Eatons easySoft software is used to program easy controllers and displays. The software provides four programming languages: Structured text (ST), Function block diagram (FBD), Ladder diagram (LD), Easy programming language event-driven programming (EDP). An integrated offline simulation tool allows users to test programs before commissioning. Existing programs that were created for previous series controllers (easy500/700/800) can be simply transferred to the current easyE4 PLC with automatic conversion using easySoft version 7 or higher.