Omron PLC USB to 485 Converter and Siemens PLC

This application about how to Omron PLC USB to 485 converter and communication with Siemens PLC using Arduino, USB Host Module and MAX 485 C...

PLC Modbus Master - Arduino Modbus Slave - 2 Wire RS485 Communication Module

How to make PLC such as Modbus Master and Communicate with Arduino such as Modbus Slave ? This article about RS454 communication between PL...