Assign Tag Links

Tags created during process modeling have a predefined configuration. Before exporting these tags to the InTouch HMI or communicating with external control system hardware, you might need to modify the configuration.

Note: If you are working on a development client, you must install an instance of the ArchestrA IDE on that client so that you can browse to Galaxy objects and attributes.

To assign tag links

1. Open the Tag Linker main dialog box.

2. Select the required tag names.

   

   Each area has a check box to the left of the group box. Each check box enables the use of the particular area. If you select only one tag, all these check boxes are selected.

   In Single or Multiple selection mode (accessed through the View menu), clearing a selection check box results in the associated configuration parameters being ignored when you click the Apply button. This limitation is useful for changing only certain properties on multiple tags. When you use Multiple Selection and attempt to change the configuration settings for more than one tag, you must enable both the check box and the setting within the area.

   WARNING! When you are in multiple selection mode, ensure that your modifications are appropriate for all selected tags. Changes cannot be undone.

3. In the Item Definition area, configure parameters that are related to the tagname and properties:

   • Click Item to provide a specific location of data, such as a tagname or a PLC register. If your Access Name is Galaxy, you can browse to select the object attribute.

     Item names cannot exceed 128 characters. This limitation also applies to Application Server user-defined attribute (UDA) names.

     Note: The Browse button is enabled only when you click Access and select Galaxy in the Access Name dialog box.

     Optionally, you can type the complete hierarchical name of the attribute.

   • Click Use Tag Name if you want the actual name of a tag to be used in the export or when the tag names follow the ArchestrA naming convention. The tag is linked to an Application Object attribute of the same name.

   • Click AVEVA Batch Management Memory Tag if there is no external source for the tag. This option also initializes the value of the AVEVA Batch Management Memory Tag for analog, discrete, or string tag types as specified in the Initial Value box. If you do not enter a value, the initial value is set to 0 for analog tags, 0 (Logical False) for discrete tags, or empty (null) for string tags.

4. To assign one of the Access Names that you created using the Access Editor dialog box, click Access.

   The Access Names dialog box appears, in which you can select the appropriate access.

   

5. Select the Export Tag check box to export the associated tag. Not all tags from the AVEVA Batch Management model are necessarily required for an InTouch application. If a tag is going to be used within the InTouch application and is contained in the InTouch tagname dictionary, you must select the option. If a tag is not required, you can clear the check box.

   Note: Exporting tags that are not required in the InTouch HMI is acceptable and perhaps convenient. However, batch utilities constantly monitor and manage AVEVA Batch Management and InTouch processes. A high quantity of unnecessary tags can degrade overall system performance.

   For more information on alternatives to exporting tags from AVEVA Batch Management and loading the tags into InTouch, see "InTouch Batch Tag Browsing and Referencing".

6. In the Scaling Options area, configure the scaling for analog tags.

   • In the Min Raw and Max Raw boxes, type the values associated with the values output from a source such as a PLC.

   • In the Min Scaled and Max Scaled boxes, type the scaling factors associated with AVEVA Batch Management.

7. In the Data Type area, set the type of numeric data with which an analog tag is associated. The options are either Float (floating point) or Integer.

8. Click Change.