Hoymiles DTU-PRO Datalogger

Name: Hoymiles DTU-PRO Datalogger
Brand: Hoymiles
SKU: 5e0fa095-23cc-4ee2-bc22-5c10b4590861

Hoymiles

Reads solar production data from Hoymiles DTU-PRO dataloggers via Modbus TCP.

Overview

This template connects to Hoymiles DTU-PRO and DTU-PRO-S dataloggers via Modbus TCP. It reads grid voltage, grid frequency, PV power, temperature, and daily production values. No write or control registers are included.

Key readings

Grid Voltage
Grid Frequency
PV Power
Temperature
Today Production

Use cases

Monitor real-time PV power output and grid frequency from Hoymiles microinverters on a live dashboard.
Log daily solar production values to generate weekly or monthly energy reports for customers.

Create an alert when PV power drops to zero during daylight hours to detect potential system faults.

Track inverter temperature readings to identify overheating conditions on rooftop installations.

Compare grid voltage trends over time to assess power quality at the point of connection.

Installation

1Connect the ModbusCloud gateway (MCG or MLP series) to the same local network as the Hoymiles DTU-PRO datalogger.
2Ensure Modbus TCP is enabled on the DTU-PRO by checking the datalogger settings via the Hoymiles configuration interface.
3Note the IP address of the DTU-PRO on your local network and configure it as the target device in the ModbusCloud gateway.
4Import the Hoymiles DTU-PRO template from the ModbusCloud template library and assign it to the gateway.
5Verify that data is being received by checking the live readings for grid voltage, PV power, and today production in the ModbusCloud dashboard.