Rslogix 500 81000 Cpr9 W Master Disk Exclusive
Implement the following solutions in order of priority.
If the .RSS file is stored on a network share, Windows file locking mechanisms may hold a residual lock on the file even after the previous session ended, triggering the "Exclusive" error.
You might ask: Why not just download RSLogix 500 v12 or later from Rockwell?
Here is the compelling case for the 81000 CPR9 Master Disk Exclusive:
| Aspect | Modern RSLogix 500 (v12+) | CPR9 Master Disk Exclusive | |--------|---------------------------|----------------------------| | Activation | FactoryTalk Activation – requires internet or phone call | No activation – disk itself is license | | OS Compatibility | Windows 10/11 (64‑bit) only via virtual machine | Native on XP/Vista, ideal for legacy panels | | Driver support | No 1747‑PIC driver (DH‑485 via UIC only) | Includes 1747‑PIC for old PC serial ports | | Offline use | Requires periodic check‑in (depending on license) | Works completely offline forever | | Cost | $1,000+ per license (or subscription) | One‑time purchase (if found) |
For a plant with 20 SLC 5/03 processors communicating over a legacy DH‑485 network running on industrial Pentium PCs, the CPR9 Exclusive Master Disk is irreplaceable.
This report details the cause and resolution for Error Code 81000 encountered in RSLogix 500 CPR9. This error typically presents with a message similar to "Failed to go online. The master disk is exclusive" or "File access denied." It indicates that the RSLogix 500 application cannot secure the necessary file locks to access the project file (.RSS) or the associated temporary files, usually due to a conflict with RSLinx or a stale lock file. rslogix 500 81000 cpr9 w master disk exclusive
The industrial computers that run RSLogix 500 often have failed hard drives. When a technician rebuilds a legacy HMI server or programming laptop, they cannot download RSLogix 500 CPR 9 from Rockwell’s website. Rockwell’s download center typically only retains the last two or three revisions. The Master Disk Exclusive is the only physical way to rebuild the environment.
Verdict: 4.5/5 Stars Despite its age, this remains the gold standard for programming the Allen-Bradley MicroLogix and SLC 500 families. It is stable, fast, and a necessity for any facility running legacy Rockwell Automation hardware.
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The RSLogix 500 (81000 CPR9 w Master Disk Exclusive) refers to a specific legacy licensing and software package from Rockwell Automation used to program Allen-Bradley SLC 500 and MicroLogix PLC families. Implement the following solutions in order of priority
This version belongs to a period of transition between the older EVRSI (Master Disk) activation method and the modern FactoryTalk Activation system. Key Components of the Package
RSLogix 500 (81000 Series): This is the core software used for ladder logic development. The "81000" often appears in specific catalog or bundle identifiers for standard or professional editions.
CPR9 (Common Platform Release 9): A specific version of the Rockwell Automation software platform that ensures compatibility and integration between different software products like RSLinx and FactoryTalk Services.
Master Disk Exclusive: This signifies that the software's license is stored on a physical floppy disk or specialized media.
EVMOVE Activation: The license must be "moved" from the master disk to the computer's hard drive to run the software without the disk present. This report details the cause and resolution for
Transferability: The license can only exist on one machine at a time but can be moved back to the disk or transferred between PCs using the Move Activation utility. Why This Version Matters
Technical Report: RSLogix 500 Error Code 81000 (CPR9 with Master Disk Exclusive)
Date: October 26, 2023 Subject: Troubleshooting "Error 81000: Master Disk Exclusive" in RSLogix 500 CPR9 Software: RSLogix 500 (CPR9), RSLinx Classic
Regardless of the “Master Disk Exclusive” modifier, the base CPR9 version includes:
| Feature | Description | |---------|-------------| | Ladder Logic Editor | Drag‑and‑drop rung editing, search/replace across subroutines | | Data Monitoring | Real‑time viewing of timers, counters, integers, floats | | Project Verifier | Checks for duplicate outputs, overlapping addresses | | Force Table | Force I/O points on/off for debugging | | RSLinx Lite | Embedded communication driver (DF1, DH485, Ethernet) | | Online Editing | Modify rungs while the PLC is in Run mode (MicroLogix, some SLC) | | Password Protection | Lock subroutines or entire projects |
The Exclusive Master Disk additionally contains:
