The main program used with Modicon PLCs depends on the type of controller. For larger and more complex Modicon PLCs like the M340, M580, Quantum, Momentum, and Premium series, the recommended software is EcoStruxure Control Expert. This software, formerly called Unity Pro, allows you to program, monitor, and troubleshoot these PLCs efficiently. It is ideal for industrial applications that require robust control and advanced functionality.
For smaller and modern Modicon PLCs like the M221 and M241, you use EcoStruxure Machine Expert. This is a user-friendly tool that handles programming, visualization, and commissioning in one platform. It was earlier known as SoMachine. Some older PLCs may still use legacy programs like PL7 or Concept/ProWORX, and certain third-party tools can also support Modicon PLCs, but EcoStruxure software is the standard choice today.