Differences

This shows you the differences between two versions of the page.

--- ecmlink101datalogging [2009/05/14 09:02]
twdorris
+++ ecmlink101datalogging [2009/05/14 09:14]
twdorris
@@ Line 11: / Line 11: @@
 ==== Capturing to disk (and screen) ====
-"Capturing" (F12 or ECU->Start capture) does the same as streaming, but also writes the data to a log file automatically.  The name of the log file it creates is determined by the Filenames preferences (Edit->App preferences).
+"Capturing" (F12 or ECU->Start capture) does the same as streaming, but also writes the data to a log file automatically.  The name of the log file it creates is determined by the Filenames preferences (Edit->App preferences).  Pull up this dialog and hit the "?" at the bottom for a lot more information on how filename preferences can be configured.
 {{  http://www.ecmtuning.com/images/forums/v3screenshots/appprefs.png  }}
+===== What's in a datalog =====
+When you capture a datalog, the file will contain the data logged from the ECU as well as all the settings and direct access configuration data that was in place at the time the datalog was started.
+**NOTE:** With a V3 ECU, it's possible to change ECU settings while a datalog is being captured.  Please be aware that doing this can cause a lot of confusion when reviewing the log file because it will not be clear which settings are in place at any given moment in the log.

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