The default shortcut is Ctrl + F8.
The Online > Logout command affects a log out of the application. It disconnects the programming system from the target device (controller or simulation target) and thus changes into the offline mode.
If the command is called from the Online menu, the active application is affected.
If the command is called from the contextual menu when an application object is selected, then the selected application is affected, no matter which application object is active.
NOTE: The layout of EcoStruxure Machine Expert views can change when you disconnect from the target device: it is automatically switched from the Online perspective to the Offline perspective that had been used before login.