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Enabling Hierarchical Address Space

Enabling Hierarchical address space allows you to browse large number of collectors and tags.

Procedure

On the Start menu, click Run, type Regedit, and then click OK.
The Registry editor appears.
Open the following key folder HKEY_LOCAL_MACHINE\SOFTWARE\Intellution, Inc.\iHis- torian\HDAServer\.

Note: On a 64-bit Windows Operating System, open the following key folder HKEY_LOCAL_ MACHINE\SOFTWARE\Wow6432Node\\Intellution, Inc.\iHistorian\HDAServer\.
Create a new DWORD called "HierarchicalAddressSpace".
In the Value data field, type 255 (to enable Flat address space, set this value to 0).
Click OK, and then close the Registry Editor.
Restart the Historian HDA server by disconnecting and reconnecting all HDA clients.