Log Options...
Selecting Log Options... from the Logging menu displays the "Log Options" dialog box, in which you can set the parameters for how PowerChute plus logs event text and UPS data. You can also open the dialog box by clicking Options... in either the "Event Log" or "Data Log" dialog box.
Overview of the Event and Data Logs discusses the log files.
Configuring the Event and Data Logs shows the "Log Options" dialog box and explains the parameters.