LoggerNet Datalogger Support Software

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1. What might cause Windows to display a "Blue Screen of Death" when LoggerNet is running?

   Typically, blue screens are the result of bad device drivers. The Internet can be very helpful in tracking down the cause of blue screens. Copy down the codes displayed. Search the Internet for “blue screen” and the code to see what device is causing the crash. Often, an updated device driver will resolve the issue.

2. Why might the numeric and graph displays (accessed from the LoggerNet Connect screen) no longer update?

   If communication is interrupted or intermittent, LoggerNet may stop updating the Table Monitor, Numeric Display, and Graphs. When this occurs, a button on the display that is normally titled Stop (to stop the update) changes to Start, and the button must be pressed to resume the update. Also, check the update interval on the display, as it may be set to a higher value than expected.

3. Would there be any major problems with moving a data logger to another communications path while someone is using the LoggerNet software?

   As long as the same device is being moved from one communications route to another, all data collection pointers, filenames, etc., will be maintained with that data logger as it is moved.

4. Does the LoggerNet server have a specific limit on the length of a generic modem script?

   The LoggerNet server imposes no specific limits on the lengths of the generic modem scripts.

5. Where are skipped records for the data logger reported?

   Using the LoggerNet Connect screen, check the data logger Status table.

6. Is there any way to set a variable in the data logger using LoggerNet to gain manual control over when data is collected by the data logger?

   A program snippet, such as the one below, would work for this purpose. The Boolean variable can be toggled from the Ports & Flags screen in LoggerNet (accessed via the Connect screen), through the Numeric Display (also accessed via the Connect screen), or under program control.

   public StoreDataFlag as boolean

   DataTable (ConditionalTable,StoreDataFlag,100)

             Sample (1,counter,Long)

   EndTable

   When storing data conditionally, be sure to allocate a specific number of records in the size parameter of the DataTable() instruction. For more information, see the Data Table Memory Allocation Tutorial.

7. Can two different communications paths to one data logger be set up in LoggerNet?

   LoggerNet can be configured to have two paths to a data logger, simply by entering the data logger twice in the network map with different comms links. LoggerNet, however, treats them as separate entities, so it will try to collect all the data twice via the two separate paths if both are enabled. Some users have set this up where they use one route most often, and manually enable collection to the backup route if the main link is lost.

   An alternative to this scheme is to set up the backup route but not add the data logger. Then, if the main link to the data logger goes down, simply drag-and-drop the data logger to the backup route. After the main link is working again, the data logger can be moved again. This keeps data collection pointers for that data logger intact.

8. How can the station time be changed in LoggerNet?

   The station’s data logger clock can be set from the Connect screen. It can also be set from the Clock tab in the Setup screen.

9. Is there a way to set LoggerNet to download only the last x number of hours of data?

   On table-based data loggers, in the LoggerNet Setup screen, on the Data Files tab, there is the Collect at Most option that can be used to indicate how many records to collect. Based on how often data is stored, a calculation can be made to determine how many records represent x hours of data.

10. Does LoggerNet anywhere indicate the battery level of the connected data logger?

    For PakBus data loggers, the battery voltage is found on the Station Status screen. (The Station Status screen is accessed from the LoggerNet Connect screen.) For mixed-array data loggers, Station Status will display the lithium battery and the number of times the 12 V supply has dropped below an acceptable level. If the battery voltage is being read by the program, it may be available from the public table.