Specifies if Changes to the Tag made by Users and Operators in the run-time VIEW should be recorded to the Action Log. This is most commonly used for Setpoint, Output, and Auto/Manual status of important controllers where a written record id required.
The default Action Log contains the last 10,000 changes made to every tag in the system for which logging is enabled. The same Action Log shows operator Logins and Logouts. The last 5000 changes are written to file on the Hard drive in a FIFO method (first in first out). Optionally the Action Log can be recorded to Printer or Database.