How to connect to Wonderware?
- Install the connector via the connector which you downloaded from the TrendMiner download site. 
- Install the Wonderware Trend Client Application onto the Plant Integrations server. Copy the file "aahClientManaged.dll" to the Plant Integrations bin folder. The default location would be: C:\inetpub\PlantIntegrations\bin 
- Follow the instructions on How to connect to time series data sources? 
Important
The user account used to connect to the Wonderware historian must be a member of the 'aaUsers' security group created as part of the Wonderware client installation. If the user is not a member of the aaUsers group TrendMiner will not be able to connect successfully and the following error message will be shown: "Message": "Unable to connect to 'Wonderware' [datasource=<datasource url>] (Wonderware error received code [AuthenticationFailed] type [CustomError] description [Authentication failed])"
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The user that is used to authenticate also needs to be part of the 'Log on as a batch job' policy. If the aaUsers group is not part of the 'Log on as a batch job' policy, please make sure to add your user directly to this policy.

Note
Currently, TrendMiner does not support Write-Back or Backfilling function to the Wonderware Historian.