https://cdn.automationdirect.com/static/manuals/c2userm/c2userm.html
https://www.automationdirect.com/adc/shopping/catalog/
programmable_controllers/click_series_plcs/click_plus_plcs_(stackable_micro_modular)/cpus/c2-03cpu
CLICK Ethernet PLC - Quick Start
https://www.youtube.com/watch?v=85EFogeC54A
..
2..
Click PLC Numbering System and Addressing
https://www.youtube.com/watch?v=c8JVrtvZwHU
..
3..
Download PLC Programming Software
https://support.automationdirect.com/
products/clickplcs.html