long time to load the program or save changes with control builder
The control builder take long time to load the library and the applications in order to open the porject .
Also take some times to save the changes & download.
How to reduce the time.
I'm using the diagram editor
The bigger the project, the longer the time required.
Depending on your release, some versions of AC800M seem to take longer to download after many commissioning code changes have been made. If your plant has been through a long period of commissioning without restarting the controllers, then Cold Starting the controller can help in this case.
Otherwise, you need to break your project up into smaller seprate projects. As a very rough guide, if Control Builder is using more than about 500K memory in the Engineering Station, then your project is beginning to get quite big. If its using 1G of memory then it is probably at its maximum practical size.