ControlLogix Redundancy 24.052 Available

Early last week while consulting for a client over WebEx, I came across the fact that last month Rockwell had released redundancy firmware version 24.052 for the ControlLogix L74.


If you're familiar with Rockwell and ControlLogix, then you probably know the .5 versions of firmware represent “redundancy” versions, with 24.052 being the first redundancy release supporting Studio 5000.

v24-Redundancy-fiThat said, the only ControlLogix processor line that currently supports version 24 is the 5570 (L7) family, as the 5560 (L6) family version support ended at v20, and the new 5580 family support starts at v28, for which there is no redundancy firmware currently available.

So what's new?

The release notes for v24.052 state the following changes have been in comparison to the previous release:

  • Extended tag properties, rung comments, and description supported
  • Updated FTAE alarm state and subscription model support
  • Support for up to 3000 active FTAE alarms and bursts up to 250 simultaneous alarms
  • Support for up to 1000 programs
  • Add-On Instruction hardware abstraction support
  • Program parameters support (new features added to what was previously called Program Tags)

For the complete list of what's supported in v24.052 of ControlLogix firmware, head over to Rockwell's PCDC website and grab yourself a copy of the release notes.

And for step by step instructions on how to download ControlLogix firmware, see our previous post here:


Shawn Tierney
Automation Instructor and Blogger

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Shawn Tierney

Shawn began sharing automation news and know-how online in 1996 when he launched his first BBS. Then in 1999 he moved to the internet launching, which he later renamed In 2013 he moved his automation efforts to a new website,, which has since become the most popular independent industrial automation blog on the web.

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