Deleting a Remote Device

Deleting only a remote device is simple. However, there are several degrees of deletion possible. And deleting a remote device can affect several other aspects of your CygNet setup.

To (Only) Delete a Remote Device

1. Using CygNet Explorer, open the Device Definition Service (DDS).
2. Right-click the remote device you want to delete.
3. Click Delete.
4. If you are sure you want to permanently delete this remote device, click Yes.

To Delete a Fully Implemented Remote Device

1. Using CygNet Explorer, open the Device Definition Service (DDS).
2. Right-click the remote device you want to delete.
3. Click Delete.
4. If you are sure you want to permanently delete this remote device, click Yes.
5. In the Point Service (PNT), remove all points used only by the remote device.
6. In the Facility Service (FAC), delete the remote device facility for this remote device. Also delete any linked facilities that are no longer used because of the deletion of this remote device.
7. In the Value History Service (VHS), delete any unneeded history records for the deleted remote device.
8. Delete any other unneeded components related to the remote device. See Other Components to Delete.
9. In the Group Service (GRP), rebuild any groups that the remote device was a part of.

Other Components to Delete

There are many degrees of remote device deletion possible, depending on many variables unique to your setup and needs. Exactly what you delete (or alter) depends on your specific needs and setup.

The following are items you might need to address to thoroughly delete a remote device.

If you had these...		...you might want to delete these.
Device Template File(s)		If you are attempting to completely remove all trace of a remote device from your CygNet system, you might need to delete the remote device template file from the DDS.
Communication Device EIEs		If you created a dedicated communication device for the deleted remote device, you might need to delete it from the DDS.
Groups		If you are using groups and deleted a remote device that was in a group hierarchy, you might need to rebuild the hierarchy.
CygNet Studio Items		If you added or altered CygNet Studio controls to display information from the deleted remote device, you might need to delete or reassign the controls in CygNet Studio.
EFM Meters		If you created meters for measurement for this remote device, you might need to delete them from the measurement service.
UDCs/Points		When you created your remote device, you might have created UDCs for its data group elements. If these UDCs were used in points in the Point Service (PNT) and are no longer required, go to the PNT and delete them.
Facilities		When you created your remote device, CygNet generated a device facility. Delete it from your Facility Service (FAC). You might also have created linked facilities for this remote device that are no longer useful; also delete these from your FAC. Note: You must delete points before deleting facilities. Otherwise, the PNT regenerates facilities for the points for your remote device.
VHS Records		If you collected history on the point in the PNT for this remote device, you must also delete the appropriate VHS records.