Section 11. Utilities Installed with LoggerNet Admin and LoggerNet Remote
Once the data tables to be exported are specified, the user selects an output
socket port and the export utility will begin “listening” for a request from a
remote application to send data. When the connection to the application is
established, data export is initiated.
The options that determine the operation of Data Export are set from the dialog
box opened from Data Export’s Edit | Options menu item. There are five
options as described below:
Listening Port Number – The Listening Port Number is the port number that
Data Export will monitor for a request for data. The default port number is
1200; this can be changed to any valid four-digit port number.
Starting Options – There are two options for choosing what should be the first
record exported when data export is first started. If the Get All Data option is
chosen, Data Export will attempt to export all available data from the data
cache for the specified datalogger tables. When Start with Newest Record is
chosen, export will begin with the most recent record. In this instance, no
historical data will be exported from the data cache. Note that this setting
applies only to the first time data export is initiated for a table. Subsequent data
export sessions will begin exporting after the last known exported record.
Collection Options –Holes are discontinuities in data that is being collected
via data advise. There are two options for Data Export behavior when a hole is
encountered. If Wait for Any Holes is selected Data Export will wait until data
holes are filled or become uncollectible before exporting the next record. Thus,
the utility attempts to export data in record order. If Collected Order is
selected, Data Export will export records as they are collected by the
LoggerNet server. With this option, it is possible that data records are exported
out of order.
Data Format – This is the format in which the data should be exported. If the
RTMS Format option is selected, the data is formatted to be received by an
RTMS compatible computer. RTMS (real-time monitoring software) is a
format developed by CSI for communication between OS/2 operating systems
and table-based dataloggers. If Standard Format is selected, the data is
formatted as an ASCII comma separated record format that includes header
information. The protocols for both formats are described in later in this
section.
Resending Options – If a message is exported and there is no response or an
incorrect response is received from the remote application, Data Export will
resend the data. The Resending options are used to set the time interval on
which the data will be resent (Time to Wait before Resending the Data) and
the number of times Data Export will attempt to send the data and receive a
valid response (Number of times to Resend the Data).
You can run multiple instances of the Data Export application by specifying a
different initialization directory for each instance. This is done by adding the
directory information to the command line of the shortcut that starts the
application. An example of this command line would be:
c:\Program Files\…\SocketDataExport.exe directory pathname
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