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Historian OPC HDA Server Supported Attributes

The following table lists the Historian OPC HDA Server supported attributes.


Historian Property Type	Historian OPC HDA Attribute	Data Type	Description
Data Type	OPCHDA_ DATA_TYPE	Int16	Specifies the data type for the item. For more information, refer to the Historian OPC HAD Server supported data types section.
TagDescription	OPCHDA_ DESCRIPTION	String	Describes the item.
Engineering Units	OPCHDA_ ENG_UNITS	String	Specifies the label to use in displays to define the units for the item (For example, kg/sec).
Archiving	OPCHDA_ ARCHIVING	Boolean	Indicates whether Historian is recording data for this item. (Zero means it is not recording data)
ItemID	OPCHDA_ ITEMID	String	The Historian tag name. This is used to allow filtering in `CreateBrowsemethod`.