Converter Smart P1 Connect

Compact and Versatile Interface for Energy Measurement and Data Communication

The Xemex Smart P1 Connect dongle is a smart and compact conversion module (dongle) that makes real-time consumption data from a smart meter available via Modbus TCP. The dongle forms a robust bridge between digital energy meters and systems such as EV chargers that require energy management. This makes the dongle a smart add-on for your residential energy meter. Whether it concerns load balancing or monitoring, the dongle provides a reliable and flexible solution for both residential and professional applications.

Flexible Installation via Ethernet, Wi-Fi, or Direct Connection

The dongle supports multiple connection methods: via a fixed Ethernet connection, Wi-Fi, or a direct peer-to-peer connection with a charging station. This makes the device quick and easy to install in various situations without complex network configurations. Configuration is done intuitively via a built-in web interface accessible via mDNS, local IP address, or Wi-Fi hotspot.

Data Exchange via Modbus TCP and MQTT Integration

The dongle continuously reads smart meter data through the P1 port and converts it to Modbus TCP. This data can then be used by EV chargers, EMS systems, or other smart devices. Additionally, it is possible to connect the dongle via the built-in web interface to an MQTT broker of your choice.

For centralized applications, Xemex offers the possibility to use an integrated MQTT broker via the cloud-based ENNY platform (hosted in Europe). This combination enables advanced data integration and monitoring without the dongle needing to host a broker itself.

Status Software and Status LED

A four-color LED indicator clearly shows the status:

  • Flashing red: starting up / no P1 data
  • Flashing orange: no IP address
  • Flashing green: network configuration required
  • Solid green: everything is functioning correctly

Using the front button, you can quickly perform a new network scan or reset to factory settings by holding it for 1 second.

No Local Hosting, but Smart Software in Compact Hardware

The Smart P1 Connect dongle is a hardware and software solution in one compact module. The device itself does not host a broker or applications but acts as an intelligent translation layer between the smart meter and the network. Thanks to the built-in software, network settings, forwarding modes, and protocols can be easily managed without external software or gateways.

Support for Multiple Usage Scenarios

The Smart P1 Connect supports three usage scenarios:

  1. Connection to the local network via DHCP or static IP.
  2. Direct connection to an EV charger (peer-to-peer).
  3. Forwarding P1 data to other devices via the optional P1 output.

For DSMR 5.0 meters, the dongle receives new data every second; for DSMR 4.2, this is every 10 seconds. Thanks to advanced forwarding modes, the dongle can also function as an active or passive splitter, allowing multiple devices to use the data.

Splitter Function: Smart Data, Two Destinations at Once

The Smart P1 Connect Dongle is equipped with both a P1 input (left) and a P1 output (right). The output passes exactly the same data as received on the input—without delay or modification. This makes it possible to connect one smart meter simultaneously to multiple devices. For example, a HomeWizard P1 dongle can be connected to the output to visualize real-time consumption for the end user, while the EV charger receives the required measurement data via Modbus TCP for load balancing.

Converter Smart P1 Connect

The Xemex Smart P1 Connect makes it easy to read smart meters: Ideal for EV charging station installations with load balancing.

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At Xemex, we are proud of our certifications. Safety, quality, health and environment are of paramount importance. That may sound technical, but it simply means that we treat the environment and people’s health responsibly.

Certification: CE We want to show our customers that we meet all legal requirements, which is why we are proud of our CE certificate. Read more
Certification: RED With the RED certificate, our wireless devices meet the strictest European requirements. This allows us to offer them within and outside the EU. Read more
Certification ROHS Our appliances comply with strict European regulations to avoid harmful substances. This is how we contribute to a more sustainable world. Read more