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The Allen-Bradley 1609 UPS Driver Automatically Generates Tags for Objects that Do Not Exist in the Device

Last Update: 11/7/2018

The Allen-Bradley 1609 UPS driver automatically generates tags for the device; however, when some of those tags are read with a client application, they return bad quality. An error is posted in the server's Event Log that the object does not exist.

Possible Cause:
By design, the driver is hard coded with the Object Identifiers (OIDs) for all possible configurations of the Allen-Bradley UPS 1609. The availability of those OIDs depends on the features that are configured or enabled in the device.

Use the OPC Quick Client to identify the OIDs that are not available in the device, and then delete them from the project.

Note: Once the device notifies the server that an OID does not exist, it will no longer requested by the server for polling.

Related Products
Allen-Bradley 1609 UPS