From the Project Explorer go to [Alarms/Events] - [Operation Log] and select [Enable]. For selected operations, the date and time when the operation is run as well as a description is recorded.
| Operation | Description |
| [Object Touch] | Log information about objects where a touch operation occurred. In addition to objects with touch operations such as switches and numeric displays, applies to objects set with touch triggers. If you want to log operations of a specific object only, clear this check box and in the properties of that object select the [Operation Log] check box. |
| [Screen Change] | Log information on screen changes. |
| [User Login Status] | When the security feature is enabled, log information such as when users log in or change passwords. |
| [Date/Time Change] | Log information when clock data on the display unit is changed. |
| [Language Text Change] | Log when changing the Language Text. |
| [Boot/Shutdown/Reboot] | Log when display unit is started up, run time is shut down or restarted. |
| [Hardware Configuration] | Log when displaying and working with the Hardware Configuration screen or Hardware Configuration object. |
| [Transfer Project File] | Log when transferring the project file. |
| [Web Viewer Login/Logout/Failed] | Log client operations associated with logging in and out of the HMI server. |
| [Monopolize Operation] | Log client and server operations associated with locking and unlocking monopolize operations on the server. |
| [Equipment Property Changes] | Log changes to equipment source properties, such as ScanOffStatus, IPAddress.CurrentValue, and UnitId.CurrentValue. |
For information about logged information, see the following.