A download is destructive to the current state of the controller. It stops the processor, clears existing data, and replaces it with your new logic.
You're looking for information on downloading RSLogix 5000. rslogix 5000 download
While clicking the download arrow in RSLogix 5000 (or Studio 5000) seems simple, a rushed or improper download can shut down a production line, scramble your I/O configuration, or even put a controller into a faulted state. A download is destructive to the current state
Let’s walk through how to perform a safe, professional RSLogix 5000 download—and how to avoid turning your PLC into an expensive paperweight. While clicking the download arrow in RSLogix 5000
RSLogix 5000 rarely "bricks" a PLC, but it can make it inaccessible. The most common disaster is downloading a project with the or wrong slot number for an Ethernet module.