Sucosoft S40 Programming Software Install Download Instant

Error: "Runtime Error 339" or "Component 'MSCOMM32.OCX' not correctly registered"

Error: "PLC not found"

Alternative Solution: If you are doing a fresh project, consider using Eaton's XN1/XN2 PLCs, which use the modern Xsoft-Codesys software. This is fully compatible with Windows 10/11. Sucosoft S40 should strictly be used for maintaining existing PS4 systems. sucosoft s40 programming software install download

Sucosoft S40 is the legacy industrial programming software developed by Moeller (now part of Eaton) for its PS4 and PS416 series programmable logic controllers (PLCs). It is a central tool for complex automation solutions, complying with the IEC 61131-3 standard for PLC programming. Official Download and Versioning

You can find various versions and updates of Sucosoft S40 directly on Eaton’s Assets Server . Error: "Runtime Error 339" or "Component 'MSCOMM32

Standard Versions: Versions like V5.05 and V5.06 are available as updates.

Legacy Support: Older versions, including V4.24 and V5.02, are archived for compatibility with older hardware. Error: "PLC not found"

Demo Version: A demo version (S40 V5.0 Demo) is typically available for those who want to test the interface before full deployment. System Requirements

Because Sucosoft S40 is a legacy application, its system requirements reflect older computing standards. Running it on modern hardware often requires a virtual machine or compatibility mode. Minimum Requirement Recommended Operating System Windows 95 / 98 / NT 4.0 Windows XP (Compatibility Mode) Processor Pentium Processor RAM 32 MB or higher Hard Disk Space 50 MB Free Connectivity Serial COM port for programming USB-to-Serial Adapter (if native port is unavailable) Installation and Setup Guide


  • Click OnlineLogin to connect. If successful, the background turns green.

  • Follow these steps precisely. We assume you have obtained the legitimate Sucosoft_S40_V4.5.2.0_Setup.zip (or similar) from your distributor.