In the Service Engine, data from already closed archives is written to the current, open archive capsule in the Historian.

This problem can occur:

• By project reload.
• If the PLC sends variable values with an external timestamp from the past. These values with a possibly very distant timestamp are saved in the current ARX file.

This problem has been fixed. Values that have already been archived and values with an external time stamp from a long time ago are no longer entered in the current ARX file.

To benefit from this fix:

• Update your zenon Software Platform to the latest build of zenon 12 or higher.