LOGGERNET Datalogger Support Software

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1. Can the LoggerNet software used for a CR10X be used with a CR850 or CR800?

   LoggerNet version 3.3 and newer supports the CR10X, the CR800, and the CR850.
2. 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.

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. 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.

5. If LoggerNet is running on a server behind a firewall, which firewall port needs to be opened to connect to data loggers that each have a GPRS modem and a fixed IP address?

   If LoggerNet will be initiating all connections (all outbound), there should not be a need to open firewall ports.  If there will be call-backs from the modems, by default, the port that LoggerNet listens on is 6789. This, however, can be changed with the IPPort command line parameter.

6. Can the CRBasic Editor be purchased without LoggerNet, or do they have to be purchased together?

   The CRBasic Editor is included with LoggerNet, PC400, and RTDAQ, which are software options available for purchase. The CRBasic Editor can also be purchased separately: www.campbellsci.com/crbasiceditor. 

   The CRBasic Editor has a number of features, such as syntax highlighting, context-sensitive help, a program precompiler, etc. However, the CRBasic Editor is not required to edit a data logger program. All data logger programs are simply text files that can be edited with any editor capable of handling plain text, such as Notepad, WordPad, vi, or Emacs. Caution should be used, however, editing a program in a text editor. Coding mistakes can make the data logger program run incorrectly or not at all.

7. How does LoggerNet handle data collection when the data logger stores data to a CompactFlash card?

   LoggerNet collects data from the data logger first. If there is additional data on a CompactFlash card, LoggerNet collects that also. Nothing special needs to be set up in LoggerNet to have this occur.

8. Can LoggerNet perform scheduled data collection on two data loggers at the same time?

   Yes, but only if the communications links to the data loggers allow simultaneous communication. For example, two mixed-array data loggers can be contacted simultaneously using two different COM ports; however, if they are accessed via the same COM port, LoggerNet can connect to only one at a time.

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

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

10. What might cause trouble downloading data from a data logger using LoggerNet with a USB-to-serial cable?

    First, make sure the most recent version of LoggerNet is being used. (Improvements were made between versions 4.0 and 4.1 that resolved some issues with LoggerNet and some USB-to-serial cable drivers.) Next, ensure that the most recent drivers from the cable manufacturer are being used. Often, newer drivers are developed for devices after they are released, and the software shipped with those devices is not updated. The drivers can be downloaded from the manufacturer's website.