Legacy Milestone: Version 20.04 / 20.05 ├── Final release for older L6x controllers ├── Most stable legacy environment └── Broad Windows 10/11 compatibility via late patches Version 20 (The Gold Standard of Legacy)
You cannot connect to a PLC running Version 24 using Version 30 software. The major revision of the software must exactly match the major revision of the controller's firmware. If you try to connect a newer version to an older controller, you will receive a fatal error message. When you install multiple versions, Windows will automatically launch the correct version based on the project file you double-click. rslogix 5000 version better
Rockwell Automation no longer supports RSLogix 5000 versions 10 through 20. You cannot get technical support from Rockwell for these versions. However, the industrial base is so large that forums, integrators, and internal knowledge keep them alive. Legacy Milestone: Version 20
Fully supports Version 24 up to Version 36 (Note: Version 20.05 was released specifically to add Windows 10 compatibility to the legacy line). However, the industrial base is so large that
: Prevents unauthorized firmware tampering.