Add help for RT130 log files

documentation/01 _ Table of Contents.help.md

@@ -26,7 +26,9 @@ The home button can be used to return to this page at any time.
 
 + [Gap Display](09%20_%20Gap%20Display.help.md)
 
-+ [TPS Dialog](10%20_%20TPS%20Dialog.help.md)
++ [RT130 Log Files](10%20_%20RT130%20Log%20Files.help.md)
+
++ [TPS Dialog](11%20_%20TPS%20Dialog.help.md)
 
 + [Display Data Point Info](12%20_%20Display%20Data%20Point%20Info.help.md)
 

documentation/10 _ RT130 Log Files.help.md

+# Reading RT130 Log Files
+
+SOHStationViewer inherits the ability to read and generate log files from
+logpeek.  Log files contain the state of health data,  event information,  and
+(optionally) mass-position data of an RT130 data set.  They are useful for
+remote troubleshooting of RT130 stations due to the ease of sending them over
+the internet.  You can generate log files using logpeek,  rt2ms,  or this
+program.
+
+---------------------------
+---------------------------
+
+## Reading RT130 log files
+
+In order to read RT130 log files,  check the log checkbox next to the file
+search bar.  After doing this,  the program will display a list of log files.
+You can read a log file the same way you read a directory.  Currently,  only
+files with the .log extension are counted as log files.
+
+<br />
+<br />
+<img alt="Search results" src="images/log_files/toggle_log_checkbox.png"
+ height="240" />
+<br />
+
+When reading log files, the option to read from memory cards is disabled. 
+
+<br />
+<br />
+<img alt="Search results" src="images/log_files/disabled_from_memory_card.png"
+ height="280" />
+<br />
+
+The list of log files can be filtered using the search bar.
+
+<br />
+<br />
+<img alt="Search results" src="images/log_files/search_log_files.png"
+ height="240" />
+<br />
+
+---------------------------
+
+## Generating RT130 log files
+
+RT130 log files can be generated using the Search Messages dialog.  This is
+accomplished by saving the SOH table of an RT130 data set.  The Search Messages
+dialog saves a table in a file with extension .log,  which means that the saved
+log file will be recognized in SOHStationViewer by default.  For information
+about saving a table in the Search Messages dialog,  refer to the "Search SOH n
+Log" section.