Project File for Omron PLC USB to 485 Converter and Siemens PLC

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Download Link

Software for Arduino Programming:

1. Arduino IDE : https://www.arduino.cc/en/Main/Software
I use Arduino Version 1.6.6

2. Library : click here
Unzip and Copy Paste folder name USBHostShield2 and ModbusSlaveLib to ..\arduino-nightly\libraries

Project file:

1. Download Project File for Arduino, click here
2. Download Project File for Omron PLC, click here
3. Download Project File for Siemens PLC, click here