Sungrow New Hybrid 2024 SH15-25T Modbus RTU

Installation

1. 1Connect the ModbusCloud gateway RS-485 terminals (A and B) to the Sungrow Com2 connector pins A1 (positive) and B1 (negative).
2. 2Set the Modbus slave address on the Sungrow inverter to match the address configured in the ModbusCloud template (default is typically 1).
3. 3Verify the baud rate on the inverter is set to 9600, matching the template default.
4. 4Do not use the Winet S2 dongle for this template, as several registers are unavailable over Modbus TCP with current Sungrow firmware.
5. 5Import the Sungrow New Hybrid 2024 SH15-25T template in the ModbusCloud portal and assign it to your gateway.
6. 6Confirm data is appearing on the ModbusCloud dashboard by checking MPPT readings and battery state values.

Things to watch for

01

Why should I not use the Winet S2 dongle with Modbus TCP for this template?

With current Sungrow firmware, several important registers, including MPPT 3 data, battery running state, and total DC power, cannot be read via Modbus TCP through the Winet S2. Use the RS-485 connection on Com2 (A1 and B1) instead.

02

Some register values like mains connection or total DC power seem incorrect or missing. What is wrong?

These values are located on different registers than commonly expected in Sungrow documentation. The template already maps these adjusted addresses. Make sure you are using the correct template version for 2024 hybrid models.

03

What baud rate should I configure on the Sungrow inverter?

Set the baud rate to 9600 on the inverter RS-485 settings. This matches the template default. Ensure parity and stop bit settings also match (typically 8N1).

04

Which Sungrow models are supported by this template?

The template supports the SH6, SH8RT, SH10, SH15, SH20, and SH25 hybrid inverter models. All use the same register map on the Com2 RS-485 interface.

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