Modbus RTU Slave Implementation on Arduino - Read Sensory Data and Save it to RTU Slave Registers

This Video demonstrates how to Implement a Modbus RTU Slave on an Arduino. The Tutorial shows how to read sensory data using the Arduino and then writing this data to slave registers. The Modbus RTU Master can then access this data by reading the slave registers.
The implementation is done using an Arduino Nano and a ModbusRTUSlave Library

[@pedroadolfogalani858]

Thanks for the video. Please, which modbus simulator did you use? where can I find?

[@mohammedrezk8072]

Very informative Video , my question is there a way to make Arduino master device ? , Thanks for your efforts.

[@brightersidehacks]

Yes, a video on that is coming soon as well

[@GaneshBabu-ed2xx]

I have small doubt in this video, How the modbus master is receving data Without giving TX_PIN and RX_PIN because you didn't mentioned ? and how you are communicating using RS485 only. if anyone knows plz let me know .

[@brightersidehacks]

Modbus rtu is a serial protocol and can be routed over rs485, rs232 and USB. For the case of USB to USB peer connections, you really dont have any extra work to do with regards to wiring since the connections on both ends are homogenous, which is exactly what is used in this tutorial. You should worry about pin and wring definitions if you are working with say rs485 to USB, rs232 to rs485 and and so on ...

[@AmarMohanty]

@@brightersidehacks Can you please demonstrate how to do it with 2 wire and the ttl to rs485 module on arduino's end and rs485 to ttl converter at pc's end so that data in between is in rs485 but two wire A and B, Thanks

[@ganahacks]

sir , please give me code link and app link

[@brightersidehacks]

github.com/brightersidetech/Arduino_Modbus_RTU