Rslogix 5000 Firmware 20.12 Jun 2026

: CompactLogix 5380 controllers require a minimum of v28 (Studio 5000). They are not compatible with RSLogix 5000 v20.

Any version 20.xx software on your PC can successfully communicate, upload, and download to a PLC running firmware 20.12. Critical Software Compatibility Guide

If your system uses redundancy, standard firmware like 20.012 will not work; you must use specific redundancy firmware (typically ending in a different suffix, like 20.05x ). rslogix 5000 firmware 20.12

Download the v20.12 installer from the Rockwell Automation Product Compatibility and Download Center (PCDC).

Fortunately, , moving away from the isolated architecture of v20.03. Step-by-Step Installation and Flashing Guide : CompactLogix 5380 controllers require a minimum of

| Controller Family | Supported? | Minimum Required Major Revision | | -------------------------------- | --------------- | ------------------------------- | | ControlLogix 5570 (L5x, L6x, L7x) | ✅ Yes | 20.12 (L7x: 20.011 minimum) | | ControlLogix 5580 (L8x) | ❌ No | 32+ | | CompactLogix 5370 (L3, L4) | ✅ Yes | 20.011 | | CompactLogix 5380 (L3, L8) | ❌ No | 30+ | | SoftLogix 5800 | ✅ Yes | 20.011 | | DriveLogix 5730 | ✅ Yes (limited) | 20.011 |

: Some users have reported issues trying to open .ACD files directly from within a .ZIP folder. The recommended workaround is to extract the file to a folder first, then open it. Critical Software Compatibility Guide If your system uses

RSLogix 5000 v20 is a milestone release, often regarded as the "last" version before the transition to Studio 5000. Firmware 20.12 was released by Rockwell Automation primarily to address security vulnerabilities found in earlier v20 iterations.

One of the primary reasons control engineers explicitly target RSLogix 5000 v20.12 is its specific compatibility with .

In a ControlLogix Redundancy chassis, the secondary controller stays in "Syncing" or "Disqualified" after flashing to 20.12. Solution: Redundancy modules (1756-RM2) also require specific firmware that matches the Logix firmware. Ensure your RM2 firmware is at least Revision 12. Also, remember that the secondary controller must be flashed before inserting it into the redundant pair.

RSLogix 5000 version 20 introduced a host of new capabilities, and revision 20.12 inherits all of them while adding stability improvements.