Safety controllers matching the L7S and L6S architectures. Operating System Compatibility
: With firmware 20.12, users benefit from enhanced diagnostic tools and features, making it easier to identify and troubleshoot issues. This includes more detailed error messages, improved debugging capabilities, and enhanced monitoring of controller and I/O performance.
Note: Rockwell changed how software minor versions interact. RSLogix 5000 v20.04/v20.05 can open and support any controller firmware from 20.11 to 20.19. Operating System Compatibility