Industrial M-Bus data logger and web server for up to 250 meters with touchscreen and data export – WebLog250

WebLog250 – industrial M-Bus data logger with integrated web server and touchscreen.

WebLog250 is a high-performance M-Bus data logger and central unit designed for professional metering installations. The device can directly supply and read up to 250 M-Bus meters and manage up to 1000 meters when external repeaters are used. It combines local operation via a 7″ color touchscreen with remote access through a standard web browser.

Key product features

• M-Bus data logger for up to 250 meters (250 unit loads)
• Integrated web server for remote access via web browser
• 7″ LED touchscreen (800 × 480 px) for local operation
• Internal database for structured storage of metering data
• Automatic data export in CSV, XLSX and XML formats
• Data transfer via e-mail, FTP server or USB memory stick
• Extensive user management with administrator, inspector and tenant roles
• Optional internal WiFi module with external antenna

Web-based operation and user management

WebLog250 can be operated either directly via the integrated touchscreen or remotely using a web browser over Ethernet or optional WiFi. The system supports hierarchical access control, allowing administrators to define users, inspectors and tenants with different permissions for meter access and data export.

Data logging, export and integration

Logged M-Bus data are stored in an internal SQLite database and can be exported manually or automatically at scheduled intervals. WebLog250 supports time-controlled exports in CSV, XLSX and XML formats, enabling seamless integration with billing systems, energy management platforms and BMS solutions.

Communication interfaces and expansion options

The device provides a comprehensive set of interfaces: 10/100 Mbps Ethernet, USB Host, USB Device and RS232. In addition to its data logger functionality, WebLog250 can also be used as a transparent M-Bus level converter via USB or RS232. Optional WiFi connectivity further increases installation flexibility.

Industrial design and mounting

WebLog250 features a robust ABS enclosure with IP52 protection and a separate terminal compartment for safe wiring. The device is designed for wall mounting or DIN rail installation (TS35) using an optional mounting kit and includes an integrated wide-range power supply (110–250 VAC) for global deployment.

WebLog250 is a powerful and flexible M-Bus data logger and web-enabled central unit for large metering installations. It combines local touchscreen operation, remote web access, advanced data logging and automated export functions in a single industrial device.

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