> For the complete documentation index, see [llms.txt](https://docs.voltmasters.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.voltmasters.io/device-integrations/pv-inverters/abb.md).

# ABB

Our EMS supports integration with PV inverters from ABB. ABB provides solar inverters for commercial and utility-scale photovoltaic installations.

The inverter communicates with our EMS for production monitoring and control.

### Supported devices

We support the following ABB inverter:

* **PVS 50**: three-phase string inverter for commercial PV installations
* All Fimer ABB inverters produced after 2022 support the SunSpec protocol. For models produced before 2022, check the data sheet to see if it supports the "SunSpec" protocol. Most models (also the older ones) support the "SunSpec" protocol.
* If Sunspec is supported, we recommend using the Sunspec protocol.

### Configuration <a href="#configuration" id="configuration"></a>

You need to configure the inverter to communicate with the Controller. The first step is to ensure that the Fimer ABB is connected to the same network as the Controller.

The second step is to find the Fimer ABB inverter's IP address and to open that address in a web browser. This will open the inverter's web interface:

![Image 1](https://docs.eniris.be/img/customers/abb/0.png)

Log in with a user that has **admin** rights. Admin rights are required to change communication settings. If you do not have admin rights, you will see that certain options are unavailable.

<details>

<summary>I forgot the username or password for my admin account</summary>

![Image 1](https://docs.eniris.be/img/customers/abb/pk1.png)

![Image 1](https://docs.eniris.be/img/customers/abb/pk2.png)

</details>

After logging in, you reach this page:

![](https://docs.eniris.be/img/customers/abb/1.png)

#### Modbus TCP (Ethernet) <a href="#modbus-tcp-ethernet" id="modbus-tcp-ethernet"></a>

On the left side menu, go to the '*Modbus*' settings page:

![Image 1](https://docs.eniris.be/img/customers/abb/tcp1.png)

Ensure that the '*Communication protocol server*' is set to 'Sunspec'.

![Image 1](https://docs.eniris.be/img/customers/abb/tcp2.png)

Modbus TCP is now enabled. In Controller, you can find and add this inverter on the same IP address.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.voltmasters.io/device-integrations/pv-inverters/abb.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.