Starting Historian clients once
In order to make tags available for browsing, you will have to startup Wonderware Historian Client Query or Wonderware Historian Client Trend.
This needs to be done only once. Then the tags will be made available for Alpana.
Enabling SQL login to Historian
Alpana requires SQL authentication to login to Historian.
In some versions, those are disabled by default and need to be enabled or created.
See your Wonderware Historian documentation for more details