We have to replace our S5-100U(CPU103 because it is dead.

The programm we have is a prj.-File and some awl.-Files.

But our PG 720 doesen't load those files. We tried it with STEP 5, Simatic Manager and V3.2 STEP 7 MicroWIN.

So which Software do we need?

Upload the files.

But you can migrate your project from s5 to s7 and your CPU from s5 to s7.