Export Variable Tags to an External Data Source
- Last UpdatedJul 18, 2023
- 2 minute read
The export feature allows you to export I/O device data to an external data source, specifying the destination and format of your choice (for example RSLOGIX driver). This file might then be imported into a third-party I/O device programming package database. Alternatively, you might use it as a backup.
Note: Exporting using the OPC driver is not supported.
The file to which you are exporting needs to already exist; otherwise the export will not work. You can choose to delete its contents before exporting, or you can leave it and create duplicate tags.
Note: The export tags feature is not yet supported by every database type. If you have existing links to any external data source, the linked tags will also be exported. As the structure of each type of external data source differs, some tag data might not be exported. This is determined by the format file for the I/O Device.
See Exported Tags for information about levels of support between Unity and Plant SCADA.
Note: Tag names greater than 32 Chars cannot be exported to Unity.
To export variable tags to an external database:
-
In the Topology activity, select I/O Devices.
-
On the Command Bar, select Export Tags.
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Complete the Export Variable Tags dialog box.
See the Export Variable Tags Properties below for a description of the information required in each field.
Export Variable Tags Properties
|
Property |
Description |
|---|---|
|
I/O Device |
The I/O device for which you are exporting tags. Use the menu to select an I/O device that has been defined using Plant SCADA. |
|
Database type |
The format of the data referenced by the external data source. |
|
External database (128 Chars.) |
A reference (128 characters) to the external data source to which your variable tags will be exported. This can be:
Note: This data source needs to exist before the export can be performed. |
|
Connection string (128 Chars.) |
Enter a connection string to provide connection details for the data source. This is similar to an ODBC connection string. For example: UserID = XXX; Password = YYY Not every data source requires a connection string. |
|
Remove prefix from tags |
Select this box to remove a known prefix from the front of the exported tag names. |
|
Tag prefix |
The prefix (8 characters max.) to be removed from exported tag names. |
|
Delete existing tags |
Select this box to delete any tags in the external database before exporting. Note: For the Unity driver, existing tags are not deleted, even if you select this check box. |