# Sunny Boy / Sunny Tripower

> Supported devices: Sunny Tripower 3.0-10.0, Sunny Tripower TL-20, Sunny Tripower TL-30, CORE1, CORE2, Sunny Tripower 125, Sunny Tripower X and Sunny Boy

Source: https://voltmasters.io/en/docs/device-integrations/pv-inverters/sma/sunny-boy-sunny-tripower/

Our EMS connects directly to SMA Sunny Boy and Sunny Tripower inverters over Modbus TCP for production monitoring and active-power curtailment. Most models integrate through the generic SunSpec adapter; a few families have a dedicated SMA-native adapter.

### Supported devices

-   **Sunny Tripower 3.0 / 4.0 / 5.0 / 6.0 / 8.0 / 10.0** (STP3.0-STP10.0)
-   **Sunny Tripower TL-20 series** (STP 5000TL-20, 6000TL-20, 7000TL-20, 8000TL-20, 9000TL-20, 10000TL-20, 11000TL-20, 12000TL-20)
-   **Sunny Tripower TL-30 series** (STP 15000TL-30, 20000TL-30, 25000TL-30) and the TL-10 siblings STP 10000TL-10 and 17000TL-10
-   **Sunny Tripower CORE1** (STP 50-40 / STP 50-41)
-   **Sunny Tripower CORE2** (STP 110-60)
-   **Sunny Tripower 125** (STP 125-70)
-   **Sunny Tripower X** (STP 12-50 / 15-50 / 20-50 / 25-50)
-   **Sunny Boy** and other SunSpec-capable SMA inverters

> **Note**
>
> Any SMA inverter that exposes the standardised **SunSpec Modbus** profile can be integrated through the generic **SunSpec** adapter, even if it is not listed by name above. See [SunSpec (Generic)](https://voltmasters.io/en/docs/device-integrations/pv-inverters/sunspec/). To read several inverters through a single connection, use the [SMA Data Manager](https://voltmasters.io/en/docs/device-integrations/pv-inverters/sma/data-manager/).

### EMS functionality

-   Monitoring of PV production
-   Active-power curtailment where the inverter exposes it (negative-price capping, fixed injection limit, zero injection)
-   Integration of PV production into broader energy-management strategies (batteries, EV chargers, site consumption)

### Enable Modbus TCP

1. **Open the inverter interface**
   
   -   **Connect** your laptop to the same network as the inverter.
   -   **Open** a browser and enter the inverter’s IP address.
   -   **Log in** with **Installer** credentials.
2. ![The login page of the SMA STP50-41 web interface, in Dutch, with the language, user group and password fields.](https://voltmasters.io/assets/docs/unnamed.webp)
3. **Open device parameters**
   
   -   Go to **Device Parameters > Edit Parameters**.
4. ![The SMA web interface with the device parameters tab highlighted, the device status, the current power on a gauge and the yield figures.](https://voltmasters.io/assets/docs/unnamed-1.webp)
5. ![The SMA device parameters page, in Dutch, with the edit parameters button highlighted above the collapsed parameter groups.](https://voltmasters.io/assets/docs/unnamed-2.webp)
6. **Enable the TCP server**
   
   -   Expand **External Communication → Modbus → TCP Server**.
   -   Set **Enabled = Yes** and **Port = 502**.
7. ![The SMA external communication section, in Dutch, with the Modbus unit ID and the TCP server on port 502 highlighted.](https://voltmasters.io/assets/docs/unnamed-3.webp)
8. **Save the settings**
   
   -   Click **Save All**.

![The SMA device parameters tab, in Dutch, with one unsaved change that enables the Modbus TCP server, and the save all button highlighted.](https://voltmasters.io/assets/docs/unnamed-4.webp)

### Enable reactive power control

To allow the EMS to send reactive-power setpoints, the inverter's reactive power mode must be set to external control. In the inverter's web interface, go to:

**Device parameters > System and device control > Inverter > Reactive power mode**

Set both of the following parameters to **Q, external setting** (instead of **Off**):

-   **Reactive power mode in case of active power output**
-   **Reactive power for zero active power**

![The SMA reactive power mode section with the dropdown open and Q, external setting highlighted while Off is still the active choice.](https://voltmasters.io/assets/docs/sma-reactive-power-mode.webp)

> **Note**
>
> In the Dutch interface: **Apparaatparameters > Installatie- en apparaatbesturing > Omvormer > Blindvermogenprocedure**: set **Procedure blindvermogen bij afgifte act. vermogen** and **Procedure blindvermogen bij nul act. vermogen** both to **Q, externe instelling**.

### Which adapter is used

Most SMA inverters integrate through the generic **SunSpec** adapter (`sunspec.generic`), which communicates over the standardised SunSpec Modbus register layout and covers production monitoring and control where the inverter exposes it. This is the default and the recommended starting point, see [SunSpec (Generic)](https://voltmasters.io/en/docs/device-integrations/pv-inverters/sunspec/).

A few families need or offer a dedicated adapter that talks to SMA's **native** Modbus register map instead (exposing SMA-specific values such as per-phase active power and DC bus voltage/current, plus SMA's own active- and reactive-power control registers):

-   **Sunny Tripower TL-20 series (legacy).** The TL-20 models predate SMA's SunSpec support and are integrated through the dedicated **"SMA Sunny Tripower TL-20"** adapter. Selecting a TL-20 model uses this adapter automatically.
-   **Sunny Tripower CORE2 (STP 110-60).** The CORE2 does not work with the generic SunSpec adapter and uses the dedicated **"SMA Sunny Tripower CORE2"** adapter. Selecting the CORE2 model uses this adapter automatically.
-   **Sunny Tripower 125 (STP 125-70).** The model number looks like a CORE2, but this is an SMA design and not a rebranded unit: it refuses part of the SunSpec control registers. It uses the dedicated **"SMA Modbus profile"** adapter, which is selected automatically with the model. Set the inverter's Modbus **Unit ID** to **3**.
-   **Sunny Tripower TL-30 series.** The TL-30 models (STP 15000TL-30, 20000TL-30, 25000TL-30) default to SunSpec, but a dedicated **"SMA Sunny Tripower TL-30"** adapter is available as an **opt-in override**. It is not selected automatically: choose it per device when adding the device (or change the adapter afterwards). Left untouched, these models keep using SunSpec.
-   **Inverters without SunSpec support.** Older Sunny Tripower units whose firmware does not expose SunSpec fall back to the dedicated **"SMA Modbus profile"** adapter.

> **Warning**
>
> Active-power curtailment (with any adapter) requires the inverter's Modbus **write access** and grid-management mode to be enabled in the SMA Installer settings, and the correct Modbus **Unit ID** to be configured. Without this, the EMS can read data but cannot send setpoints.

### Active power control and fallback

Curtailment only arrives if the inverter's feed-in management mode points at the register the EMS writes, and a wrong mode fails silently. The inverter can also limit itself when it stops receiving setpoints. See [Active power control and fallback](https://voltmasters.io/en/docs/device-integrations/pv-inverters/sma/active-power-control-and-fallback/).