> For the complete documentation index, see [llms.txt](https://docs.aitheon.com/industrial-automation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aitheon.com/industrial-automation/type-of-device-vfd/mitsubishi-electric-fr-a800-e-modbus-tcp-configuration.md).

# Mitsubishi Electric FR-A800-E Modbus TCP Configuration

 **Instruction for configuration Mitsubishi Electric VFD FR-A800-E as Modbus/TCP Server (Slave).**

{% hint style="info" %}
Detailed instructions are described in [**A800-E / F800-E ETHERNET FUNCTION MANUAL**](https://dl.mitsubishielectric.com/dl/fa/document/manual/inv/ib0600628eng/ib0600628engc.pdf)
{% endhint %}

For established FR-A800-E in ModbusTCP mode, you need to set the next parameter into VFD.

1\) In **Pr.79** - set value **6**.

2\) In **Pr.117** - set **117**.

3\) In **Pr.340** - set **10**.

4\) In **Pr.550** - set **5**.

5\) In either of the parameters from **Pr.1427** to **Pr.1429** set value **502**.

6\) In **Pr.1432** - set value **900**.

7\) Set the range of **ІР address** from which will be possible to receive commands to FR-A800-E. Enter values into parameters from **Pr.1449** to **Pr.1454**. 

![](https://2932290758-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MPhYZyRjl1LMzh5UVLj%2F-MPhZ3HCOWNv53uKQav8%2F-MPhZqvfF7BX6tLAEsQu%2Fimage.png?alt=media\&token=33423cdf-68aa-4230-89a2-ae995f0cc7a9)

8\) In **Pr.1455** set value **1000**.

9\) Restart the VFD.

10\) Change the mode of VFD to **NET** by using the **PU/EXT** button.

Please remember that **Unit identifier** for VFD is reserved by number **255**.

Below is an example of a message structure for the **H03** function (Read holding register).  

![](https://2932290758-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MPhYZyRjl1LMzh5UVLj%2F-MPhbHlkdBorbIt1YDrQ%2F-MPhd1IwxDTwQofx-oQ_%2FPicture2.png?alt=media\&token=a98aecaa-a39a-4252-b048-33a15452a02c)

Below you will find a number of Modbus registers to control VDF.  

![](https://2932290758-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MPhYZyRjl1LMzh5UVLj%2F-MPhbHlkdBorbIt1YDrQ%2F-MPhd6SoCEKaY7tiiXHx%2FPicture3.png?alt=media\&token=7249d7f5-97d3-48ca-aa3b-2210fdf37f77)

![](https://2932290758-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MPhYZyRjl1LMzh5UVLj%2F-MPhbHlkdBorbIt1YDrQ%2F-MPhdBTxLnFXIuutapiY%2FPicture4.png?alt=media\&token=8167c3f4-1d14-4df8-bf38-a5b7b5402035)

For example, to run a motor you need to paste **2** - forward rotation, or **4** - reverse rotation, to the register **40009**.

{% file src="/files/-MPmnDeHDztbAjiT4AZu" %}
Example of a file with a parameter for FRConfigurator2.
{% endfile %}

{% hint style="info" %}
Copy the file\`s content to a text file and save it as **.pr4**
{% endhint %}