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

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

HD67G07-2-G43-B2 is an industrial ADFweb converter designed to connect devices operating as Modbus Slave on the RS232 side with systems and applications based on HTTP/REST Client communication. This model is a practical solution wherever classic serial communication must be integrated with modern Ethernet infrastructure and remote mobile connectivity.

The HD67G07-2-G43-B2 variant offers LAN + SIM LTE connectivity, allowing it to work both in local industrial networks and in distributed applications where mobile access is required. It is a practical choice for automation integrators, telemetry projects, building automation systems and service environments that need stable communication between Modbus Slave RS232 devices and an HTTP/REST Client environment.

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 easier inside control cabinets, while the power consumption of approximately 5 W/VA at 24V DC supports straightforward panel power planning.

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, making the unit suitable for applications without fixed wired infrastructure.

Ethernet communication works at 10/100 Base-T Autosensing, while the RS232 side supports transmission speeds up to 115200 bps. The manufacturer recommends using a Null Modem cable for RS232 communication, with a suggested cable length not exceeding 15 meters. These parameters make the device suitable for many industrial and service applications.

The converter 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. This is especially useful in industrial installations where quick service recovery is important.

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.

Product features

• industrial Modbus Slave / HTTP/REST Client converter;
• Ethernet + SIM LTE connectivity for local and remote communication;
• 1x RS232 serial port and 1x RJ45 Ethernet port;
• Modbus Slave communication on the serial side;
• HTTP/REST Client 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-B2
• Device type: Modbus Slave / HTTP/REST Client - Converter, Port RS232
• 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: 71x60x95 mm
• Housing: PVC
• Weight: 200 g approx
• Mechanical fixing: 35 mm DIN rail mounting
• Software: SW67G07
• Order code: HD67G07-2-G43-B2

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