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1. Overview

The Fronius Datalogger & Interface Monitor is a communication and data acquisition device designed to collect, store and transmit photovoltaic system performance data via network interfaces (Ethernet/serial). It enables both local access and remote monitoring of system performance and diagnostics.

2. Powering the Device

• Connect the device to a 12 V DC power supply capable of at least 250 mA output.

• Ensure the correct polarity (+/–) and a stable supply — loss of voltage may interrupt data logging.

3. Device Connections

Ethernet

• Use a standard LAN cable to connect the device’s Ethernet port to a network switch or router.

• This allows access via local web interface or integration with software such as Fronius DATCOM.

RS232 / Serial (if available)

• Some models include an RS232 or modem port for legacy communication with compatible components.

4. Network Configuration

• After powering up and connecting to LAN, the device will obtain an IP address.

• Access the built-in web interface via a web browser using the device’s IP address.

• Through the web interface you can view status, configure settings and update firmware.

5. Monitoring & Data Access

Within the user interface you can typically:
✔ View real‑time PV system performance data.
✔ Monitor historical performance logs.
✔ Diagnose communication or performance faults.
✔ Configure alarm thresholds and relay outputs.

6. Firmware & Software Updates

• Firmware updates can be performed via the web interface (LAN).

• When updating, ensure the device remains powered and network connected.

• Do not interrupt the update process.

7. Safety & Protection

• The device is designed for indoor use (IP20); protect it from moisture and dust.

• Operate within rated voltage and temperature specifications.

• Avoid exposing connectors to static or incorrect wiring.

8. Typical Troubleshooting

No Network Access
✔ Check Ethernet cable and switch/router connection.
✔ Verify that the device has a valid IP address.

No Data Display
✔ Ensure the datalogger is connected to the inverter or monitoring interface correctly.
✔ Verify that the inverter supports external logging.

Power Indication
✔ Confirm correct 12 V DC supply at 250 mA minimum.
✔ Replace power supply if the device fails to boot.