In the article found in Login PI 3 > Login PI 3 Configuration > Login PI 3 Eventlogger Configuration you can find how to install and configure the Login PI 3 eventlogger.
You can find the logs in the eventviewer of the system you have configured and check in the Applications and Services Logs folder for the LoginPI Events log.
NOTE: The eventlog can be empty if your environment is running without events!
There are a number of reasons an event is generated, here is a list of events that are possible and what their corresponding event number.
|Functional Events||Event Number|
|Connection Initialization Timeout||200|
|Launcher Capacity Exceeded||600|
|Account Capacity Exceeded||700|
|Application Threshold Exceeded||800|
|Session Discovery Error||1000|
|Latency Threshold Exceeded||1200|
|Login Threshold Exceeded||1300|
|Latency Measurement Failed||1700|
|Login Time Measurement Failed||1800|
|Technical Events||Event Number|
|Database Connection Error||1600|
|Technical Event Email Request||1900|
|Technical Event Email Failure||2000|