The answer lies in the installed base. Tens of thousands of SLC 500 and MicroLogix 1100/1400 controllers are still running critical processes 24/7. These controllers were programmed with various versions of RSLogix 500, but not all versions play nicely with modern operating systems or handle large project files efficiently.
Last updated: Q2 2025. This article is for informational purposes. Rockwell Automation, RSLogix, RSLinx, and Studio 5000 are trademarks of Rockwell Automation, Inc. RSLogix 500 8.10.00 CPR9 w master disk