Yokogawa DAQWORX - Manual (Page 126)

4-25 IM WX101-01E
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Index
Using Historical V
iewer
7. Select the alarm type.
Click the cell and select the alarm type from the list box.
Alarm All: Search all alarms.
Alarm 1, Alarm 2, Alarm 3, or Alarm 4: Search for the specified Alarm No. (alarm
level).
8. Set the alarm condition to be searched.
Click the cell and select the alarm condition from the list box.
Changed: Data position where the alarm changed from ON to OFF or OFF to ON.
Start: Data position where the alarm ON condition started.
End: Data position where the alarm ON condition ended (data position immediately
before the alarm turned OFF).
ON: Data position where the alarm is ON.
OFF: Data position where the alarm is OFF.
Searching Data Values
5. Select the group to search.
The operating procedure is the same as for “Searching Measured/Computed
Data.”
6. Select the tags to search.
The operating procedure is the same as for “Searching Measured/Computed
Data.”
7. Set the type of comparison. The comparison value is set in step 8.
Click the cell and select the type of comparison from the list box.
==: Search data that are equal to the comparison value.
>: Search data that are greater than the comparison value.
<: Search data that are less than the comparison value.
>=: Search data that are greater than or equal to the comparison value.
<=: Search data that are less than or equal to the comparison value.
!=: Search data that are not equal to the comparison value.
8. Set the comparison value.
Click the cell and enter the value.
The allowable range is -1E16 to 1E16. Exponential expressions can be used in
addition to normal ones (ex.: 32E+5).
Search Direction
9. Select “Opposite” (reverse direction) or “Sequence” (forward direction) using the
option button. The search direction depends on the number of cursors that are
displayed and the “Opposite” or “Sequence” setting as follows:
Number of Cursors Displayed Opposite/Sequence Search Direction
None Sequence From the first data point to the last
data point.
Opposite From the last data point to the first
data point.
1
(A and B are at the same position) Sequence From the cursor position to the last
data point.
Opposite From the cursor position to the first
data point.
2 Sequence From cursor A to cursor B
(A is in front of B on the time axis) Opposite From cursor B to cursor A
4.6 Searching Measured/Computed Data, Alarms, and Marks