HD67G07-2-G43-VPN-B2 Modbus Slave to HTTP/REST converter with LTE and VPN

HD67G07-2-G43-VPN-B2 connects Modbus Slave RS232 devices with HTTP/REST communication via Ethernet, SIM LTE and VPN service.

HD67G07-2-G43-VPN-B2 is an industrial ADFweb converter designed to integrate devices operating as Modbus Slave on the RS232 side with systems and applications using HTTP/REST communication. This model is a practical solution wherever classic serial communication must be connected with Ethernet infrastructure and secure remote access over a mobile network.

The HD67G07-2-G43-VPN-B2 variant offers LAN + SIM LTE connectivity together with VPN Service, making it suitable for both local industrial networks and distributed applications where remote communication is required. It is a practical choice for automation integrators, telemetry systems, building automation installations and service environments that need stable communication between Modbus Slave RS232 devices and an HTTP/REST environment. :contentReference[oaicite:1]{index=1}

The device is designed for industrial operation. It provides electrical isolation between Ethernet and power supply, mounting on a 35 mm DIN rail, a wide power supply range of 12..35V DC / 8..24V AC and an operating temperature range of -40°C to +85°C. The compact housing type B makes installation easy inside control cabinets, while the power consumption of approximately 5 W/VA at 24V DC supports straightforward panel power planning. :contentReference[oaicite:2]{index=2}

On the hardware side, the converter is equipped with 1 RS232 port with a 3-way 5 mm terminal block, 1 RJ45 Ethernet port and a SIM slot for LTE connectivity. For the G43 version, the manual specifies an LTE module, an SMA Female antenna connector and Micro-SIM card support. Ethernet communication works at 10/100 Base-T Autosensing, while the RS232 side supports transmission speeds up to 115200 bps. :contentReference[oaicite:3]{index=3}

The manufacturer recommends using a Null Modem cable for RS232 communication, with a suggested cable length not exceeding 15 meters. The converter also includes four status LEDs indicating device state, Modbus communication, HTTP/REST activity and error state. In addition, the unit is equipped with a Recovery button that allows the device to be switched into recovery mode in case of firmware or configuration issues. :contentReference[oaicite:4]{index=4}

Configuration is carried out using SW67G07, which allows the user to define HTTP/REST parameters, configure the Modbus line, define the list of HTTP/REST servers communicating with Modbus masters, configure endpoints and update the device. This gives the integrator flexibility to adapt the converter to a specific industrial application. :contentReference[oaicite:5]{index=5}

Product features

• industrial Modbus Slave / HTTP/REST converter;
• Ethernet + SIM LTE connectivity for local and remote communication;
• VPN Service support for more secure remote access;
• 1x RS232 serial port and 1x RJ45 Ethernet port;
• Modbus Slave communication on the serial side;
• HTTP/REST communication on the Ethernet and LTE side;
• RS232 data rate up to 115200 bps;
• 10/100 Base-T Autosensing Ethernet communication;
• electrical isolation between Ethernet and power supply;
• SMA Female antenna connector and Micro-SIM support;
• 35 mm DIN rail mounting;
• 4 status LEDs and Recovery button;
• configuration and update via SW67G07.

Technical specification

• Model: HD67G07-2-G43-VPN-B2
• Device type: Modbus Slave / HTTP/REST Client - Converter, Port RS232, with VPN
• Service: VPN Service
• Connectivity: LAN + SIM LTE
• Ports: 1xSerial; 1xEthernet; SIM Card
• Serial protocol: Modbus Slave
• Ethernet + LTE protocol: HTTP/REST Client
• RS232 connector: 3way 5mm terminal block
• HTTP/REST connector: RJ45 + SIM
• Data rates RS232: up to 115200 bps
• Data rates HTTP/REST: 10/100 Base-T Autosensing
• Power supply: 12..35V DC / 8..24V AC
• Power consumption: 5 W/VA at 24V DC
• Power supply connector: 2way 5mm terminal block
• Operating temperature: -40°C to +85°C
• Dimensions: 70x60x95 mm (DxWxH)
• Weight: 200 g approx
• Mechanical fixing: 35 mm DIN rail mounting
• Software: SW67G07
• Order code: HD67G07-2-G43-VPN-B2

If you need a reliable way to connect Modbus Slave devices on the RS232 side with HTTP/REST communication in industrial environments, with additional SIM LTE connectivity and VPN support, HD67G07-2-G43-VPN-B2 is a strong choice for modern automation, system integration and telemetry projects.