sending data( Temperature,Humidity) from arduino nanoto PLC using modbus & rs485

Projects Networking, Protocols, and Devices
1

hello friends

i use sht85 and i want to send data to my plc ,my problem is that i don't know how to do it from my

arduino to my PLC , i looked for some example , I did not find anything

please tel me how to do it , and if someone have an example of code please share with us .

Thank you

2

Provide a link to the documentation for your PLC.

3

hello

hereHardware guide

and

here programming guide
and thank you

4

Ask the person who owns the PLC to tell you if the RS485 interface works.

The PLC has many communication interfaces so it's possible that you may need a license or specific piece of hardware to make it work.
The same may apply to the communication protocols supported by the hardware. Check to see if Modbus is licensed/supported.

5

Thank you for your response

mikb55:
Ask the person who owns the PLC to tell you if the RS485 interface works.

yes the Rs485 work and supported

if you may , can you help me in programming my arduino