New/Edit file import
This window configures the import descriptor used to import files from a remote controller station to a Supervisor station. File import is a function of the niagaraDriver module.
To open this window add a Files component from the niagaraDriver palette to the Files node in the station, double-click the added node and click New. To edit an existing file import record, click Edit.
In addition to the standard property, Enabled these properties configure this window.
| Property | Value | Description |
|---|---|---|
| Name | text (defaults to NiagaraFileImport) | Provides a name for the object.
Editing this property is equivalent to the right-clicking Rename command on the component. In this case, the object is a file import descriptor. You can
leave this value at the default and append numbers as needed to keep
the name unique. Editing this name does not affect the names of imported
file(s). |
| Execution Time | drop-down list with additional properties (defaults to Daily) | Configures a time trigger
that controls when to perform the function. Trigger properties are documented in the Getting Started with Niagara guide. |
| Execution Time, Time Of Day | hours minutes seconds (defaults to 2 am) | Configures when, during the
day, to import files. defines start and end times for the interval.
The default is 24–hours, that is, start at 12:00 am and end at 11:59
pm. |
| Execution Time, Randomization | hours minutes seconds (defaults to zero, that is no randomization) | Calculates the next execution
time and adds a random amount of time between zero milliseconds to
the calculated time. This option may prevent server flood issues if
too many file imports are executed at the same time. Default is zero
(no randomization). |
| Execution Time, Days of the Week | check boxes (defaults to all days) | Specifies the days of the
week to include in the function. |
| File Overwrite Policy | drop-down list (defaults to Checksum) | Selects the criterion
to apply to overwrite existing files upon any import execution: Checksum compares a checksum from the file being imported with the checksum from the existing file. If the app finds a difference, it imports the file again and overwrites the existing file. Last Modified compares the date and time stamps of the existing and imported files. Any remote files found with a more recent date or time overwrite the existing files. |
| Route To Station | text | As of Niagara 4.13 and later, optionally specifies a route of intermediate
station names (delimited by semi-colons) to reach the remote, reachable
station from which to perform the file import operation. If the field remains empty, the file is imported from the directly connected station (just like the pre-Niagara 4.13 behavior). If a station route is provided, the file is imported from the downstream reachable station (the final station name in the list) and transmitted through all intermediate stations, as indicated by the station route, back up to this station. In order to work, it requires active NiagaraNetwork connections for all intermediate stations specified in the route. |
| Files | File Selector | Selects the receiving target
and sending source file (or directory) pair(s). In this case, the receiving file (or directory) is in the local
system and the sending file (or directory is in the remote system. |
| Files, Local File | file path | Defines the location of the local file in the local station’s
file space. If you used a discovery job to add, this value matches the initially selected remote file value. If the local directories in the path do not exist, the station creates them upon import execution. |
| Files, Remote File | file path | Defines the location of the file to be imported from the remote station’s file space. This reflects the selected directory or file for the add job. Typically, you do not edit this value. |