Collect Data for an Indirect Variable

Before you begin

Create a collector instance using which you want to collect data for the variable.
Add the tag that you want to map with the variable.

About this task

To collect data of a direct variable, you must associate the variable with a collector instance and an existing Historian tag. The values for the variable are then collected by the collector instance and stored in Historian.

Important:

If the name of a tag associated with a variable in a model contains a period (.), you cannot import the tag while importing the model into a Historian system.
If you want to later delete the tag, first remove the mapping between the tag and the variable.

Procedure

Access Configuration Hub.
In the NAVIGATION section, select Model. Alternatively, you can select Systems, and then in the row containing the system in which you want to create a model, select , and then select Browse Model.
The Model section appears.
Under Object Instances, expand the object instance, expand Variables, and then select the variable whose data you want to collect.

The details of the variable appear in the DETAILS section.
Note: If the DETAILS section does not appear, in the upper-right corner of the page, select , and then select DETAILS.
In the DETAILS section, in the Tag Name field, select .

The Tag Selection: <variable name> window appears.
Select Search to search for tags.
Enter the search criteria, and then select Search. You can enter a name or a value partially or use the wildcard character asterisk (*). You can add more search criteria by selecting Add Attribute.
The list of tags are filtered based on the search criteria.
Select the collector tag that you want to map with the variable, and then select Apply.
In the upper-left corner of the page, select Save.

The tag is mapped with the variable. All the data that is collected for the tag is now stored in Historian (or in a cloud destination as configured in the collector instance).