Think differently about effortless control. The easyE4 PLC has 12 I/O and can be expanded to a network of up to 188 I/O points, providing the ideal solution for lighting, energy management, industrial control, irrigation, pump control, HVAC and home automation. In whatever your application, the compact and flexible easyE4 enables control systems that are efficient and effortless to implement. After the easyE4 is installed, changes are easily accomplished through front panel programming, which eliminates the need to change wiring and minimizes downtime. Gain effortless control with the easyE4.