Use the Tag
Properties dialog to view the history for a selected
tag. IWS disables
this command if there are open trend worksheets. Before using this
dialog, you should have already created the trend groups.
Note: History
does not support string-type tags. See
Recipes folder for
information about storing string values.
Integer and Real Type History
From the
Tag
Properties dialog, enable history for integer and real-type
tags as follows:
- History Enabled
checkbox: Click (check) to enable storage of the selected tag value
samples.
- Group Number
field: Specify the group number to which this tag is
associated.
- Log Dead Band
field: Specify a value sample taken when the variation value is
equal to, or greater than, the Log Dead
Band.
Boolean Type History
From the
Tag
Properties dialog, enable history for Boolean-type tags as
follows:
- History Enabled
checkbox: Click (check) to enable storage of the selected tag value
samples.
- Group Number
field: Specify the group number to which this tag is
associated.