Vaisala vLog 4.5 - Manual (Page 58)

Transferring Data
52 © 2011 Vaisala Canada Inc
Transferring Data
When you transfer data from a logger’s memory, vLog
creates a copy of the data and stores it on your PC as a
logger file.
Logger transfers can be performed either individually (logger
by logger) or in a batch (by selecting a range of COM ports
using vLog VL).
Data from secure loggers (VL loggers) is stored in secure
logger files. Data from non-secure loggers (SP loggers) is
stored in non-secure logger files. All logger files have the .spl
extension, logger files from SP loggers are non-secure and
can be opened in vLog SP or vLog VL. Files from VL loggers
are secure and can only be opened in vLog VL.
After inserting a logger file into vLog, you can view the
information as a graph or as a tabular report.
VL Data Loggers (vLog VL)
During the data transfer process, vLog generates a Logger
File Creation Report and a unique Logger File ID Number for
VL-Series loggers. The Logger File ID Number also appears
in the Logger file and on the graph and provides a convenient
way to track the data from the logger to the final Graph file.
The transfer process does not affect or delete the data in the
logger.
Before transferring data, you may want to set the transfer
preferences, and ensure that you have write permission to
the folder on the PC where you are going to save your
transferred data as logger files.
Setting Transfer Preferences
There are a variety of logger configuration preferences
available to you:
• Configure the default file name format for logger files to
help manage file storage.
• Configure vLog VL to display a Logger File Creation
Report after the transfer. This report displays all the details
of the transfer. It can be printed and it provides a secure
and verifiable link between logger files and printed