Currently featured on, the new Compact GuardLogix 5370 is now available and in factory stock.

AF15-Compact-GuardLogixThese new “safety” programmable controllers are essentially a “modern” version of Rockwell's Compact Guardlogix line, now based on their popular 5370 architecture.

Users who migrate to these new models gain a USB port, SD Card slot (SD card included,) Dual Ethernet Ports (with DLR Support) and an embedded energy storage device (no battery needed,) all of which is also found in the standard 5370 CompactLogix processors.

These are also the first Compact GuardLogix processors which support Studio 5000 Logix Designer, currently with firmware available for version 28.

However, when migrating from the original Compact Guardlogix (L43S, L45s,) users will no longer have a built-in DB9 Serial Port, Keyed Run Switch, CompactFlash memory card slot, or support for RSLogix 5000.

More details about these three new models can be found in the below table:

PN# ESP* Availabiliy** Stnd Mem Safe Mem Max Local IO Max Eth. Nodes
1769-L30ERMS $3,609 Fact. Stock 1mb .5mb 8 16
1769-L33ERMS $4,415 Fact. Stock 2mb 1mb 16 32
1769-L36ERMS $5,357 Fact. Stock 3mb 1.5mb 30 48


Note: ESP* represents an “estimated street price” and may not represent the price your company will pay.

Note: Availability** represents the vendor's stated availability of the products at the time this article was written.

For more details about Rockwell's new Compact GuardLogix, check out the below documentation:

Credit Due: Special thanks to our reader Jeff S. for sending in a tip about this product's pending release, as well as the availability of its documentation in Rockwell's Literature Library. Thanks Jeff!


Shawn Tierney
Automation Instructor and Blogger

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  1. Thanks for the info, I was actually just about to buy a L43S. It will be nice to finally move on from 20.03. Will they work with versions lower than 28? BTW the link for the Manual and the safety reference are the same.

    • Good morning Richard,

      First, thanks for finding my typo! I’ll fix it now 🙂

      As far as version support, the only firmware I could find online was version 28, so as of today it looks like that’s the only option.

      And I haven’t seen them add previous version support to new products in the past, but I haven’t heard any specifics either way.

      Thanks again,

      Shawn Tierney

      Have a question or comment on this article? Join our community to take part in the discussion! You'll also find all of my courses at (795 views)

    • I only see v28 as well. The non-safety versions go from 21-28 (and beyond).

      P.S. Check out v20.04 and you’ll have compatibility for 20.01 and 20.03 applications. It works great if you have to support both versions. I believe there is even an article about it on this blog.

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