text: <s>[INST] How to compare online and offline project changes? How to compare onlinevproject and offline project. Today, I was online with PLC until lunchtime. After wgwn I try to online, I got a poup message  to upload/download  project. There is a change in online and offline project. How to know what changes or which routine or rung got changed before upload or download. [/INST] Upload a copy from the controller and save it, then use the Logix Designer Compare Tool. In the Compare Tool there also appears to be a Logix Definition Compare, which I think compares AOI definitions within the projects.\n </s>