Upload the current program and save it as an .ACD file. Export a secondary copy as an .L5K file for text-based recovery if needed.
| Feature Category | Details for Firmware v20.x | | :--- | :--- | | | RSLogix 5000 | | Key New Controller Support | GuardLogix 5572S and 5573S safety controllers | | Major Compatibility Quirk | v20.03 created minor rev incompatibility; v20.04 (and later, likely v20.12) largely resolved this | | Hardware Endpoint | Many older Logix controllers (e.g., ControlLogix L6x series) reach their maximum supported firmware at v20 | | Controller Compatibility | Series B CompactLogix require v20 or later | | Security Concern | Affected by CVE-2021-22681 (critical severity, CVSS v3 score of 9.8) |
This unique behavior of v20.03 has significant implications for teamwork and troubleshooting. If one engineer upgrades to 20.03 and makes changes, other team members without 20.03 will be locked out. This is why it is crucial to coordinate software versions across a facility.
Upgrading a project from RSLogix 5000 v20.12 to Studio 5000 (v21 or higher): rslogix 5000 firmware 20.12
Select (or 20.12) from the list of available firmware versions stored on your PC. Step 3: Execute and Monitor Click Next , confirm the warnings, and click Finish .
Enhanced firmware verification prevents rogue, modified firmware from being forced onto the hardware. Compatibility and Software Requirements
To program a controller with v20.12 firmware, you should use the latest stable minor release of RSLogix 5000 v20 RSLogix 5000 v20.04 or v20.05 Upload the current program and save it as an
When upgrading firmware, safety controllers (GuardLogix) may require specific firmware matching (e.g., 20.12 safety partner firmware). Conclusion: When to Stick with v20.12
A very specific topic!
Visit the Rockwell Automation Product Compatibility and Download Center (PCDC). You will need a valid serial number and a TechConnect contract. If one engineer upgrades to 20
Use the Rockwell BOOTP/DHCP utility to reassign the original static IP address. Best Practices for Legacy System Maintenance
Since Rockwell rebranded to Studio 5000 at v21, v20.12 represents the most refined and stable "end-of-life" firmware for legacy hardware. Critical Considerations & Cons