In the folder Opcon\Images.OCP (Control plus V1) or Nexeed\Images.NXA (Control plus V2) on the image stick, there is a file with extension .cfg. You can open it with a text editor and see what image versions are on the stick.
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What version of the DataSetAccess service are you using?
What version of the ctrlX image and OPC UA server app are you using?
Is the connection to the OPC UA server extablished successfully?
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