Going online to the controller means you are going to communicate to it and download your current project. In this case, it is the project you’re developing.
1. Select Online > Login, or use the Login Icon().
Note: If this is your first time online, a CODESYS warning may ask you to confirm the download.
2. Select Yes to continue
The CODESYS Development System window is Online with the Program Loaded, and in STOP mode, as shown in the red box. The program is not running.
The next step is to scan the I/O and determine what modules are installed on the groov EPIC controller chassis so you can the groov I/O modules to the project.