Data Log Viewer Component (v2.0 and v1.8) SECTION 11 Data Logging
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11-4-3-1 Features:
• The Data Set viewed is the name passed as an argument with the script
function, or a user-selected Data Set.
• On start-up, a dialog box allowing selection of traces to view from the Data
Set will be shown. Up to 10 analogue traces and 50 digital traces may be
shown at once. Alternatively, script parameters can be used to
automatically select the traces to show.
• On display, the viewer displays:
• the latest data file for this Data Set
• the X axis set to the Data Set's period
• Y Axis set to full scale for the first trace.
• The selected analogue traces are shown overlaid.
• Boolean points are displayed in a separate view
• The X Axis shows true Date and Time, as the local time on the logging
system. Remote analysis within different time zones will show the same
dates and times. Logging of local time means adjustment of PC time and
daylight saving are handled.
• Key shows trace colour, name, and value at the cursor. Selected trace has
a ">" before the name. Clicking on other trace details selects other traces.
• Scale shows Minimum value, Maximum value and scale label of selected
trace, with intermediate scales.
• A cursor allows data to be read off the graph. Pressing Ctrl and cursor
keys allows moving between logged data.
• A Zoom In and Zoom Out facility (Time and Range), plus X & Y axis
scrolling, are available.
• 'Previous' ( ) and 'Next' ( ) buttons load data files for the previous and
next time period.
• The 'Refresh' button reloads the file from disk.
• A 'Live' option is used to show the latest data, and keep it up to date.
• Data can be exported to CSV files or to text.
• The current screen can be printed, or print previewed, in colour.
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