This tool allows the user to view and select the desired BACnet priority level when writing a value. If the BACnet object supports a priority array, all available priority levels will be displayed for selection. If the object does not support a priority array, only a single input field will appear. In this case, the most recently written value will override any previous value, last write wins.

This tool is also useful for troubleshooting write conflicts. By reviewing the priority array, users can quickly tell if something else is writing at a higher priority or replacing their values.

1. Navigate to the DB Builder application located under the System Integrator section.

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2. Inside DB Builder, open the DB Builder Tree.

3. Select a writable BACnet point from the tree.

4. After selecting the point, click the Tools icon located in the top‑right corner.

5. A Tools pop‑up window will appear. From the list of available tools, select BACnet Priority Array.

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6. A new window will open displaying the point’s current priority array configuration and its associated values.

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   This view indicates that the object does not support a priority array.

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7. To modify an entry, open the dropdown labeled Select a Priority to Edit at the top of the window.

8. From the dropdown, choose the priority level you want to modify, then click Edit.

9. Enter the desired value and click Apply.

   • Leaving the field blank will release that priority (i.e., write a NULL value).

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10. After applying changes, you will be returned to the priority list view. Review the values, and once everything looks correct, click OK to exit.