I like to ask what are the possible solution to upload OP277.
I already tried using ethernet and Profibus but during uploading when it is about 99% the device pop up an error that
, I retried many times and same thing when the uploading percentage is about 99% it pops up the same error." Cannot copy back-up from flash file"
I tried to upload also using back transfer of wincc flex but it cannot locate the .pdz because the enable back transfer is probably not checked during downloading.
Please help as this needs to be finished already.
Thank you very much in advance.