Yokogawa FieldMate - Manual (Page 112)

<E Specifications Common to FieldMate Basic and Advance>
E-62
IM 01R01A01-01E 9th Edition : May 31, 2013-00
 Trend Graph Display/operation when Clicking the Start Trend Button,
Change Update Duration Button, and Resume Trend Button are
Performed
 Switching between Periodic and One Shot Mode
• Selecting Periodic from the Mode menu toggles between the modes. The mode can be
switched from both the Diagnostic Information tab and the Trend Information tab.
• The following shows the trend graph, data acquisition, and internal buffer when the scan
mode is switched from periodic to one shot while the Trend Information tab is displayed.
Trend graph: Stopped
Data acquisition: Stopped
Internal buffer storage: Stopped
• The following shows the trend graph, data acquisition, and internal buffer when the scan
mode is switched from one shot to periodic.
Trend graph: Displayed
Data acquisition: Resumed
Internal buffer storage: Cleared
 Stopping/resuming Trend Operation
• The following shows the trend graph, data acquisition, and internal buffer when Trend Pause
is selected from the Mode menu to stop trend operation.
Trend graph: Frozen
Data acquisition: Continues
Internal buffer storage: Frozen
In other words, the graph is not updated while operation is stopped.
• The following shows the trend graph, data acquisition, and internal buffer when Trend Pause
is selected from the Mode menu to resume trend operation.
Trend graph: Displayed from time resumed
Data acquisition: Continues
Internal buffer storage: Stored from time resumed
 Setting Update Duration
 Select Update Duration from the Setting menu when the menu item is enabled. The menu item
is only enabled when periodic mode is set.
Trend Graph Display and Trend Data
(1) Changing Update Duration
Trend graph: Display is refreshed
Internal buffer storage: Cleared
(2) Stopping trend operation
Trend graph: Stopped
Internal buffer storage: Stopped