Modbus Communication between Arduino UNO and PLC ?

Projects General Guidance
1

Hello to everyone,
I have Arduino Uno and MKR Ethernet Shield W5500, I want to communicate with Siemens PLC.
can you tell me which modbus libraray i have to use to send the data from arduino to PLC. If someone already made the program related to this, kinldy mentioned that programming link.

Thanks alll in adavance for help

2

If you are trying to communicate using Modbus over ethernet, then I think it's called Modbus TCP.

I've not used Modbus TCP, but a quick google search brought up the following website which you may find useful:

3

Thankyou for your help. I made the communication between PLC and arduino with this modbus library.