If the data has been sent successfully
to WinCC, the parameter "DONE" of the AR_SEND block is set to "1".
In WinCC there is no way of checking whether the data has been
stored successfully in the archive.
If the data has its own time stamp in AR_SEND, it is also stored
chronologically in WinCC. Detailed information on
parameterizing the AR_SEND block is available in the WinCC
Information System (WinCC Online Help) under the keyword "AR_SEND:
Data Block Structures - Structures and Parameters". Note the
examples given there.