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XWEB5000 Operation Manual
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3.6 DATA MENU
In this menu you can find all the web pages that allow the final user to interact with the stored data
inside XWEB hard-disk. Moreover the user can builds graph. The maximum length of time of the stored data is
2 years. After this period the datalogger will be overwritten in FIFO format.
3.6.1 DISPLAY THE GRAPHS WITH XWEB
You can access data information from the roll-
down menu “Data” in the home-page
The data archives are organised in two separate structures:

Main Graphs

Circular Graphs
Main Graphs is a file containing all the instrument data recording, the time interval used for these recordings
is defined into the category “Recording interval”.
This archive grows time by time depending on the number of instruments and it can become very large
occupying the available memory contained into the server Hard-disk.
Circular Graphs are independent and reserved to each device.
They are in FIFO format (First In First Out) and the maximum duration is 48hours.
Under this archive it is possible to explore only the last 48 hour of the whole information recorded before the
date/time of the request.
The circular archive logs data with a very short interval time, faster than the main archive so as the data
consulting can reveal much more information of the functioning status.
This sampling time depends on the number of instruments connected to the RS485 and the number of the
resources recorded.
The home page of the
system show the average
cycle time to complete the
reading
of the whole
instrumentation connected to
the XWEB.
This time is pretty equivalent
to the sampling time used by
the
circular archive log
function.
The graph structure and the procedures are the same both
for Circular Graphs recordings and Main Graphs recordings
.

Select which instrument value to show
From the “Data” menu, select if you want to display the “Main Graph” or the latest 48 hours or the “
Circular Graph”.
Then, select the desired device from the filter lists of the Device typology and the device list.
After selecting the instrument, the screen will show all the available data which the instrument is provided
with.