HD67G06-5-G43-E-VPN-B2 HTTP/REST Server with LTE, eSIM and VPN

HD67G06-5-G43-E-VPN-B2 connects Modbus Master RS485 devices with HTTP/REST Server communication via Ethernet, SIM LTE, eSIM and VPN service.

HD67G06-5-G43-E-VPN-B2 is an industrial ADFweb converter designed to connect devices operating as Modbus Master on the RS485 side with modern systems and applications based on HTTP/REST Server communication. This model is a practical solution wherever classic Modbus communication must be integrated with Ethernet infrastructure and secure remote access over a mobile network.

The HD67G06-5-G43-E-VPN-B2 variant offers LAN + SIM LTE + eSIM connectivity together with VPN Service, making it a strong choice for applications that require both reliable data exchange between Modbus Master RS485 devices and an HTTP/REST Server environment, and safer remote access to distributed industrial systems. It fits well in automation projects, telemetry installations, building automation systems and service applications where communication reliability matters.

The device is designed for industrial operation. It provides electrical isolation between Ethernet and power supply, 35 mm DIN rail mounting, a wide power supply range of 12..35V DC and 8..24V AC, and an operating temperature range of -40°C to +85°C. The compact housing type B makes installation easier in control cabinets, machine panels and retrofit projects.

On the mobile side, the converter uses an LTE module with support for Micro-SIM and integrated eSIM. The antenna connector is SMA Female, so the antenna must use an SMA Male connector. Combined with the RJ45 Ethernet port and 10/100 Base-T Autosensing communication, the unit can be deployed both in local Ethernet networks and in remote industrial applications requiring mobile connectivity.

For the RS485 line, the manufacturer provides 120Ω line termination activated by DIP-switch 1. The maximum RS485 cable length can reach 1200 m, which is important in larger industrial installations and distributed field networks. The Ethernet port is used both for device programming and for HTTP/REST communication.

The converter is also equipped with four status LEDs that indicate device state, Modbus communication, HTTP/REST activity and error state. In the event of firmware issues or configuration problems, the Recovery button can be used to switch the device into recovery mode and restore access for firmware update or reset operations.

Configuration is carried out using SW67G06, which allows the user to define HTTP/REST parameters, configure the Modbus line, define the list of HTTP/REST clients, configure endpoints, define Modbus variables to read and write, and update the device. This gives the integrator precise control over data mapping between the Modbus side and HTTP/REST payloads.

Product features

• industrial Modbus Master / HTTP/REST Server converter;
• Ethernet + SIM LTE + eSIM connectivity for local and remote communication;
• VPN Service support for more secure remote access;
• 1x RS485 serial port and 1x RJ45 Ethernet port;
• Modbus Master communication on the serial side;
• HTTP/REST Server communication on the Ethernet and LTE side;
• RS485 data rate up to 115200 bps;
• 10/100 Base-T Autosensing Ethernet communication;
• RS485 120Ω line termination by DIP-switch;
• maximum RS485 line length up to 1200 m;
• electrical isolation between Ethernet and power supply;
• 35 mm DIN rail mounting;
• SMA Female antenna connector and Micro-SIM support;
• 4 status LEDs and Recovery button;
• configuration and update via SW67G06.

Technical specification

• Model: HD67G06-5-G43-E-VPN-B2
• Device type: Modbus Master / HTTP/REST Server - Converter, Port RS485 with VPN
• Service: VPN Service
• Connectivity: LAN + SIM LTE + eSIM
• Ports: 1xSerial; 1xEthernet; SIM Card; eSIM
• Serial protocol: Modbus Master
• Ethernet + LTE protocol: HTTP/REST Server
• RS485 connector: 3way 5mm terminal block
• HTTP/REST connector: RJ45 + SIM + eSIM
• Data rates RS485: 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: SW67G06
• Order code: HD67G06-5-G43-E-VPN-B2

If you need a reliable way to connect Modbus Master devices on the RS485 side with HTTP/REST Server communication in industrial environments, with additional SIM LTE, eSIM and VPN support, HD67G06-5-G43-E-VPN-B2 is a strong choice for modern automation, system integration and telemetry projects.