Omega RD-MV100 Series, Руководство пользователя

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4-18
4.6 Using the Historical Trend
Operation Flow Diagram
DISP
DISP DISP
DISP
(Screen menu)
(HISTORICAL TREND)
Group channels
All channels
Expanding/reducing
the time axis
Moving the cursor
(Screen menu)
Memory information
(Sub menu)
ALARM SUMMARY
MESSAGE SUMMARY
MEMORY SUMMARY
LOAD EVENT DATA
LOAD DISPLAY DATA
DISP
: Screen menu,
: Sub menu,
: DISP/ENTER key, : Arrow keys
Procedure
There are 6 methods in displaying the historical trend screen.
• From the alarm summary. See section 4.5.
• From the message summary. See section 4.5.
• From the memory summary. See section 4.5.
• From [Load display data]. See section 9.3.
• From [Load event data]. See section 9.4.
• Recall from the screen menu. Described in this section.
Displaying the historical trend screen (from the screen menu)
Of the data being sampled, the display data existing before the execution of this
operation are displayed as a historical trend.
1. Pressing the DISP/ENTER displays the screen menu.
2. Select [TREND HISTORY] using the up and down arrow keys.
3. Pressing the DISP/ENTER key displays the screen.
To close the menu without switching the screen, press the ESC key.
Note
Even if the display data are not configured to be acquired to the internal memory (see section
8.11), the display data existing before the execution of this operation are displayed as a
historical trend.
Showing the all channel display/returning to the group display
On the group display, the channels that are assigned to the group are displayed (see
section 7.6.) On the all channel display, the waveform of all channels that are set to
display the trend (see section 8.10) are displayed over the current group display. See
the explanation in section 4.3.
This operation is carried out on the Historical Trend screen.
1. Pressing the DISP/ENTER displays the screen menu. ([TREND HISTORY] is
selected.)