Siemens Sinumerik 840D sl Function Manual page 265

05.07
Special features of the auto archive function
If workpieces are included in the auto archive run, they are uploaded to the
machine directory even if the search level contains identical workpieces (but not in
the machine directory). The reason for this is that half-finished workpieces are not
created in the upload directory.
Depending on the version strategy (see "Configuration"), the archived NC data is
either released or not. Its version is then determined. To allow the auto archive
function to run without any user intervention, the "Delete Version Dialog" is not
displayed. The version strategy is, therefore, converted automatically from 2  1;
from 4  3 in the DNC Auto Archive function.
The configuration is performed via a combination field. The following directories are
available:

Machine

Group (upload directory: The higher-level group of the machine)
Note
DNC creates administrative data for uploaded files. All the automatic mechanisms
for version management and the release / trial cut identifiers in DNC apply here.
The auto archive run also sets the auto archive identifier of archived files to 1. If
the machine directory already contains NC data with the same name and type,
the auto archive identifier of this data may be reset to 0.
If the machine upload directory contains NC data that was not found on the
machine, the auto archive identifier of this data (which was previously released or
assigned auto archive ID 1) is set to 2.
The auto archive identifier for the NC data is only set/reset within the machine
directory because it could otherwise be set/reset by more than one machine,
which means that the assignment would no longer be clear.
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Motion Control Information System DNC (FBDN) - 04/10 Edition
DNC Plant/DNC Cell (FBDN1)
12 Auto archiving
FBDN1/12-267