Modbus RTU on Arduino

I have a sensor that sends data through Modbus RTU and I would like to communicate with it but I’m not sure how.

I bought a cheap rs485 converter MAX485-Module-RS-485-TTL

The settings from the sensor datasheet are the following:

Baud Rate: 9600 Parity: None Data Bits: 8 Stop Bits: 1 Model: 1-Word

I know what Baud Rate, data bit and stop bits are but I don’t know how to use these settings with an Arduino UNO using a library like Modbus Master.

Any help would be appreciated!