P1MB for SOLIS: Faster Installation, More Accurate Energy Measurements

By reading energy data directly from the smart meter’s P1 interface instead of using current transformer (CT) clamps, the P1MB significantly simplifies installation while improving measurement reliability and reducing the likelihood of installation errors.

Eliminate Installation Errors and Reduce Service Visits

Incorrectly installed CT clamps remain one of the most common causes of inaccurate energy measurements in photovoltaic installations. A reversed CT clamp, incorrect phase assignment, or poor electrical contact can lead to incorrect import and export readings, reduced system performance, and unnecessary troubleshooting.

These installation errors often result in additional support requests and costly return visits for installers.

The new P1MB eliminates these risks by replacing CT clamps entirely. Instead of measuring current through external sensors, the module retrieves verified consumption and production data directly from the smart meter via the P1 port. This data is then converted into Modbus RTU, allowing seamless communication with SOLIS S5 and S6 inverters.

The result is a more reliable measurement solution that minimizes installation mistakes while ensuring consistent and accurate energy data.

Faster Installation with Plug-and-Play Compatibility

The new P1MB has been preconfigured specifically for the SOLIS S5 and S6 inverter series, allowing installers to complete installations significantly faster than with traditional CT-based solutions.

Installation is straightforward:

Connect the P1MB to the smart meter’s P1 port.
Connect the module to the SOLIS inverter via Modbus RTU.
The system is immediately ready for operation without additional software configuration.

Because no CT clamps are required, installers no longer need to determine the correct clamp orientation or select different CT meters for single-phase and three-phase installations. This not only saves installation time but also reduces complexity, minimizes wiring, and frees up valuable space inside the electrical cabinet.

Designed for Reliable Solar Installations

By using certified smart meter data instead of indirect current measurements, the P1MB provides a dependable communication bridge between the utility meter and the inverter. Installers benefit from a cleaner installation process, while end users receive more reliable energy monitoring and system performance.

The validated configuration ensures full compatibility with the SOLIS S5 and S6 series, giving installers confidence that every installation performs as intended from the very first commissioning.