There may be an occasion that you have been hired by a company to make changes to an existing plant process but they don’t have a copy of the PLC program or you had a computer that the hard drive failed on and you have lost all of your data including past PLC programs, what can you do? Most PLC manufacturers have the ability to obtain a program or upload that program from a running PLC. In this lesson, we are going to walk you through the process of uploading the program from an active PLC. Lets get started on this lesson to find out how we can pull the program from our PLC.