> For the complete documentation index, see [llms.txt](https://enless.gitbook.io/centre-aide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enless.gitbook.io/centre-aide/guides-installation/documentation-en/sensors/editor-21/configuration.md).

# Configuration

TX MODBUS: configuration

The MODBUS TX allows reading and writing 60 Modbus registers. These registers can be distributed across up to 10 Modbus slaves. This section presents the recommended order for configuring, activating, and checking your MODBUS TX.

## Radio architecture

The diagram below shows the radio link between the MODBUS TX and the MODBUS RX. 

<div data-with-frame="true"><figure><img src="https://1715332350-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3HoPKoOlgG9Qj4E6fu0w%2Fuploads%2F2pEcu4gqdpXSpd0Hqd0w%2FProduct%20architectures%20-%20TX%20MODBUS.png?alt=media&amp;token=533853e8-5c3b-47a7-9648-ea38270ecae5" alt=""><figcaption></figcaption></figure></div>

The MODBUS TX configuration is done from the MODBUS RX configuration server.

Checks can then be carried out from the MODBUS TX server.

{% hint style="info" %}
The MODBUS TX communicates with an Enless Easy LoRa receiver (proprietary mode).

Use this section to prepare the configuration, validate activation, and check the exchanged data.
{% endhint %}

## Configure a MODBUS TX

## Before you begin

Prepare the following information:

* The LoRa ID of the MODBUS TX (visible on the product label)
* The Modbus parameters of each slave: ID, baud rate, parity, data bits, and stop bits
* The addresses of the registers to read or write

Also keep in mind the product limits:

* 10 Modbus slaves maximum
* 60 Modbus registers maximum

## Recommended procedure

Follow these steps in this order:

1. [Configuration](/centre-aide/guides-installation/documentation-en/sensors/editor-21/configuration/configuration.md)\
   Declare the MODBUS TX and enter the slave parameters.
2. [Activation and Modbus data](/centre-aide/guides-installation/documentation-en/sensors/editor-21/configuration/activation-and-modbus-data.md)\
   Validate activation and display the Modbus table.
3. [Checks](/centre-aide/guides-installation/documentation-en/sensors/editor-21/configuration/checks.md)\
   Check the configuration and the data read on the MODBUS TX side.


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