Connecting between Allen Bradley PLC and Siemens PLC using Arduino ATmega 2560

[@djcarlosalfredo]

This is Modbus communication?

[@plc4u]

modbus and df1

[@djcarlosalfredo]

Hello I ask you please help me with a doubt, is that I have a project for the university and I need to integrate in a network modbus two PLC s7 200 CPU 222 with a mega arduino and a Rs485, please help me the soonest.

[@plc4u]

not arduino it's ok for two two PLC s7 200 CPU 222, with using first plc use modbus slave and second plc use modbus master. for programming using ladder plc programming. thanks

[@djcarlosalfredo]

Whats is your email?