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Trace Logging OPC HDA Server Communications

Note: The Trace Logging feature is designed for use by support personnel only to assist in diagnosing issues with the Historian OPC HDA Server.

The Trace Logging feature logs communications with the Historian OPC HDA Server into an html file. Advanced users can use this log file to trace a history of communication events dealt with by the Historian OPC HDA Server. The Trace Log file is a simple html file and is placed in the Logfiles folder. By default, this is C:\Proficy Historian Data\LogFiles.

The Log file contains the following information:

The date and time when the event occurred.
Errors and Exceptions parameters passed by the clients.
The status of the client.