In addition to pulling data from a PACS into XNAT, you may wish to push data from XNAT into a PACS. You might want to push the data you pulled from one PACS to another PACS, push data back to a PACS after making changes to it, or push data that came into XNAT from a non-PACS source. To do this, you simply go to the session page of the session you wish to send to a PACS and click "Send to PACS" from the Actions box on that page.
You will then see a view of the scans within that session and have the ability to check the boxes next to all the scans you want to push to the PACS (or check the box in the header row to select all scans). On the left side of the screen, there will be a "Select DICOM Destination to Export To" dropdown. This will show the Labels of all the Pacs you have configured in Plugin Settings that are set to "Storable".
After you have selected the PACS you want to send to and the scans you want to send, you should click "Send Selected Series to PACS" to initiate the send. That will take you to this page:
If you check your email, you should see an email appear soon informing you that the data has been successfully exported to the PACS.