Display The Graphs - Emerson Dixell X-web300 Operation Manual

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.

3.7.1 DISPLAY THE GRAPHS

With "Data" menu you can access Graphs section, then select the desired controller from the filter lists of the
Device typology. After selecting the controller, the screen will show all the available data which the
instrument is provided with.
The first information about the archive shows into "Available Interval" the first and the last recording date,
while the "Select Interval" includes the period you can decided to show.
If necessary, modify the Select Interval period.
Longer is the time interval to show, longer the loading time needed to show the data graph.
For a first analysis select a time period not so wide but centred on the target of your interest, this ensure
higher graph precision. You can also act on "Graph Density" parameters to decide if you need all data
samples. This feature is very useful if you are connected via modem at a slow speed.
You have many rows: Analog Input – Setpoint – Digital Input – Output Status – Devices Staus - Alarm.
The number of the rows depends on the controller type.
For each of them you can graphs as many values as you want. The only limitation is 3 analog values and
2 digital ones.
For each selection is possible to decide the colour of the line that will be represented.
It is also possible to group the analogue inputs into a unique graph or to display them into separated
ones. For example if you want to display all data using only one graph, select for each value AG1 from
the roll-down menu, then in "Graph labels" write some words reminding you the meaning of the graphs.
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