ABB SM500F User Manual page 34

SM500F
Field mountable paperless recorder
Sample Rate Setting
More than 1 second, less than 4 seconds
More than 4 seconds, less than 8 seconds
More than 8 seconds, less than 12 seconds
More than 12 seconds, less than 28 seconds
Table 4.1 Sample Rates and Screen Intervals
32
Select to change the amount of data displayed on the screen. A longer screen
interval displays more data, a shorter screen interval displays data over a shorter
time period, but in more detail. In both cases, the full trace is preserved by plotting
the maximum and minimum samples for each display point.
Longer interval =
better overview
The screen intervals available in the menu are determined by the faster of the
primary and secondary sample rates set for the process group during configuration
– see Section 7.7.1, page 84. Unavailable screen intervals are greyed-out in the
menu (color recorders) or are blanked-out when selected in the menu
(monochrome recorders).
Table 4.1 shows the relationship between sample rate and screen interval for the
Vertical and Horizontal Chart views.
Note.

A 'Please Wait' message appears in the status bar while the recorder
retrieves data from storage.

Selecting a different screen interval does not affect the rate at which data is
sampled.

When in historical review mode, changing the screen interval causes the
time at the cursor position to change.
<1 second
More than 28 seconds
Maximum Screen Interval
Vertical Chart View
Up to 1 hour/screen
Up to 12 hours/screen
Up to 1 days/screen
Up to 2 days/screen
Up to 3 days/screen
Up to 7 days/screen
4 Operation
Shorter interval =
more detail
Horizontal Chart View
Up to 1.5 hours/screen
Up to 21 hours/screen
Up to 1.5 days/screen
Up to 3 days/screen
Up to 4.5 days/screen
Up to 12 days/screen
IM/SM500F Rev. Z