In the previous lesson, we gave some instruction on how to upload a program from a PLC in the event that you don’t have a copy of the existing program. In this lesson we are going to discuss how to protect your programs from unwanted modification or viewing. The software package allows users to password protect PLC programs with three options. Option one is no protection, meaning that other users are free to upload, download, and modify existing programs. Option two is write only protection which prevents modification to programs but allows for uploading. And finally option three allows for read and write protection preventing both uploading and downloading. Let’s get started protecting your projects.