em/stat_log_timeout is a SAP Parameter attribute which is used to control Write buffer onto disk all ... minutes information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
In the SAP memory management system, the sizes of user contexts are
collected for statistical purposes. This parameter specifies the time
interval with which the sizes are written to a file. Value 0 means that
the system does not write a dump.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.