v20.12 introduced improved digital signing for firmware, protecting controllers against unauthorized "man-in-the-middle" firmware updates.
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
As long as your software is v20.xx (e.g., v20.01, v20.03, or v20.04), you can download to and go online with a controller running firmware 20.12 .
| Controller Series | Supports v20.12? | Maximum Firmware | | :--- | :--- | :--- | | (L7x) | Yes (Full support) | v35+ | | ControlLogix 5560 (L6x) | Yes (End of support for L61/L62) | v20.12 (Final) | | CompactLogix 5370 (L3x, L4x) | Yes | v32+ | | CompactLogix 5320 (L32E, L35E) | Yes | v20.12 (Final) | | SoftLogix 5800 | Yes | v24 |
Download the Firmware Revision 20.12 kit from the Rockwell Automation Product Compatibility & Download Center (PCDC). Step-by-Step Upgrade Process
20.12 corrects anomalies found in earlier v20 firmware, specifically addressing issues with communication, memory management, and I/O module interaction. 3. Correcting Anomalies
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.
Earlier issues where "Safe State Values" did not function correctly for specific modules (like 1794-IE4XOE2 and 1794-OE12) were addressed, though full correction often required a corresponding software update to version 20.01. Redundancy Support:
Ensure the PLC is in Program Mode and no critical processes are running. Open ControlFLASH: Launch ControlFLASH.
One of the most common pitfalls for automation technicians is the compatibility gap within Version 20 itself. The original releases.
You might wonder, "Why not just upgrade to the latest firmware (V32, V33, or V34)?" In a perfect world, you would. But industrial automation is rarely a greenfield project. Here is why 20.12 remains a workhorse in the industry.
Because many manufacturing plants still run on this hardware, v20.12 remains one of the most downloaded and discussed firmware revisions in the Rockwell ecosystem. Key Features and Improvements
RSLogix 5000 Firmware v20.12: The Critical Bridge in Allen-Bradley Systems
Rslogix 5000 Firmware 20.12 ((exclusive))
v20.12 introduced improved digital signing for firmware, protecting controllers against unauthorized "man-in-the-middle" firmware updates.
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
As long as your software is v20.xx (e.g., v20.01, v20.03, or v20.04), you can download to and go online with a controller running firmware 20.12 .
| Controller Series | Supports v20.12? | Maximum Firmware | | :--- | :--- | :--- | | (L7x) | Yes (Full support) | v35+ | | ControlLogix 5560 (L6x) | Yes (End of support for L61/L62) | v20.12 (Final) | | CompactLogix 5370 (L3x, L4x) | Yes | v32+ | | CompactLogix 5320 (L32E, L35E) | Yes | v20.12 (Final) | | SoftLogix 5800 | Yes | v24 | rslogix 5000 firmware 20.12
Download the Firmware Revision 20.12 kit from the Rockwell Automation Product Compatibility & Download Center (PCDC). Step-by-Step Upgrade Process
20.12 corrects anomalies found in earlier v20 firmware, specifically addressing issues with communication, memory management, and I/O module interaction. 3. Correcting Anomalies
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. | Controller Series | Supports v20
Earlier issues where "Safe State Values" did not function correctly for specific modules (like 1794-IE4XOE2 and 1794-OE12) were addressed, though full correction often required a corresponding software update to version 20.01. Redundancy Support:
Ensure the PLC is in Program Mode and no critical processes are running. Open ControlFLASH: Launch ControlFLASH.
One of the most common pitfalls for automation technicians is the compatibility gap within Version 20 itself. The original releases. or V34)?" In a perfect world
You might wonder, "Why not just upgrade to the latest firmware (V32, V33, or V34)?" In a perfect world, you would. But industrial automation is rarely a greenfield project. Here is why 20.12 remains a workhorse in the industry.
Because many manufacturing plants still run on this hardware, v20.12 remains one of the most downloaded and discussed firmware revisions in the Rockwell ecosystem. Key Features and Improvements
RSLogix 5000 Firmware v20.12: The Critical Bridge in Allen-Bradley Systems
