Maintaining legacy automation systems requires navigating specific combinations of software versions, licensing schemes, and operating systems. One such combination is .
Licensing is tied to a physical 3.5" floppy "Master Disk" or a specific bit on the hard drive moved via the "EvMove" utility. Exclusivity:
When combined with CPR9 w Master Disk Exclusive , the number suggests a controlled, high‑value distribution.
: A legacy activation state. In the early days of RSLogix, software licenses were validated using a physical 3.5-inch floppy disk (the "Master Disk") containing a hidden security sector (EVMOVE activations). "Exclusive" indicates that the software registry or initialization file is strictly looking for this physical token or its specific hard-drive registry equivalent, rather than modern network or file-based activations. Primary Root Causes rslogix 500 81000 cpr9 w master disk exclusive
(Business and Home Basic) and Windows XP SP2, though it remains a final major release supporting legacy activation methods. Software Bundle : Typically includes RSLinx Classic (version 2.53 or later required for Vista) and RSLogix Emulate 500 for offline code testing. Rockwell Automation The "Master Disk" Activation
: To unlock RSLogix 500, the user ran the EVMOVE executable. This tool safely transferred the hidden cryptographic bytes from the floppy disk directly to the root of the target computer's hard drive ( C:\ ).
: Used for simulating ladder logic execution without physical PLC hardware. Operating System Requirements Exclusivity: When combined with CPR9 w Master Disk
If you have already activated the software on one PC and want to move the license to another, you must use the official utility provided by Rockwell. Attempting to copy, move, or email the activation file by any other method will corrupt it, rendering the license unusable.
is the industry-standard programming software for Rockwell Automation’s legacy PLC platforms, including the MicroLogix 1100, 1200, 1400, and SLC 500 series. The specific part number 81000 refers to a distinct commercial and licensing variant of this software. The designation CPR9 (Critical Product Release 9) represents a specific functional version, while w/ Master Disk Exclusive indicates a unique, physical software distribution and licensing method no longer common in modern automation.
Since physical floppy disks are prone to failure, it is highly recommended to make an image of the Master Disk immediately. or License .
Disclaimer: This article is for informational purposes. Proper licensing from Rockwell Automation is required for commercial use.
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Rockwell Software\ Look for keys labeled RSTools , RSLogix 500 , or License .