# Modbus and Serial Configuration

The Gateway has a very advanced Modbus master application with a convenient graphical interface. Below are the capabilities of the application:

- Modbus TCP/IP and Modbus RTU support.
- Any number of serial ports
- Support for external USB/serial interfaces
- JSON, TCP/IP and MQTT string formation
- Data logging in the event of no connection to a server
- Storage of all data in internal memory

> The Modbus Master application is optimized for industrial use, allowing you to easily configure communication parameter, define polling schedules, and integrate Modbus data into your automation or monitoring workflows.

<p class="callout info">A detailed guide to **Modbus Master** configuration is available [here.](https://docs.atreyo.in/books/modbus-master/page/modbus-master-562)</p>

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