Infrastructure, water networks and smart buildings.
• Predictive maintenance and telemetry applications.