The primary source is the Product Compatibility and Download Center (PCDC).
: Navigate to the Rockwell Automation Compatibility & Downloads site. rslogix 500 version 81 download install
Licensing & Legal Notes
Open RSLinx to "Configure Drivers" (e.g., EtherNet/IP or RS-232 DF1 Devices). Activation: FactoryTalk Activation Manager The primary source is the Product Compatibility and
: Search for "RSLogix 500" or "RSLogix Micro" in the PCDC. From the version dropdown, you can select historical versions, including Required Files you can select historical versions