This was a proprietary 3.5-inch floppy disk (or a specialized CD-ROM layout) containing a hidden, uncopyable system file (usually EVRSI.SYS ).
This system utilizes a hidden, copy-protected file ( EVRSI.SYS ) residing in the root directory of the hard drive or floppy disk.
This essay explores the historical significance, technical specifications, and licensing mechanics of , a legacy software standard for industrial automation. The Legacy of RSLogix 500
The disk was heavier than he expected. It held more than software; the molded plastic case felt like a small tomb for an older world—floppy drives and men who wore pocket protectors and signed off on ladder logic like it was liturgy. RSLogix 500 8.10.00 CPR9: the patch notes he could barely remember from long-ago manuals. CPR9. He liked the rhythm of it. Control Program Revision. Revision nine. Nine revisions, nine ghosts. RSLogix 500 8.10.00 CPR9 w master disk
RSLogix 500 v8.10.00 CPR9 represents a fascinating bridge between ancient and modern industrial computing. While the "master disk" mechanic belongs to the past, understanding how it interacts with this specific software version allows controls engineers to maintain older, reliable machinery without disrupting production lines or compromising system integrity.
Use disk imaging tools (like WinImage) to attempt a raw read of the disk sectors and generate a clean .FLP virtual file. Migrating from Master Disks to FactoryTalk Activation
The RSLogix 500 8.10.00 CPR9 with a master disk offers several benefits to users, including: This was a proprietary 3
RSLogix 500 is a 32-bit ladder logic programming package designed for Windows operating systems. It is used to configure and program: (SLC 5/01, 5/02, 5/03, 5/04, 5/05) MicroLogix (1000, 1100, 1200, 1400, 1500) Key Features of Version 8.10.00 (CPR9)
RSLogix 500 8.10.00 CPR9 was designed for , but it also runs on newer operating systems with some caveats.
via a physical master disk. Released around August 2008, it marked the transition toward the modern FactoryTalk Activation system. Rockwell Automation Activation and the Master Disk The Legacy of RSLogix 500 The disk was
RSLogix 500 remains valued for its streamlined user interface and powerful diagnostic tools. It uses the project file extension , which encapsulates ladder logic, configuration, and documentation. Key functions include:
🛑 Please ensure any copy of RSLogix 500 you use is properly licensed. Rockwell Automation no longer sells new licenses for RSLogix 500 (it has been replaced by Connected Components Workbench for Micro800, but legacy licenses remain active). If you need a legal copy, contact your local Rockwell distributor about legacy license transfer options.
For maximum compatibility when sharing code with other integrators, save a copy “As Version 7.00” using File → Save As → Save As Type → RSLogix 500 Version 7.x.