With the online restart facility, you can change your project configuration and examine the results in the runtime system without having to shut down CitectSCADA. You can update your system while it is running.
Note: If you’ve configured CitectSCADA to use multiprocessor support, it is recommended that you use the Runtime Manager instead of the restart facility. The runtime manager allows you to restart different processes individually, whereas the restart facility will restart every CitectSCADA processe on the machine.
The time taken for the system changeover depends on the size of the project and the extent of the changes to the project: