View tag definition information

Use the Tag List to view information for the tags that you have added to the trend chart.

By default, the Minimum Raw, Maximum Raw, Precision, Format, and Date Created columns are not visible in the Trend application’s Tag List. To show the columns, drag the right column separator of the Time Offset column heading to the right. Repeat this step until all columns are visible.

To view tag information

1. In the Tag List pane, scroll to the name of the tag for which you want to view definition information.

   

   The grid shows the following information:

   Name	Description
   Tag Name	The name of the tag within the Historian. If the data values are coming from the application server, the attribute reference is shown as the tag name. For application server attributes, you can also choose to show the hierarchical name along with the attribute reference.
   Description	The description for the tag.
   Number	The serial number of the tag.
   Server	The name of the server that contains the tag.
   Display Units	The displayed unit of measure of the tag value. Examples: seconds, psi, and lbs. By default, this is the same as the "Original Units", but when licensed and configured, you can select different display units.
   Original Units	The configured unit of measure of the tag value. Examples: seconds, psi, and lbs.
   Color	The line color of the tag.
   Minimum	The minimum value of the raw acquired value.
   Maximum	The maximum value of the raw acquired value.
   IO Address	The complete I/O address for the tag, including I/O Server name, application, topic, and item name.
   Time Offset	The amount of time that the trend curve of the currently selected tag will be shifted from the actual time.
   Source Tag	The name of the source tag that provides the source data for the replicated tag.
   Source Server	The name of the server that contains the source tag.
   Value at X1	The value that is displayed at Timer axis Cursor 1.
   Value at X2	The value that is displayed at Timer axis Cursor 2.

2. Select or clear the check box to show or hide the tag in the trend chart. This allows you to hide a tag without removing it from the list of tags.