dear All i am using s7 400 & wincc at my plant i want to archive data in different time of the day ...what i have to use in my programming to archive data at specific desired time
WinCC can archive values dependant of an event.
Look for WinCC manuals in the under SIMATIC/WinCC/WinCC information system. Search for Archiving or Acyclic Process Value Archiving or Process controlled archiving.