hello. 

I wonder if is it possible to backup a program from OP panel model TP177B 4 inch and load it on a OP panel model MP277 10 inch. and if it is how can i do that. I appreciate your help . thanks.

 Hello,

1-You need the Configuration program of the panel then you can change the panel type.

2-Uploading the Configuration program only possible, if the Transfer of the current project file from the configuration computer to the operating unit must be performed using the Upload option "Enable back transfer".

3-Backup/Restore with ProSave

It is not possible to load and edit a backup file in ProTool or WinCC flexible.The file can only be reloaded to the original or another panel via a restore with ProSave.