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Kepware Knowledge Base: Solution


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


Last Update: 2018/11/7

Problem:
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.

Solution:
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